Skip to content

L
linux
Commit 517c2220 authored by Dave Chinner's avatar Dave Chinner Committed by Ben Myers
Browse files
Options

xfs: add CRCs to attr leaf blocks 

Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
Reviewed-by: default avatarBen Myers <bpm@sgi.com>
Signed-off-by: default avatarBen Myers <bpm@sgi.com>
parent f5ea1100
Hide whitespace changes
Inline Side-by-side
Showing with 1177 additions and 849 deletions
fs/xfs/xfs_attr.c
View file @ 517c2220
......@@ -819,7 +819,7 @@ xfs_attr_inactive(xfs_inode_t *dp)
error = 0;
goto out;
}
error = xfs_attr_root_inactive(&trans, dp);
error = xfs_attr3_root_inactive(&trans, dp);
if (error)
goto out;
......@@ -905,7 +905,7 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
*/
dp = args->dp;
args->blkno = 0;
error = xfs_attr_leaf_read(args->trans, args->dp, args->blkno, -1, &bp);
error = xfs_attr3_leaf_read(args->trans, args->dp, args->blkno, -1, &bp);
if (error)
return error;
......@@ -913,14 +913,14 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
* Look up the given attribute in the leaf block. Figure out if
* the given flags produce an error or call for an atomic rename.
*/
retval = xfs_attr_leaf_lookup_int(bp, args);
retval = xfs_attr3_leaf_lookup_int(bp, args);
if ((args->flags & ATTR_REPLACE) && (retval == ENOATTR)) {
xfs_trans_brelse(args->trans, bp);
return(retval);
return retval;
} else if (retval == EEXIST) {
if (args->flags & ATTR_CREATE) { /* pure create op */
xfs_trans_brelse(args->trans, bp);
return(retval);
return retval;
}
trace_xfs_attr_leaf_replace(args);
......@@ -936,7 +936,7 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
* Add the attribute to the leaf block, transitioning to a Btree
* if required.
*/
retval = xfs_attr_leaf_add(bp, args);
retval = xfs_attr3_leaf_add(bp, args);
if (retval == ENOSPC) {
/*
* Promote the attribute list to the Btree format, then
......@@ -944,7 +944,7 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
* can manage its own transactions.
*/
xfs_bmap_init(args->flist, args->firstblock);
error = xfs_attr_leaf_to_node(args);
error = xfs_attr3_leaf_to_node(args);
if (!error) {
error = xfs_bmap_finish(&args->trans, args->flist,
&committed);
......@@ -1009,7 +1009,7 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
* In a separate transaction, set the incomplete flag on the
* "old" attr and clear the incomplete flag on the "new" attr.
*/
error = xfs_attr_leaf_flipflags(args);
error = xfs_attr3_leaf_flipflags(args);
if (error)
return(error);
......@@ -1031,19 +1031,19 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
* Read in the block containing the "old" attr, then
* remove the "old" attr from that block (neat, huh!)
*/
error = xfs_attr_leaf_read(args->trans, args->dp, args->blkno,
error = xfs_attr3_leaf_read(args->trans, args->dp, args->blkno,
-1, &bp);
if (error)
return error;
xfs_attr_leaf_remove(bp, args);
xfs_attr3_leaf_remove(bp, args);
/*
* If the result is small enough, shrink it all into the inode.
*/
if ((forkoff = xfs_attr_shortform_allfit(bp, dp))) {
xfs_bmap_init(args->flist, args->firstblock);
error = xfs_attr_leaf_to_shortform(bp, args, forkoff);
error = xfs_attr3_leaf_to_shortform(bp, args, forkoff);
/* bp is gone due to xfs_da_shrink_inode */
if (!error) {
error = xfs_bmap_finish(&args->trans,
......@@ -1075,9 +1075,9 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
/*
* Added a "remote" value, just clear the incomplete flag.
*/
error = xfs_attr_leaf_clearflag(args);
error = xfs_attr3_leaf_clearflag(args);
}
return(error);
return error;
}
/*
......@@ -1100,24 +1100,24 @@ xfs_attr_leaf_removename(xfs_da_args_t *args)
*/
dp = args->dp;
args->blkno = 0;
error = xfs_attr_leaf_read(args->trans, args->dp, args->blkno, -1, &bp);
error = xfs_attr3_leaf_read(args->trans, args->dp, args->blkno, -1, &bp);
if (error)
return error;
error = xfs_attr_leaf_lookup_int(bp, args);
error = xfs_attr3_leaf_lookup_int(bp, args);
if (error == ENOATTR) {
xfs_trans_brelse(args->trans, bp);
return(error);
return error;
}
xfs_attr_leaf_remove(bp, args);
xfs_attr3_leaf_remove(bp, args);
/*
* If the result is small enough, shrink it all into the inode.
*/
if ((forkoff = xfs_attr_shortform_allfit(bp, dp))) {
xfs_bmap_init(args->flist, args->firstblock);
error = xfs_attr_leaf_to_shortform(bp, args, forkoff);
error = xfs_attr3_leaf_to_shortform(bp, args, forkoff);
/* bp is gone due to xfs_da_shrink_inode */
if (!error) {
error = xfs_bmap_finish(&args->trans, args->flist,
......@@ -1127,7 +1127,7 @@ xfs_attr_leaf_removename(xfs_da_args_t *args)
ASSERT(committed);
args->trans = NULL;
xfs_bmap_cancel(args->flist);
return(error);
return error;
}
/*
......@@ -1137,7 +1137,7 @@ xfs_attr_leaf_removename(xfs_da_args_t *args)
if (committed)
xfs_trans_ijoin(args->trans, dp, 0);
}
return(0);
return 0;
}
/*
......@@ -1155,21 +1155,21 @@ xfs_attr_leaf_get(xfs_da_args_t *args)
trace_xfs_attr_leaf_get(args);
args->blkno = 0;
error = xfs_attr_leaf_read(args->trans, args->dp, args->blkno, -1, &bp);
error = xfs_attr3_leaf_read(args->trans, args->dp, args->blkno, -1, &bp);
if (error)
return error;
error = xfs_attr_leaf_lookup_int(bp, args);
error = xfs_attr3_leaf_lookup_int(bp, args);
if (error != EEXIST) {
xfs_trans_brelse(args->trans, bp);
return(error);
return error;
}
error = xfs_attr_leaf_getvalue(bp, args);
error = xfs_attr3_leaf_getvalue(bp, args);
xfs_trans_brelse(args->trans, bp);
if (!error && (args->rmtblkno > 0) && !(args->flags & ATTR_KERNOVAL)) {
error = xfs_attr_rmtval_get(args);
}
return(error);
return error;
}
/*
......@@ -1184,11 +1184,11 @@ xfs_attr_leaf_list(xfs_attr_list_context_t *context)
trace_xfs_attr_leaf_list(context);
context->cursor->blkno = 0;
error = xfs_attr_leaf_read(NULL, context->dp, 0, -1, &bp);
error = xfs_attr3_leaf_read(NULL, context->dp, 0, -1, &bp);
if (error)
return XFS_ERROR(error);
error = xfs_attr_leaf_list_int(bp, context);
error = xfs_attr3_leaf_list_int(bp, context);
xfs_trans_brelse(NULL, bp);
return XFS_ERROR(error);
}
......@@ -1257,7 +1257,7 @@ xfs_attr_node_addname(xfs_da_args_t *args)
args->rmtblkcnt = 0;
}
retval = xfs_attr_leaf_add(blk->bp, state->args);
retval = xfs_attr3_leaf_add(blk->bp, state->args);
if (retval == ENOSPC) {
if (state->path.active == 1) {
/*
......@@ -1267,7 +1267,7 @@ xfs_attr_node_addname(xfs_da_args_t *args)
*/
xfs_da_state_free(state);
xfs_bmap_init(args->flist, args->firstblock);
error = xfs_attr_leaf_to_node(args);
error = xfs_attr3_leaf_to_node(args);
if (!error) {
error = xfs_bmap_finish(&args->trans,
args->flist,
......@@ -1369,7 +1369,7 @@ xfs_attr_node_addname(xfs_da_args_t *args)
* In a separate transaction, set the incomplete flag on the
* "old" attr and clear the incomplete flag on the "new" attr.
*/
error = xfs_attr_leaf_flipflags(args);
error = xfs_attr3_leaf_flipflags(args);
if (error)
goto out;
......@@ -1408,7 +1408,7 @@ xfs_attr_node_addname(xfs_da_args_t *args)
*/
blk = &state->path.blk[ state->path.active-1 ];
ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC);
error = xfs_attr_leaf_remove(blk->bp, args);
error = xfs_attr3_leaf_remove(blk->bp, args);
xfs_da3_fixhashpath(state, &state->path);
/*
......@@ -1449,7 +1449,7 @@ xfs_attr_node_addname(xfs_da_args_t *args)
/*
* Added a "remote" value, just clear the incomplete flag.
*/
error = xfs_attr_leaf_clearflag(args);
error = xfs_attr3_leaf_clearflag(args);
if (error)
goto out;
}
......@@ -1523,7 +1523,7 @@ xfs_attr_node_removename(xfs_da_args_t *args)
* Mark the attribute as INCOMPLETE, then bunmapi() the
* remote value.
*/
error = xfs_attr_leaf_setflag(args);
error = xfs_attr3_leaf_setflag(args);
if (error)
goto out;
error = xfs_attr_rmtval_remove(args);
......@@ -1544,7 +1544,7 @@ xfs_attr_node_removename(xfs_da_args_t *args)
*/
blk = &state->path.blk[ state->path.active-1 ];
ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC);
retval = xfs_attr_leaf_remove(blk->bp, args);
retval = xfs_attr3_leaf_remove(blk->bp, args);
xfs_da3_fixhashpath(state, &state->path);
/*
......@@ -1590,13 +1590,13 @@ xfs_attr_node_removename(xfs_da_args_t *args)
ASSERT(state->path.blk[0].bp);
state->path.blk[0].bp = NULL;
error = xfs_attr_leaf_read(args->trans, args->dp, 0, -1, &bp);
error = xfs_attr3_leaf_read(args->trans, args->dp, 0, -1, &bp);
if (error)
goto out;
if ((forkoff = xfs_attr_shortform_allfit(bp, dp))) {
xfs_bmap_init(args->flist, args->firstblock);
error = xfs_attr_leaf_to_shortform(bp, args, forkoff);
error = xfs_attr3_leaf_to_shortform(bp, args, forkoff);
/* bp is gone due to xfs_da_shrink_inode */
if (!error) {
error = xfs_bmap_finish(&args->trans,
......@@ -1768,7 +1768,7 @@ xfs_attr_node_get(xfs_da_args_t *args)
/*
* Get the value, local or "remote"
*/
retval = xfs_attr_leaf_getvalue(blk->bp, args);
retval = xfs_attr3_leaf_getvalue(blk->bp, args);
if (!retval && (args->rmtblkno > 0)
&& !(args->flags & ATTR_KERNOVAL)) {
retval = xfs_attr_rmtval_get(args);
......@@ -1793,7 +1793,9 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
attrlist_cursor_kern_t *cursor;
xfs_attr_leafblock_t *leaf;
xfs_da_intnode_t *node;
xfs_da_node_entry_t *btree;
struct xfs_attr3_icleaf_hdr leafhdr;
struct xfs_da3_icnode_hdr nodehdr;
struct xfs_da_node_entry *btree;
int error, i;
struct xfs_buf *bp;
......@@ -1814,22 +1816,28 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
if ((error != 0) && (error != EFSCORRUPTED))
return(error);
if (bp) {
struct xfs_attr_leaf_entry *entries;
node = bp->b_addr;
switch (be16_to_cpu(node->hdr.info.magic)) {
case XFS_DA_NODE_MAGIC:
case XFS_DA3_NODE_MAGIC:
trace_xfs_attr_list_wrong_blk(context);
xfs_trans_brelse(NULL, bp);
bp = NULL;
break;
case XFS_ATTR_LEAF_MAGIC:
case XFS_ATTR3_LEAF_MAGIC:
leaf = bp->b_addr;
if (cursor->hashval > be32_to_cpu(leaf->entries[
be16_to_cpu(leaf->hdr.count)-1].hashval)) {
xfs_attr3_leaf_hdr_from_disk(&leafhdr, leaf);
entries = xfs_attr3_leaf_entryp(leaf);
if (cursor->hashval > be32_to_cpu(
entries[leafhdr.count - 1].hashval)) {
trace_xfs_attr_list_wrong_blk(context);
xfs_trans_brelse(NULL, bp);
bp = NULL;
} else if (cursor->hashval <=
be32_to_cpu(leaf->entries[0].hashval)) {
} else if (cursor->hashval <= be32_to_cpu(
entries[0].hashval)) {
trace_xfs_attr_list_wrong_blk(context);
xfs_trans_brelse(NULL, bp);
bp = NULL;
......@@ -1851,27 +1859,31 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
if (bp == NULL) {
cursor->blkno = 0;
for (;;) {
__uint16_t magic;
error = xfs_da3_node_read(NULL, context->dp,
cursor->blkno, -1, &bp,
XFS_ATTR_FORK);
if (error)
return(error);
node = bp->b_addr;
if (node->hdr.info.magic ==
cpu_to_be16(XFS_ATTR_LEAF_MAGIC))
magic = be16_to_cpu(node->hdr.info.magic);
if (magic == XFS_ATTR_LEAF_MAGIC ||
magic == XFS_ATTR3_LEAF_MAGIC)
break;
if (unlikely(node->hdr.info.magic !=
cpu_to_be16(XFS_DA_NODE_MAGIC))) {
if (magic != XFS_DA_NODE_MAGIC &&
magic != XFS_DA3_NODE_MAGIC) {
XFS_CORRUPTION_ERROR("xfs_attr_node_list(3)",
XFS_ERRLEVEL_LOW,
context->dp->i_mount,
node);
xfs_trans_brelse(NULL, bp);
return(XFS_ERROR(EFSCORRUPTED));
return XFS_ERROR(EFSCORRUPTED);
}
xfs_da3_node_hdr_from_disk(&nodehdr, node);
btree = xfs_da3_node_tree_p(node);
for (i = 0; i < be16_to_cpu(node->hdr.count);
btree++, i++) {
for (i = 0; i < nodehdr.count; btree++, i++) {
if (cursor->hashval
<= be32_to_cpu(btree->hashval)) {
cursor->blkno = be32_to_cpu(btree->before);
......@@ -1880,9 +1892,9 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
break;
}
}
if (i == be16_to_cpu(node->hdr.count)) {
if (i == nodehdr.count) {
xfs_trans_brelse(NULL, bp);
return(0);
return 0;
}
xfs_trans_brelse(NULL, bp);
}
......@@ -1896,22 +1908,23 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
*/
for (;;) {
leaf = bp->b_addr;
error = xfs_attr_leaf_list_int(bp, context);
error = xfs_attr3_leaf_list_int(bp, context);
if (error) {
xfs_trans_brelse(NULL, bp);
return error;
}
if (context->seen_enough || leaf->hdr.info.forw == 0)
xfs_attr3_leaf_hdr_from_disk(&leafhdr, leaf);
if (context->seen_enough || leafhdr.forw == 0)
break;
cursor->blkno = be32_to_cpu(leaf->hdr.info.forw);
cursor->blkno = leafhdr.forw;
xfs_trans_brelse(NULL, bp);
error = xfs_attr_leaf_read(NULL, context->dp, cursor->blkno, -1,
error = xfs_attr3_leaf_read(NULL, context->dp, cursor->blkno, -1,
&bp);
if (error)
return error;
}
xfs_trans_brelse(NULL, bp);
return(0);
return 0;
}
......
fs/xfs/xfs_attr_leaf.c
View file @ 517c2220
/*
* Copyright (c) 2000-2005 Silicon Graphics, Inc.
* Copyright (c) 2013 Red Hat, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
......@@ -39,6 +40,9 @@
#include "xfs_attr_leaf.h"
#include "xfs_error.h"
#include "xfs_trace.h"
#include "xfs_buf_item.h"
#include "xfs_cksum.h"
/*
* xfs_attr_leaf.c
......@@ -53,77 +57,213 @@
/*
* Routines used for growing the Btree.
*/
STATIC int xfs_attr_leaf_create(xfs_da_args_t *args, xfs_dablk_t which_block,
struct xfs_buf **bpp);
STATIC int xfs_attr_leaf_add_work(struct xfs_buf *leaf_buffer,
xfs_da_args_t *args, int freemap_index);
STATIC void xfs_attr_leaf_compact(struct xfs_da_args *args,
struct xfs_buf *leaf_buffer);
STATIC void xfs_attr_leaf_rebalance(xfs_da_state_t *state,
STATIC int xfs_attr3_leaf_create(struct xfs_da_args *args,
xfs_dablk_t which_block, struct xfs_buf **bpp);
STATIC int xfs_attr3_leaf_add_work(struct xfs_buf *leaf_buffer,
struct xfs_attr3_icleaf_hdr *ichdr,
struct xfs_da_args *args, int freemap_index);
STATIC void xfs_attr3_leaf_compact(struct xfs_da_args *args,
struct xfs_attr3_icleaf_hdr *ichdr,
struct xfs_buf *leaf_buffer);
STATIC void xfs_attr3_leaf_rebalance(xfs_da_state_t *state,
xfs_da_state_blk_t *blk1,
xfs_da_state_blk_t *blk2);
STATIC int xfs_attr_leaf_figure_balance(xfs_da_state_t *state,
xfs_da_state_blk_t *leaf_blk_1,
xfs_da_state_blk_t *leaf_blk_2,
int *number_entries_in_blk1,
int *number_usedbytes_in_blk1);
STATIC int xfs_attr3_leaf_figure_balance(xfs_da_state_t *state,
xfs_da_state_blk_t *leaf_blk_1,
struct xfs_attr3_icleaf_hdr *ichdr1,
xfs_da_state_blk_t *leaf_blk_2,
struct xfs_attr3_icleaf_hdr *ichdr2,
int *number_entries_in_blk1,
int *number_usedbytes_in_blk1);
/*
* Routines used for shrinking the Btree.
*/
STATIC int xfs_attr_node_inactive(xfs_trans_t **trans, xfs_inode_t *dp,
STATIC int xfs_attr3_node_inactive(xfs_trans_t **trans, xfs_inode_t *dp,
struct xfs_buf *bp, int level);
STATIC int xfs_attr_leaf_inactive(xfs_trans_t **trans, xfs_inode_t *dp,
STATIC int xfs_attr3_leaf_inactive(xfs_trans_t **trans, xfs_inode_t *dp,
struct xfs_buf *bp);
STATIC int xfs_attr_leaf_freextent(xfs_trans_t **trans, xfs_inode_t *dp,
STATIC int xfs_attr3_leaf_freextent(xfs_trans_t **trans, xfs_inode_t *dp,
xfs_dablk_t blkno, int blkcnt);
/*
* Utility routines.
*/
STATIC void xfs_attr_leaf_moveents(xfs_attr_leafblock_t *src_leaf,
int src_start,
xfs_attr_leafblock_t *dst_leaf,
int dst_start, int move_count,
xfs_mount_t *mp);
STATIC void xfs_attr3_leaf_moveents(struct xfs_attr_leafblock *src_leaf,
struct xfs_attr3_icleaf_hdr *src_ichdr, int src_start,
struct xfs_attr_leafblock *dst_leaf,
struct xfs_attr3_icleaf_hdr *dst_ichdr, int dst_start,
int move_count, struct xfs_mount *mp);
STATIC int xfs_attr_leaf_entsize(xfs_attr_leafblock_t *leaf, int index);
static void
xfs_attr_leaf_verify(
void
xfs_attr3_leaf_hdr_from_disk(
struct xfs_attr3_icleaf_hdr *to,
struct xfs_attr_leafblock *from)
{
int i;
ASSERT(from->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC) ||
from->hdr.info.magic == cpu_to_be16(XFS_ATTR3_LEAF_MAGIC));
if (from->hdr.info.magic == cpu_to_be16(XFS_ATTR3_LEAF_MAGIC)) {
struct xfs_attr3_leaf_hdr *hdr3 = (struct xfs_attr3_leaf_hdr *)from;
to->forw = be32_to_cpu(hdr3->info.hdr.forw);
to->back = be32_to_cpu(hdr3->info.hdr.back);
to->magic = be16_to_cpu(hdr3->info.hdr.magic);
to->count = be16_to_cpu(hdr3->count);
to->usedbytes = be16_to_cpu(hdr3->usedbytes);
to->firstused = be16_to_cpu(hdr3->firstused);
to->holes = hdr3->holes;
for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; i++) {
to->freemap[i].base = be16_to_cpu(hdr3->freemap[i].base);
to->freemap[i].size = be16_to_cpu(hdr3->freemap[i].size);
}
return;
}
to->forw = be32_to_cpu(from->hdr.info.forw);
to->back = be32_to_cpu(from->hdr.info.back);
to->magic = be16_to_cpu(from->hdr.info.magic);
to->count = be16_to_cpu(from->hdr.count);
to->usedbytes = be16_to_cpu(from->hdr.usedbytes);
to->firstused = be16_to_cpu(from->hdr.firstused);
to->holes = from->hdr.holes;
for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; i++) {
to->freemap[i].base = be16_to_cpu(from->hdr.freemap[i].base);
to->freemap[i].size = be16_to_cpu(from->hdr.freemap[i].size);
}
}
void
xfs_attr3_leaf_hdr_to_disk(
struct xfs_attr_leafblock *to,
struct xfs_attr3_icleaf_hdr *from)
{
int i;
ASSERT(from->magic == XFS_ATTR_LEAF_MAGIC ||
from->magic == XFS_ATTR3_LEAF_MAGIC);
if (from->magic == XFS_ATTR3_LEAF_MAGIC) {
struct xfs_attr3_leaf_hdr *hdr3 = (struct xfs_attr3_leaf_hdr *)to;
hdr3->info.hdr.forw = cpu_to_be32(from->forw);
hdr3->info.hdr.back = cpu_to_be32(from->back);
hdr3->info.hdr.magic = cpu_to_be16(from->magic);
hdr3->count = cpu_to_be16(from->count);
hdr3->usedbytes = cpu_to_be16(from->usedbytes);
hdr3->firstused = cpu_to_be16(from->firstused);
hdr3->holes = from->holes;
hdr3->pad1 = 0;
for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; i++) {
hdr3->freemap[i].base = cpu_to_be16(from->freemap[i].base);
hdr3->freemap[i].size = cpu_to_be16(from->freemap[i].size);
}
return;
}
to->hdr.info.forw = cpu_to_be32(from->forw);
to->hdr.info.back = cpu_to_be32(from->back);
to->hdr.info.magic = cpu_to_be16(from->magic);
to->hdr.count = cpu_to_be16(from->count);
to->hdr.usedbytes = cpu_to_be16(from->usedbytes);
to->hdr.firstused = cpu_to_be16(from->firstused);
to->hdr.holes = from->holes;
to->hdr.pad1 = 0;
for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; i++) {
to->hdr.freemap[i].base = cpu_to_be16(from->freemap[i].base);
to->hdr.freemap[i].size = cpu_to_be16(from->freemap[i].size);
}
}
static bool
xfs_attr3_leaf_verify(
struct xfs_buf *bp)
{
struct xfs_mount *mp = bp->b_target->bt_mount;
struct xfs_attr_leaf_hdr *hdr = bp->b_addr;
int block_ok = 0;
struct xfs_attr_leafblock *leaf = bp->b_addr;
struct xfs_attr3_icleaf_hdr ichdr;
block_ok = hdr->info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC);
if (!block_ok) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, hdr);
xfs_buf_ioerror(bp, EFSCORRUPTED);
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
if (xfs_sb_version_hascrc(&mp->m_sb)) {
struct xfs_da3_node_hdr *hdr3 = bp->b_addr;
if (ichdr.magic != XFS_ATTR3_LEAF_MAGIC)
return false;
if (!uuid_equal(&hdr3->info.uuid, &mp->m_sb.sb_uuid))
return false;
if (be64_to_cpu(hdr3->info.blkno) != bp->b_bn)
return false;
} else {
if (ichdr.magic != XFS_ATTR_LEAF_MAGIC)
return false;
}
if (ichdr.count == 0)
return false;
/* XXX: need to range check rest of attr header values */
/* XXX: hash order check? */
return true;
}
static void
xfs_attr_leaf_read_verify(
xfs_attr3_leaf_write_verify(
struct xfs_buf *bp)
{
xfs_attr_leaf_verify(bp);
struct xfs_mount *mp = bp->b_target->bt_mount;
struct xfs_buf_log_item *bip = bp->b_fspriv;
struct xfs_attr3_leaf_hdr *hdr3 = bp->b_addr;
if (!xfs_attr3_leaf_verify(bp)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr);
xfs_buf_ioerror(bp, EFSCORRUPTED);
return;
}
if (!xfs_sb_version_hascrc(&mp->m_sb))
return;
if (bip)
hdr3->info.lsn = cpu_to_be64(bip->bli_item.li_lsn);
xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_ATTR3_LEAF_CRC_OFF);
}
/*
* leaf/node format detection on trees is sketchy, so a node read can be done on
* leaf level blocks when detection identifies the tree as a node format tree
* incorrectly. In this case, we need to swap the verifier to match the correct
* format of the block being read.
*/
static void
xfs_attr_leaf_write_verify(
struct xfs_buf *bp)
xfs_attr3_leaf_read_verify(
struct xfs_buf *bp)
{
xfs_attr_leaf_verify(bp);
struct xfs_mount *mp = bp->b_target->bt_mount;
if ((xfs_sb_version_hascrc(&mp->m_sb) &&
!xfs_verify_cksum(bp->b_addr, BBTOB(bp->b_length),
XFS_ATTR3_LEAF_CRC_OFF)) ||
!xfs_attr3_leaf_verify(bp)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr);
xfs_buf_ioerror(bp, EFSCORRUPTED);
}
}
const struct xfs_buf_ops xfs_attr_leaf_buf_ops = {
.verify_read = xfs_attr_leaf_read_verify,
.verify_write = xfs_attr_leaf_write_verify,
const struct xfs_buf_ops xfs_attr3_leaf_buf_ops = {
.verify_read = xfs_attr3_leaf_read_verify,
.verify_write = xfs_attr3_leaf_write_verify,
};
int
xfs_attr_leaf_read(
xfs_attr3_leaf_read(
struct xfs_trans *tp,
struct xfs_inode *dp,
xfs_dablk_t bno,
......@@ -131,7 +271,7 @@ xfs_attr_leaf_read(
struct xfs_buf **bpp)
{
return xfs_da_read_buf(tp, dp, bno, mappedbno, bpp,
XFS_ATTR_FORK, &xfs_attr_leaf_buf_ops);
XFS_ATTR_FORK, &xfs_attr3_leaf_buf_ops);
}
/*========================================================================
......@@ -559,7 +699,7 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args)
}
ASSERT(blkno == 0);
error = xfs_attr_leaf_create(args, blkno, &bp);
error = xfs_attr3_leaf_create(args, blkno, &bp);
if (error) {
error = xfs_da_shrink_inode(args, 0, bp);
bp = NULL;
......@@ -588,9 +728,9 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args)
nargs.hashval = xfs_da_hashname(sfe->nameval,
sfe->namelen);
nargs.flags = XFS_ATTR_NSP_ONDISK_TO_ARGS(sfe->flags);
error = xfs_attr_leaf_lookup_int(bp, &nargs); /* set a->index */
error = xfs_attr3_leaf_lookup_int(bp, &nargs); /* set a->index */
ASSERT(error == ENOATTR);
error = xfs_attr_leaf_add(bp, &nargs);
error = xfs_attr3_leaf_add(bp, &nargs);
ASSERT(error != ENOSPC);
if (error)
goto out;
......@@ -803,7 +943,7 @@ xfs_attr_shortform_allfit(
continue; /* don't copy partial entries */
if (!(entry->flags & XFS_ATTR_LOCAL))
return(0);
name_loc = xfs_attr_leaf_name_local(leaf, i);
name_loc = xfs_attr3_leaf_name_local(leaf, i);
if (name_loc->namelen >= XFS_ATTR_SF_ENTSIZE_MAX)
return(0);
if (be16_to_cpu(name_loc->valuelen) >= XFS_ATTR_SF_ENTSIZE_MAX)
......@@ -823,29 +963,34 @@ xfs_attr_shortform_allfit(
* Convert a leaf attribute list to shortform attribute list
*/
int
xfs_attr_leaf_to_shortform(
struct xfs_buf *bp,
xfs_da_args_t *args,
int forkoff)
xfs_attr3_leaf_to_shortform(
struct xfs_buf *bp,
struct xfs_da_args *args,
int forkoff)
{
xfs_attr_leafblock_t *leaf;
xfs_attr_leaf_entry_t *entry;
xfs_attr_leaf_name_local_t *name_loc;
xfs_da_args_t nargs;
xfs_inode_t *dp;
char *tmpbuffer;
int error, i;
struct xfs_attr_leafblock *leaf;
struct xfs_attr3_icleaf_hdr ichdr;
struct xfs_attr_leaf_entry *entry;
struct xfs_attr_leaf_name_local *name_loc;
struct xfs_da_args nargs;
struct xfs_inode *dp = args->dp;
char *tmpbuffer;
int error;
int i;
trace_xfs_attr_leaf_to_sf(args);
dp = args->dp;
tmpbuffer = kmem_alloc(XFS_LBSIZE(dp->i_mount), KM_SLEEP);
ASSERT(tmpbuffer != NULL);
if (!tmpbuffer)
return ENOMEM;
ASSERT(bp != NULL);
memcpy(tmpbuffer, bp->b_addr, XFS_LBSIZE(dp->i_mount));
leaf = (xfs_attr_leafblock_t *)tmpbuffer;
ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
entry = xfs_attr3_leaf_entryp(leaf);
/* XXX (dgc): buffer is about to be marked stale - why zero it? */
memset(bp->b_addr, 0, XFS_LBSIZE(dp->i_mount));
/*
......@@ -875,14 +1020,14 @@ xfs_attr_leaf_to_shortform(
nargs.whichfork = XFS_ATTR_FORK;
nargs.trans = args->trans;
nargs.op_flags = XFS_DA_OP_OKNOENT;
entry = &leaf->entries[0];
for (i = 0; i < be16_to_cpu(leaf->hdr.count); entry++, i++) {
for (i = 0; i < ichdr.count; entry++, i++) {
if (entry->flags & XFS_ATTR_INCOMPLETE)
continue; /* don't copy partial entries */
if (!entry->nameidx)
continue;
ASSERT(entry->flags & XFS_ATTR_LOCAL);
name_loc = xfs_attr_leaf_name_local(leaf, i);
name_loc = xfs_attr3_leaf_name_local(leaf, i);
nargs.name = name_loc->nameval;
nargs.namelen = name_loc->namelen;
nargs.value = &name_loc->nameval[nargs.namelen];
......@@ -895,43 +1040,50 @@ xfs_attr_leaf_to_shortform(
out:
kmem_free(tmpbuffer);
return(error);
return error;
}
/*
* Convert from using a single leaf to a root node and a leaf.
*/
int
xfs_attr_leaf_to_node(xfs_da_args_t *args)
xfs_attr3_leaf_to_node(
struct xfs_da_args *args)
{
xfs_attr_leafblock_t *leaf;
xfs_da_intnode_t *node;
xfs_inode_t *dp;
struct xfs_buf *bp1, *bp2;
xfs_dablk_t blkno;
int error;
struct xfs_attr_leafblock *leaf;
struct xfs_attr3_icleaf_hdr icleafhdr;
struct xfs_attr_leaf_entry *entries;
struct xfs_da_node_entry *btree;
struct xfs_da3_icnode_hdr icnodehdr;
struct xfs_da_intnode *node;
struct xfs_inode *dp = args->dp;
struct xfs_mount *mp = dp->i_mount;
struct xfs_buf *bp1 = NULL;
struct xfs_buf *bp2 = NULL;
xfs_dablk_t blkno;
int error;
trace_xfs_attr_leaf_to_node(args);
dp = args->dp;
bp1 = bp2 = NULL;
error = xfs_da_grow_inode(args, &blkno);
if (error)
goto out;
error = xfs_attr_leaf_read(args->trans, args->dp, 0, -1, &bp1);
error = xfs_attr3_leaf_read(args->trans, dp, 0, -1, &bp1);
if (error)
goto out;
bp2 = NULL;
error = xfs_da_get_buf(args->trans, args->dp, blkno, -1, &bp2,
XFS_ATTR_FORK);
error = xfs_da_get_buf(args->trans, dp, blkno, -1, &bp2, XFS_ATTR_FORK);
if (error)
goto out;
/* copy leaf to new buffer, update identifiers */
bp2->b_ops = bp1->b_ops;
memcpy(bp2->b_addr, bp1->b_addr, XFS_LBSIZE(dp->i_mount));
bp1 = NULL;
xfs_trans_log_buf(args->trans, bp2, 0, XFS_LBSIZE(dp->i_mount) - 1);
memcpy(bp2->b_addr, bp1->b_addr, XFS_LBSIZE(mp));
if (xfs_sb_version_hascrc(&mp->m_sb)) {
struct xfs_da3_blkinfo *hdr3 = bp2->b_addr;
hdr3->blkno = cpu_to_be64(bp2->b_bn);
}
xfs_trans_log_buf(args->trans, bp2, 0, XFS_LBSIZE(mp) - 1);
/*
* Set up the new root node.
......@@ -940,17 +1092,22 @@ xfs_attr_leaf_to_node(xfs_da_args_t *args)
if (error)
goto out;
node = bp1->b_addr;
xfs_da3_node_hdr_from_disk(&icnodehdr, node);
btree = xfs_da3_node_tree_p(node);
leaf = bp2->b_addr;
ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
xfs_attr3_leaf_hdr_from_disk(&icleafhdr, leaf);
entries = xfs_attr3_leaf_entryp(leaf);
/* both on-disk, don't endian-flip twice */
btree = xfs_da3_node_tree_p(node);
btree[0].hashval = leaf->entries[be16_to_cpu(leaf->hdr.count)-1 ].hashval;
btree[0].hashval = entries[icleafhdr.count - 1].hashval;
btree[0].before = cpu_to_be32(blkno);
node->hdr.count = cpu_to_be16(1);
xfs_trans_log_buf(args->trans, bp1, 0, XFS_LBSIZE(dp->i_mount) - 1);
icnodehdr.count = 1;
xfs_da3_node_hdr_to_disk(node, &icnodehdr);
xfs_trans_log_buf(args->trans, bp1, 0, XFS_LBSIZE(mp) - 1);
error = 0;
out:
return(error);
return error;
}
......@@ -963,52 +1120,62 @@ xfs_attr_leaf_to_node(xfs_da_args_t *args)
* or a leaf in a node attribute list.
*/
STATIC int
xfs_attr_leaf_create(
xfs_da_args_t *args,
xfs_dablk_t blkno,
struct xfs_buf **bpp)
xfs_attr3_leaf_create(
struct xfs_da_args *args,
xfs_dablk_t blkno,
struct xfs_buf **bpp)
{
xfs_attr_leafblock_t *leaf;
xfs_attr_leaf_hdr_t *hdr;
xfs_inode_t *dp;
struct xfs_buf *bp;
int error;
struct xfs_attr_leafblock *leaf;
struct xfs_attr3_icleaf_hdr ichdr;
struct xfs_inode *dp = args->dp;
struct xfs_mount *mp = dp->i_mount;
struct xfs_buf *bp;
int error;
trace_xfs_attr_leaf_create(args);
dp = args->dp;
ASSERT(dp != NULL);
error = xfs_da_get_buf(args->trans, args->dp, blkno, -1, &bp,
XFS_ATTR_FORK);
if (error)
return(error);
bp->b_ops = &xfs_attr_leaf_buf_ops;
return error;
bp->b_ops = &xfs_attr3_leaf_buf_ops;
leaf = bp->b_addr;
memset((char *)leaf, 0, XFS_LBSIZE(dp->i_mount));
hdr = &leaf->hdr;
hdr->info.magic = cpu_to_be16(XFS_ATTR_LEAF_MAGIC);
hdr->firstused = cpu_to_be16(XFS_LBSIZE(dp->i_mount));
if (!hdr->firstused) {
hdr->firstused = cpu_to_be16(
XFS_LBSIZE(dp->i_mount) - XFS_ATTR_LEAF_NAME_ALIGN);
}
memset(leaf, 0, XFS_LBSIZE(mp));
memset(&ichdr, 0, sizeof(ichdr));
ichdr.firstused = XFS_LBSIZE(mp);
if (xfs_sb_version_hascrc(&mp->m_sb)) {
struct xfs_da3_blkinfo *hdr3 = bp->b_addr;
ichdr.magic = XFS_ATTR3_LEAF_MAGIC;
hdr3->blkno = cpu_to_be64(bp->b_bn);
hdr3->owner = cpu_to_be64(dp->i_ino);
uuid_copy(&hdr3->uuid, &mp->m_sb.sb_uuid);
hdr->freemap[0].base = cpu_to_be16(sizeof(xfs_attr_leaf_hdr_t));
hdr->freemap[0].size = cpu_to_be16(be16_to_cpu(hdr->firstused) -
sizeof(xfs_attr_leaf_hdr_t));
ichdr.freemap[0].base = sizeof(struct xfs_attr3_leaf_hdr);
} else {
ichdr.magic = XFS_ATTR_LEAF_MAGIC;
ichdr.freemap[0].base = sizeof(struct xfs_attr_leaf_hdr);
}
ichdr.freemap[0].size = ichdr.firstused - ichdr.freemap[0].base;
xfs_trans_log_buf(args->trans, bp, 0, XFS_LBSIZE(dp->i_mount) - 1);
xfs_attr3_leaf_hdr_to_disk(leaf, &ichdr);
xfs_trans_log_buf(args->trans, bp, 0, XFS_LBSIZE(mp) - 1);
*bpp = bp;
return(0);
return 0;
}
/*
* Split the leaf node, rebalance, then add the new entry.
*/
int
xfs_attr_leaf_split(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
xfs_da_state_blk_t *newblk)
xfs_attr3_leaf_split(
struct xfs_da_state *state,
struct xfs_da_state_blk *oldblk,
struct xfs_da_state_blk *newblk)
{
xfs_dablk_t blkno;
int error;
......@@ -1022,7 +1189,7 @@ xfs_attr_leaf_split(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
error = xfs_da_grow_inode(state->args, &blkno);
if (error)
return(error);
error = xfs_attr_leaf_create(state->args, blkno, &newblk->bp);
error = xfs_attr3_leaf_create(state->args, blkno, &newblk->bp);
if (error)
return(error);
newblk->blkno = blkno;
......@@ -1032,7 +1199,7 @@ xfs_attr_leaf_split(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
* Rebalance the entries across the two leaves.
* NOTE: rebalance() currently depends on the 2nd block being empty.
*/
xfs_attr_leaf_rebalance(state, oldblk, newblk);
xfs_attr3_leaf_rebalance(state, oldblk, newblk);
error = xfs_da3_blk_link(state, oldblk, newblk);
if (error)
return(error);
......@@ -1046,10 +1213,10 @@ xfs_attr_leaf_split(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
*/
if (state->inleaf) {
trace_xfs_attr_leaf_add_old(state->args);
error = xfs_attr_leaf_add(oldblk->bp, state->args);
error = xfs_attr3_leaf_add(oldblk->bp, state->args);
} else {
trace_xfs_attr_leaf_add_new(state->args);
error = xfs_attr_leaf_add(newblk->bp, state->args);
error = xfs_attr3_leaf_add(newblk->bp, state->args);
}
/*
......@@ -1064,22 +1231,23 @@ xfs_attr_leaf_split(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
* Add a name to the leaf attribute list structure.
*/
int
xfs_attr_leaf_add(
xfs_attr3_leaf_add(
struct xfs_buf *bp,
struct xfs_da_args *args)
{
xfs_attr_leafblock_t *leaf;
xfs_attr_leaf_hdr_t *hdr;
xfs_attr_leaf_map_t *map;
int tablesize, entsize, sum, tmp, i;
struct xfs_attr_leafblock *leaf;
struct xfs_attr3_icleaf_hdr ichdr;
int tablesize;
int entsize;
int sum;
int tmp;
int i;
trace_xfs_attr_leaf_add(args);
leaf = bp->b_addr;
ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
ASSERT((args->index >= 0)
&& (args->index <= be16_to_cpu(leaf->hdr.count)));
hdr = &leaf->hdr;
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
ASSERT(args->index >= 0 && args->index <= ichdr.count);
entsize = xfs_attr_leaf_newentsize(args->namelen, args->valuelen,
args->trans->t_mountp->m_sb.sb_blocksize, NULL);
......@@ -1087,25 +1255,23 @@ xfs_attr_leaf_add(
* Search through freemap for first-fit on new name length.
* (may need to figure in size of entry struct too)
*/
tablesize = (be16_to_cpu(hdr->count) + 1)
* sizeof(xfs_attr_leaf_entry_t)
+ sizeof(xfs_attr_leaf_hdr_t);
map = &hdr->freemap[XFS_ATTR_LEAF_MAPSIZE-1];
for (sum = 0, i = XFS_ATTR_LEAF_MAPSIZE-1; i >= 0; map--, i--) {
if (tablesize > be16_to_cpu(hdr->firstused)) {
sum += be16_to_cpu(map->size);
tablesize = (ichdr.count + 1) * sizeof(xfs_attr_leaf_entry_t)
+ xfs_attr3_leaf_hdr_size(leaf);
for (sum = 0, i = XFS_ATTR_LEAF_MAPSIZE - 1; i >= 0; i--) {
if (tablesize > ichdr.firstused) {
sum += ichdr.freemap[i].size;
continue;
}
if (!map->size)
if (!ichdr.freemap[i].size)
continue; /* no space in this map */
tmp = entsize;
if (be16_to_cpu(map->base) < be16_to_cpu(hdr->firstused))
if (ichdr.freemap[i].base < ichdr.firstused)
tmp += sizeof(xfs_attr_leaf_entry_t);
if (be16_to_cpu(map->size) >= tmp) {
tmp = xfs_attr_leaf_add_work(bp, args, i);
return(tmp);
if (ichdr.freemap[i].size >= tmp) {
tmp = xfs_attr3_leaf_add_work(bp, &ichdr, args, i);
goto out_log_hdr;
}
sum += be16_to_cpu(map->size);
sum += ichdr.freemap[i].size;
}
/*
......@@ -1113,82 +1279,89 @@ xfs_attr_leaf_add(
* and we don't have enough freespace, then compaction will do us
* no good and we should just give up.
*/
if (!hdr->holes && (sum < entsize))
return(XFS_ERROR(ENOSPC));
if (!ichdr.holes && sum < entsize)
return XFS_ERROR(ENOSPC);
/*
* Compact the entries to coalesce free space.
* This may change the hdr->count via dropping INCOMPLETE entries.
*/
xfs_attr_leaf_compact(args, bp);
xfs_attr3_leaf_compact(args, &ichdr, bp);
/*
* After compaction, the block is guaranteed to have only one
* free region, in freemap[0]. If it is not big enough, give up.
*/
if (be16_to_cpu(hdr->freemap[0].size)
< (entsize + sizeof(xfs_attr_leaf_entry_t)))
return(XFS_ERROR(ENOSPC));
if (ichdr.freemap[0].size < (entsize + sizeof(xfs_attr_leaf_entry_t))) {
tmp = ENOSPC;
goto out_log_hdr;
}
tmp = xfs_attr3_leaf_add_work(bp, &ichdr, args, 0);
return(xfs_attr_leaf_add_work(bp, args, 0));
out_log_hdr:
xfs_attr3_leaf_hdr_to_disk(leaf, &ichdr);
xfs_trans_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, &leaf->hdr,
xfs_attr3_leaf_hdr_size(leaf)));
return tmp;
}
/*
* Add a name to a leaf attribute list structure.
*/
STATIC int
xfs_attr_leaf_add_work(
struct xfs_buf *bp,
xfs_da_args_t *args,
int mapindex)
xfs_attr3_leaf_add_work(
struct xfs_buf *bp,
struct xfs_attr3_icleaf_hdr *ichdr,
struct xfs_da_args *args,
int mapindex)
{
xfs_attr_leafblock_t *leaf;
xfs_attr_leaf_hdr_t *hdr;
xfs_attr_leaf_entry_t *entry;
xfs_attr_leaf_name_local_t *name_loc;
xfs_attr_leaf_name_remote_t *name_rmt;
xfs_attr_leaf_map_t *map;
xfs_mount_t *mp;
int tmp, i;
struct xfs_attr_leafblock *leaf;
struct xfs_attr_leaf_entry *entry;
struct xfs_attr_leaf_name_local *name_loc;
struct xfs_attr_leaf_name_remote *name_rmt;
struct xfs_mount *mp;
int tmp;
int i;
trace_xfs_attr_leaf_add_work(args);
leaf = bp->b_addr;
ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
hdr = &leaf->hdr;
ASSERT((mapindex >= 0) && (mapindex < XFS_ATTR_LEAF_MAPSIZE));
ASSERT((args->index >= 0) && (args->index <= be16_to_cpu(hdr->count)));
ASSERT(mapindex >= 0 && mapindex < XFS_ATTR_LEAF_MAPSIZE);
ASSERT(args->index >= 0 && args->index <= ichdr->count);
/*
* Force open some space in the entry array and fill it in.
*/
entry = &leaf->entries[args->index];
if (args->index < be16_to_cpu(hdr->count)) {
tmp = be16_to_cpu(hdr->count) - args->index;
entry = &xfs_attr3_leaf_entryp(leaf)[args->index];
if (args->index < ichdr->count) {
tmp = ichdr->count - args->index;
tmp *= sizeof(xfs_attr_leaf_entry_t);
memmove((char *)(entry+1), (char *)entry, tmp);
memmove(entry + 1, entry, tmp);
xfs_trans_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, entry, tmp + sizeof(*entry)));
}
be16_add_cpu(&hdr->count, 1);
ichdr->count++;
/*
* Allocate space for the new string (at the end of the run).
*/
map = &hdr->freemap[mapindex];
mp = args->trans->t_mountp;
ASSERT(be16_to_cpu(map->base) < XFS_LBSIZE(mp));
ASSERT((be16_to_cpu(map->base) & 0x3) == 0);
ASSERT(be16_to_cpu(map->size) >=
ASSERT(ichdr->freemap[mapindex].base < XFS_LBSIZE(mp));
ASSERT((ichdr->freemap[mapindex].base & 0x3) == 0);
ASSERT(ichdr->freemap[mapindex].size >=
xfs_attr_leaf_newentsize(args->namelen, args->valuelen,
mp->m_sb.sb_blocksize, NULL));
ASSERT(be16_to_cpu(map->size) < XFS_LBSIZE(mp));
ASSERT((be16_to_cpu(map->size) & 0x3) == 0);
be16_add_cpu(&map->size,
-xfs_attr_leaf_newentsize(args->namelen, args->valuelen,
mp->m_sb.sb_blocksize, &tmp));
entry->nameidx = cpu_to_be16(be16_to_cpu(map->base) +
be16_to_cpu(map->size));
ASSERT(ichdr->freemap[mapindex].size < XFS_LBSIZE(mp));
ASSERT((ichdr->freemap[mapindex].size & 0x3) == 0);
ichdr->freemap[mapindex].size -=
xfs_attr_leaf_newentsize(args->namelen, args->valuelen,
mp->m_sb.sb_blocksize, &tmp);
entry->nameidx = cpu_to_be16(ichdr->freemap[mapindex].base +
ichdr->freemap[mapindex].size);
entry->hashval = cpu_to_be32(args->hashval);
entry->flags = tmp ? XFS_ATTR_LOCAL : 0;
entry->flags |= XFS_ATTR_NSP_ARGS_TO_ONDISK(args->flags);
......@@ -1203,7 +1376,7 @@ xfs_attr_leaf_add_work(
XFS_DA_LOGRANGE(leaf, entry, sizeof(*entry)));
ASSERT((args->index == 0) ||
(be32_to_cpu(entry->hashval) >= be32_to_cpu((entry-1)->hashval)));
ASSERT((args->index == be16_to_cpu(hdr->count)-1) ||
ASSERT((args->index == ichdr->count - 1) ||
(be32_to_cpu(entry->hashval) <= be32_to_cpu((entry+1)->hashval)));
/*
......@@ -1214,14 +1387,14 @@ xfs_attr_leaf_add_work(
* as part of this transaction (a split operation for example).
*/
if (entry->flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr_leaf_name_local(leaf, args->index);
name_loc = xfs_attr3_leaf_name_local(leaf, args->index);
name_loc->namelen = args->namelen;
name_loc->valuelen = cpu_to_be16(args->valuelen);
memcpy((char *)name_loc->nameval, args->name, args->namelen);
memcpy((char *)&name_loc->nameval[args->namelen], args->value,
be16_to_cpu(name_loc->valuelen));
} else {
name_rmt = xfs_attr_leaf_name_remote(leaf, args->index);
name_rmt = xfs_attr3_leaf_name_remote(leaf, args->index);
name_rmt->namelen = args->namelen;
memcpy((char *)name_rmt->name, args->name, args->namelen);
entry->flags |= XFS_ATTR_INCOMPLETE;
......@@ -1232,44 +1405,41 @@ xfs_attr_leaf_add_work(
args->rmtblkcnt = XFS_B_TO_FSB(mp, args->valuelen);
}
xfs_trans_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, xfs_attr_leaf_name(leaf, args->index),
XFS_DA_LOGRANGE(leaf, xfs_attr3_leaf_name(leaf, args->index),
xfs_attr_leaf_entsize(leaf, args->index)));
/*
* Update the control info for this leaf node
*/
if (be16_to_cpu(entry->nameidx) < be16_to_cpu(hdr->firstused)) {
/* both on-disk, don't endian-flip twice */
hdr->firstused = entry->nameidx;
}
ASSERT(be16_to_cpu(hdr->firstused) >=
((be16_to_cpu(hdr->count) * sizeof(*entry)) + sizeof(*hdr)));
tmp = (be16_to_cpu(hdr->count)-1) * sizeof(xfs_attr_leaf_entry_t)
+ sizeof(xfs_attr_leaf_hdr_t);
map = &hdr->freemap[0];
for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; map++, i++) {
if (be16_to_cpu(map->base) == tmp) {
be16_add_cpu(&map->base, sizeof(xfs_attr_leaf_entry_t));
be16_add_cpu(&map->size,
-((int)sizeof(xfs_attr_leaf_entry_t)));
if (be16_to_cpu(entry->nameidx) < ichdr->firstused)
ichdr->firstused = be16_to_cpu(entry->nameidx);
ASSERT(ichdr->firstused >= ichdr->count * sizeof(xfs_attr_leaf_entry_t)
+ xfs_attr3_leaf_hdr_size(leaf));
tmp = (ichdr->count - 1) * sizeof(xfs_attr_leaf_entry_t)
+ xfs_attr3_leaf_hdr_size(leaf);
for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; i++) {
if (ichdr->freemap[i].base == tmp) {
ichdr->freemap[i].base += sizeof(xfs_attr_leaf_entry_t);
ichdr->freemap[i].size -= sizeof(xfs_attr_leaf_entry_t);
}
}
be16_add_cpu(&hdr->usedbytes, xfs_attr_leaf_entsize(leaf, args->index));
xfs_trans_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, hdr, sizeof(*hdr)));
return(0);
ichdr->usedbytes += xfs_attr_leaf_entsize(leaf, args->index);
return 0;
}
/*
* Garbage collect a leaf attribute list block by copying it to a new buffer.
*/
STATIC void
xfs_attr_leaf_compact(
xfs_attr3_leaf_compact(
struct xfs_da_args *args,
struct xfs_attr3_icleaf_hdr *ichdr_d,
struct xfs_buf *bp)
{
xfs_attr_leafblock_t *leaf_s, *leaf_d;
xfs_attr_leaf_hdr_t *hdr_s, *hdr_d;
struct xfs_attr3_icleaf_hdr ichdr_s;
struct xfs_trans *trans = args->trans;
struct xfs_mount *mp = trans->t_mountp;
char *tmpbuffer;
......@@ -1286,33 +1456,68 @@ xfs_attr_leaf_compact(
*/
leaf_s = (xfs_attr_leafblock_t *)tmpbuffer;
leaf_d = bp->b_addr;
hdr_s = &leaf_s->hdr;
hdr_d = &leaf_d->hdr;
hdr_d->info = hdr_s->info; /* struct copy */
hdr_d->firstused = cpu_to_be16(XFS_LBSIZE(mp));
/* handle truncation gracefully */
if (!hdr_d->firstused) {
hdr_d->firstused = cpu_to_be16(
XFS_LBSIZE(mp) - XFS_ATTR_LEAF_NAME_ALIGN);
}
hdr_d->usedbytes = 0;
hdr_d->count = 0;
hdr_d->holes = 0;
hdr_d->freemap[0].base = cpu_to_be16(sizeof(xfs_attr_leaf_hdr_t));
hdr_d->freemap[0].size = cpu_to_be16(be16_to_cpu(hdr_d->firstused) -
sizeof(xfs_attr_leaf_hdr_t));
ichdr_s = *ichdr_d; /* struct copy */
ichdr_d->firstused = XFS_LBSIZE(mp);
ichdr_d->usedbytes = 0;
ichdr_d->count = 0;
ichdr_d->holes = 0;
ichdr_d->freemap[0].base = xfs_attr3_leaf_hdr_size(leaf_s);
ichdr_d->freemap[0].size = ichdr_d->firstused - ichdr_d->freemap[0].base;
/*
* Copy all entry's in the same (sorted) order,
* but allocate name/value pairs packed and in sequence.
*/
xfs_attr_leaf_moveents(leaf_s, 0, leaf_d, 0,
be16_to_cpu(hdr_s->count), mp);
xfs_attr3_leaf_moveents(leaf_s, &ichdr_s, 0, leaf_d, ichdr_d, 0,
ichdr_s.count, mp);
/*
* this logs the entire buffer, but the caller must write the header
* back to the buffer when it is finished modifying it.
*/
xfs_trans_log_buf(trans, bp, 0, XFS_LBSIZE(mp) - 1);
kmem_free(tmpbuffer);
}
/*
* Compare two leaf blocks "order".
* Return 0 unless leaf2 should go before leaf1.
*/
static int
xfs_attr3_leaf_order(
struct xfs_buf *leaf1_bp,
struct xfs_attr3_icleaf_hdr *leaf1hdr,
struct xfs_buf *leaf2_bp,
struct xfs_attr3_icleaf_hdr *leaf2hdr)
{
struct xfs_attr_leaf_entry *entries1;
struct xfs_attr_leaf_entry *entries2;
entries1 = xfs_attr3_leaf_entryp(leaf1_bp->b_addr);
entries2 = xfs_attr3_leaf_entryp(leaf2_bp->b_addr);
if (leaf1hdr->count > 0 && leaf2hdr->count > 0 &&
((be32_to_cpu(entries2[0].hashval) <
be32_to_cpu(entries1[0].hashval)) ||
(be32_to_cpu(entries2[leaf2hdr->count - 1].hashval) <
be32_to_cpu(entries1[leaf1hdr->count - 1].hashval)))) {
return 1;
}
return 0;
}
int
xfs_attr_leaf_order(
struct xfs_buf *leaf1_bp,
struct xfs_buf *leaf2_bp)
{
struct xfs_attr3_icleaf_hdr ichdr1;
struct xfs_attr3_icleaf_hdr ichdr2;
xfs_attr3_leaf_hdr_from_disk(&ichdr1, leaf1_bp->b_addr);
xfs_attr3_leaf_hdr_from_disk(&ichdr2, leaf2_bp->b_addr);
return xfs_attr3_leaf_order(leaf1_bp, &ichdr1, leaf2_bp, &ichdr2);
}
/*
* Redistribute the attribute list entries between two leaf nodes,
* taking into account the size of the new entry.
......@@ -1326,14 +1531,23 @@ xfs_attr_leaf_compact(
* the "new" and "old" values can end up in different blocks.
*/
STATIC void
xfs_attr_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
xfs_da_state_blk_t *blk2)
xfs_attr3_leaf_rebalance(
struct xfs_da_state *state,
struct xfs_da_state_blk *blk1,
struct xfs_da_state_blk *blk2)
{
xfs_da_args_t *args;
xfs_da_state_blk_t *tmp_blk;
xfs_attr_leafblock_t *leaf1, *leaf2;
xfs_attr_leaf_hdr_t *hdr1, *hdr2;
int count, totallen, max, space, swap;
struct xfs_da_args *args;
struct xfs_attr_leafblock *leaf1;
struct xfs_attr_leafblock *leaf2;
struct xfs_attr3_icleaf_hdr ichdr1;
struct xfs_attr3_icleaf_hdr ichdr2;
struct xfs_attr_leaf_entry *entries1;
struct xfs_attr_leaf_entry *entries2;
int count;
int totallen;
int max;
int space;
int swap;
/*
* Set up environment.
......@@ -1342,9 +1556,9 @@ xfs_attr_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
ASSERT(blk2->magic == XFS_ATTR_LEAF_MAGIC);
leaf1 = blk1->bp->b_addr;
leaf2 = blk2->bp->b_addr;
ASSERT(leaf1->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
ASSERT(leaf2->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
ASSERT(leaf2->hdr.count == 0);
xfs_attr3_leaf_hdr_from_disk(&ichdr1, leaf1);
xfs_attr3_leaf_hdr_from_disk(&ichdr2, leaf2);
ASSERT(ichdr2.count == 0);
args = state->args;
trace_xfs_attr_leaf_rebalance(args);
......@@ -1356,16 +1570,23 @@ xfs_attr_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
* second block, this code should never set "swap".
*/
swap = 0;
if (xfs_attr_leaf_order(blk1->bp, blk2->bp)) {
if (xfs_attr3_leaf_order(blk1->bp, &ichdr1, blk2->bp, &ichdr2)) {
struct xfs_da_state_blk *tmp_blk;
struct xfs_attr3_icleaf_hdr tmp_ichdr;
tmp_blk = blk1;
blk1 = blk2;
blk2 = tmp_blk;
/* struct copies to swap them rather than reconverting */
tmp_ichdr = ichdr1;
ichdr1 = ichdr2;
ichdr2 = tmp_ichdr;
leaf1 = blk1->bp->b_addr;
leaf2 = blk2->bp->b_addr;
swap = 1;
}
hdr1 = &leaf1->hdr;
hdr2 = &leaf2->hdr;
/*
* Examine entries until we reduce the absolute difference in
......@@ -1375,41 +1596,39 @@ xfs_attr_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
* "inleaf" is true if the new entry should be inserted into blk1.
* If "swap" is also true, then reverse the sense of "inleaf".
*/
state->inleaf = xfs_attr_leaf_figure_balance(state, blk1, blk2,
&count, &totallen);
state->inleaf = xfs_attr3_leaf_figure_balance(state, blk1, &ichdr1,
blk2, &ichdr2,
&count, &totallen);
if (swap)
state->inleaf = !state->inleaf;
/*
* Move any entries required from leaf to leaf:
*/
if (count < be16_to_cpu(hdr1->count)) {
if (count < ichdr1.count) {
/*
* Figure the total bytes to be added to the destination leaf.
*/
/* number entries being moved */
count = be16_to_cpu(hdr1->count) - count;
space = be16_to_cpu(hdr1->usedbytes) - totallen;
count = ichdr1.count - count;
space = ichdr1.usedbytes - totallen;
space += count * sizeof(xfs_attr_leaf_entry_t);
/*
* leaf2 is the destination, compact it if it looks tight.
*/
max = be16_to_cpu(hdr2->firstused)
- sizeof(xfs_attr_leaf_hdr_t);
max -= be16_to_cpu(hdr2->count) * sizeof(xfs_attr_leaf_entry_t);
max = ichdr2.firstused - xfs_attr3_leaf_hdr_size(leaf1);
max -= ichdr2.count * sizeof(xfs_attr_leaf_entry_t);
if (space > max)
xfs_attr_leaf_compact(args, blk2->bp);
xfs_attr3_leaf_compact(args, &ichdr2, blk2->bp);
/*
* Move high entries from leaf1 to low end of leaf2.
*/
xfs_attr_leaf_moveents(leaf1, be16_to_cpu(hdr1->count) - count,
leaf2, 0, count, state->mp);
xfs_attr3_leaf_moveents(leaf1, &ichdr1, ichdr1.count - count,
leaf2, &ichdr2, 0, count, state->mp);
xfs_trans_log_buf(args->trans, blk1->bp, 0, state->blocksize-1);
xfs_trans_log_buf(args->trans, blk2->bp, 0, state->blocksize-1);
} else if (count > be16_to_cpu(hdr1->count)) {
} else if (count > ichdr1.count) {
/*
* I assert that since all callers pass in an empty
* second buffer, this code should never execute.
......@@ -1420,36 +1639,37 @@ xfs_attr_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
* Figure the total bytes to be added to the destination leaf.
*/
/* number entries being moved */
count -= be16_to_cpu(hdr1->count);
space = totallen - be16_to_cpu(hdr1->usedbytes);
count -= ichdr1.count;
space = totallen - ichdr1.usedbytes;
space += count * sizeof(xfs_attr_leaf_entry_t);
/*
* leaf1 is the destination, compact it if it looks tight.
*/
max = be16_to_cpu(hdr1->firstused)
- sizeof(xfs_attr_leaf_hdr_t);
max -= be16_to_cpu(hdr1->count) * sizeof(xfs_attr_leaf_entry_t);
max = ichdr1.firstused - xfs_attr3_leaf_hdr_size(leaf1);
max -= ichdr1.count * sizeof(xfs_attr_leaf_entry_t);
if (space > max)
xfs_attr_leaf_compact(args, blk1->bp);
xfs_attr3_leaf_compact(args, &ichdr1, blk1->bp);
/*
* Move low entries from leaf2 to high end of leaf1.
*/
xfs_attr_leaf_moveents(leaf2, 0, leaf1,
be16_to_cpu(hdr1->count), count, state->mp);
xfs_trans_log_buf(args->trans, blk1->bp, 0, state->blocksize-1);
xfs_trans_log_buf(args->trans, blk2->bp, 0, state->blocksize-1);
xfs_attr3_leaf_moveents(leaf2, &ichdr2, 0, leaf1, &ichdr1,
ichdr1.count, count, state->mp);
}
xfs_attr3_leaf_hdr_to_disk(leaf1, &ichdr1);
xfs_attr3_leaf_hdr_to_disk(leaf2, &ichdr2);
xfs_trans_log_buf(args->trans, blk1->bp, 0, state->blocksize-1);
xfs_trans_log_buf(args->trans, blk2->bp, 0, state->blocksize-1);
/*
* Copy out last hashval in each block for B-tree code.
*/
blk1->hashval = be32_to_cpu(
leaf1->entries[be16_to_cpu(leaf1->hdr.count)-1].hashval);
blk2->hashval = be32_to_cpu(
leaf2->entries[be16_to_cpu(leaf2->hdr.count)-1].hashval);
entries1 = xfs_attr3_leaf_entryp(leaf1);
entries2 = xfs_attr3_leaf_entryp(leaf2);
blk1->hashval = be32_to_cpu(entries1[ichdr1.count - 1].hashval);
blk2->hashval = be32_to_cpu(entries2[ichdr2.count - 1].hashval);
/*
* Adjust the expected index for insertion.
......@@ -1463,12 +1683,12 @@ xfs_attr_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
* inserting. The index/blkno fields refer to the "old" entry,
* while the index2/blkno2 fields refer to the "new" entry.
*/
if (blk1->index > be16_to_cpu(leaf1->hdr.count)) {
if (blk1->index > ichdr1.count) {
ASSERT(state->inleaf == 0);
blk2->index = blk1->index - be16_to_cpu(leaf1->hdr.count);
blk2->index = blk1->index - ichdr1.count;
args->index = args->index2 = blk2->index;
args->blkno = args->blkno2 = blk2->blkno;
} else if (blk1->index == be16_to_cpu(leaf1->hdr.count)) {
} else if (blk1->index == ichdr1.count) {
if (state->inleaf) {
args->index = blk1->index;
args->blkno = blk1->blkno;
......@@ -1480,8 +1700,7 @@ xfs_attr_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
* is already stored in blkno2/index2, so don't
* overwrite it overwise we corrupt the tree.
*/
blk2->index = blk1->index
- be16_to_cpu(leaf1->hdr.count);
blk2->index = blk1->index - ichdr1.count;
args->index = blk2->index;
args->blkno = blk2->blkno;
if (!state->extravalid) {
......@@ -1509,42 +1728,40 @@ xfs_attr_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
* GROT: Do a double-split for this case?
*/
STATIC int
xfs_attr_leaf_figure_balance(xfs_da_state_t *state,
xfs_da_state_blk_t *blk1,
xfs_da_state_blk_t *blk2,
int *countarg, int *usedbytesarg)
xfs_attr3_leaf_figure_balance(
struct xfs_da_state *state,
struct xfs_da_state_blk *blk1,
struct xfs_attr3_icleaf_hdr *ichdr1,
struct xfs_da_state_blk *blk2,
struct xfs_attr3_icleaf_hdr *ichdr2,
int *countarg,
int *usedbytesarg)
{
xfs_attr_leafblock_t *leaf1, *leaf2;
xfs_attr_leaf_hdr_t *hdr1, *hdr2;
xfs_attr_leaf_entry_t *entry;
int count, max, index, totallen, half;
int lastdelta, foundit, tmp;
/*
* Set up environment.
*/
leaf1 = blk1->bp->b_addr;
leaf2 = blk2->bp->b_addr;
hdr1 = &leaf1->hdr;
hdr2 = &leaf2->hdr;
foundit = 0;
totallen = 0;
struct xfs_attr_leafblock *leaf1 = blk1->bp->b_addr;
struct xfs_attr_leafblock *leaf2 = blk2->bp->b_addr;
struct xfs_attr_leaf_entry *entry;
int count;
int max;
int index;
int totallen = 0;
int half;
int lastdelta;
int foundit = 0;
int tmp;
/*
* Examine entries until we reduce the absolute difference in
* byte usage between the two blocks to a minimum.
*/
max = be16_to_cpu(hdr1->count) + be16_to_cpu(hdr2->count);
half = (max+1) * sizeof(*entry);
half += be16_to_cpu(hdr1->usedbytes) +
be16_to_cpu(hdr2->usedbytes) +
xfs_attr_leaf_newentsize(
state->args->namelen,
state->args->valuelen,
state->blocksize, NULL);
max = ichdr1->count + ichdr2->count;
half = (max + 1) * sizeof(*entry);
half += ichdr1->usedbytes + ichdr2->usedbytes +
xfs_attr_leaf_newentsize(state->args->namelen,
state->args->valuelen,
state->blocksize, NULL);
half /= 2;
lastdelta = state->blocksize;
entry = &leaf1->entries[0];
entry = xfs_attr3_leaf_entryp(leaf1);
for (count = index = 0; count < max; entry++, index++, count++) {
#define XFS_ATTR_ABS(A) (((A) < 0) ? -(A) : (A))
......@@ -1567,9 +1784,9 @@ xfs_attr_leaf_figure_balance(xfs_da_state_t *state,
/*
* Wrap around into the second block if necessary.
*/
if (count == be16_to_cpu(hdr1->count)) {
if (count == ichdr1->count) {
leaf1 = leaf2;
entry = &leaf1->entries[0];
entry = xfs_attr3_leaf_entryp(leaf1);
index = 0;
}
......@@ -1600,7 +1817,7 @@ xfs_attr_leaf_figure_balance(xfs_da_state_t *state,
*countarg = count;
*usedbytesarg = totallen;
return(foundit);
return foundit;
}
/*========================================================================
......@@ -1619,14 +1836,20 @@ xfs_attr_leaf_figure_balance(xfs_da_state_t *state,
* GROT: allow for INCOMPLETE entries in calculation.
*/
int
xfs_attr_leaf_toosmall(xfs_da_state_t *state, int *action)
xfs_attr3_leaf_toosmall(
struct xfs_da_state *state,
int *action)
{
xfs_attr_leafblock_t *leaf;
xfs_da_state_blk_t *blk;
xfs_da_blkinfo_t *info;
int count, bytes, forward, error, retval, i;
xfs_dablk_t blkno;
struct xfs_buf *bp;
struct xfs_attr_leafblock *leaf;
struct xfs_da_state_blk *blk;
struct xfs_attr3_icleaf_hdr ichdr;
struct xfs_buf *bp;
xfs_dablk_t blkno;
int bytes;
int forward;
int error;
int retval;
int i;
trace_xfs_attr_leaf_toosmall(state->args);
......@@ -1636,13 +1859,11 @@ xfs_attr_leaf_toosmall(xfs_da_state_t *state, int *action)
* to coalesce with a sibling.
*/
blk = &state->path.blk[ state->path.active-1 ];
info = blk->bp->b_addr;
ASSERT(info->magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
leaf = (xfs_attr_leafblock_t *)info;
count = be16_to_cpu(leaf->hdr.count);
bytes = sizeof(xfs_attr_leaf_hdr_t) +
count * sizeof(xfs_attr_leaf_entry_t) +
be16_to_cpu(leaf->hdr.usedbytes);
leaf = blk->bp->b_addr;
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
bytes = xfs_attr3_leaf_hdr_size(leaf) +
ichdr.count * sizeof(xfs_attr_leaf_entry_t) +
ichdr.usedbytes;
if (bytes > (state->blocksize >> 1)) {
*action = 0; /* blk over 50%, don't try to join */
return(0);
......@@ -1654,12 +1875,12 @@ xfs_attr_leaf_toosmall(xfs_da_state_t *state, int *action)
* coalesce it with a sibling block. We choose (arbitrarily)
* to merge with the forward block unless it is NULL.
*/
if (count == 0) {
if (ichdr.count == 0) {
/*
* Make altpath point to the block we want to keep and
* path point to the block we want to drop (this one).
*/
forward = (info->forw != 0);
forward = (ichdr.forw != 0);
memcpy(&state->altpath, &state->path, sizeof(state->path));
error = xfs_da3_path_shift(state, &state->altpath, forward,
0, &retval);
......@@ -1670,7 +1891,7 @@ xfs_attr_leaf_toosmall(xfs_da_state_t *state, int *action)
} else {
*action = 2;
}
return(0);
return 0;
}
/*
......@@ -1681,28 +1902,28 @@ xfs_attr_leaf_toosmall(xfs_da_state_t *state, int *action)
* to shrink an attribute list over time.
*/
/* start with smaller blk num */
forward = (be32_to_cpu(info->forw) < be32_to_cpu(info->back));
forward = ichdr.forw < ichdr.back;
for (i = 0; i < 2; forward = !forward, i++) {
struct xfs_attr3_icleaf_hdr ichdr2;
if (forward)
blkno = be32_to_cpu(info->forw);
blkno = ichdr.forw;
else
blkno = be32_to_cpu(info->back);
blkno = ichdr.back;
if (blkno == 0)
continue;
error = xfs_attr_leaf_read(state->args->trans, state->args->dp,
error = xfs_attr3_leaf_read(state->args->trans, state->args->dp,
blkno, -1, &bp);
if (error)
return(error);
leaf = (xfs_attr_leafblock_t *)info;
count = be16_to_cpu(leaf->hdr.count);
bytes = state->blocksize - (state->blocksize>>2);
bytes -= be16_to_cpu(leaf->hdr.usedbytes);
leaf = bp->b_addr;
count += be16_to_cpu(leaf->hdr.count);
bytes -= be16_to_cpu(leaf->hdr.usedbytes);
bytes -= count * sizeof(xfs_attr_leaf_entry_t);
bytes -= sizeof(xfs_attr_leaf_hdr_t);
xfs_attr3_leaf_hdr_from_disk(&ichdr2, bp->b_addr);
bytes = state->blocksize - (state->blocksize >> 2) -
ichdr.usedbytes - ichdr2.usedbytes -
((ichdr.count + ichdr2.count) *
sizeof(xfs_attr_leaf_entry_t)) -
xfs_attr3_leaf_hdr_size(leaf);
xfs_trans_brelse(state->args->trans, bp);
if (bytes >= 0)
break; /* fits with at least 25% to spare */
......@@ -1741,32 +1962,35 @@ xfs_attr_leaf_toosmall(xfs_da_state_t *state, int *action)
* If two leaves are 37% full, when combined they will leave 25% free.
*/
int
xfs_attr_leaf_remove(
struct xfs_buf *bp,
xfs_da_args_t *args)
xfs_attr3_leaf_remove(
struct xfs_buf *bp,
struct xfs_da_args *args)
{
xfs_attr_leafblock_t *leaf;
xfs_attr_leaf_hdr_t *hdr;
xfs_attr_leaf_map_t *map;
xfs_attr_leaf_entry_t *entry;
int before, after, smallest, entsize;
int tablesize, tmp, i;
xfs_mount_t *mp;
struct xfs_attr_leafblock *leaf;
struct xfs_attr3_icleaf_hdr ichdr;
struct xfs_attr_leaf_entry *entry;
struct xfs_mount *mp = args->trans->t_mountp;
int before;
int after;
int smallest;
int entsize;
int tablesize;
int tmp;
int i;
trace_xfs_attr_leaf_remove(args);
leaf = bp->b_addr;
ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
hdr = &leaf->hdr;
mp = args->trans->t_mountp;
ASSERT((be16_to_cpu(hdr->count) > 0)
&& (be16_to_cpu(hdr->count) < (XFS_LBSIZE(mp)/8)));
ASSERT((args->index >= 0)
&& (args->index < be16_to_cpu(hdr->count)));
ASSERT(be16_to_cpu(hdr->firstused) >=
((be16_to_cpu(hdr->count) * sizeof(*entry)) + sizeof(*hdr)));
entry = &leaf->entries[args->index];
ASSERT(be16_to_cpu(entry->nameidx) >= be16_to_cpu(hdr->firstused));
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
ASSERT(ichdr.count > 0 && ichdr.count < XFS_LBSIZE(mp) / 8);
ASSERT(args->index >= 0 && args->index < ichdr.count);
ASSERT(ichdr.firstused >= ichdr.count * sizeof(*entry) +
xfs_attr3_leaf_hdr_size(leaf));
entry = &xfs_attr3_leaf_entryp(leaf)[args->index];
ASSERT(be16_to_cpu(entry->nameidx) >= ichdr.firstused);
ASSERT(be16_to_cpu(entry->nameidx) < XFS_LBSIZE(mp));
/*
......@@ -1775,30 +1999,28 @@ xfs_attr_leaf_remove(
* find smallest free region in case we need to replace it,
* adjust any map that borders the entry table,
*/
tablesize = be16_to_cpu(hdr->count) * sizeof(xfs_attr_leaf_entry_t)
+ sizeof(xfs_attr_leaf_hdr_t);
map = &hdr->freemap[0];
tmp = be16_to_cpu(map->size);
tablesize = ichdr.count * sizeof(xfs_attr_leaf_entry_t)
+ xfs_attr3_leaf_hdr_size(leaf);
tmp = ichdr.freemap[0].size;
before = after = -1;
smallest = XFS_ATTR_LEAF_MAPSIZE - 1;
entsize = xfs_attr_leaf_entsize(leaf, args->index);
for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; map++, i++) {
ASSERT(be16_to_cpu(map->base) < XFS_LBSIZE(mp));
ASSERT(be16_to_cpu(map->size) < XFS_LBSIZE(mp));
if (be16_to_cpu(map->base) == tablesize) {
be16_add_cpu(&map->base,
-((int)sizeof(xfs_attr_leaf_entry_t)));
be16_add_cpu(&map->size, sizeof(xfs_attr_leaf_entry_t));
for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; i++) {
ASSERT(ichdr.freemap[i].base < XFS_LBSIZE(mp));
ASSERT(ichdr.freemap[i].size < XFS_LBSIZE(mp));
if (ichdr.freemap[i].base == tablesize) {
ichdr.freemap[i].base -= sizeof(xfs_attr_leaf_entry_t);
ichdr.freemap[i].size += sizeof(xfs_attr_leaf_entry_t);
}
if ((be16_to_cpu(map->base) + be16_to_cpu(map->size))
== be16_to_cpu(entry->nameidx)) {
if (ichdr.freemap[i].base + ichdr.freemap[i].size ==
be16_to_cpu(entry->nameidx)) {
before = i;
} else if (be16_to_cpu(map->base)
== (be16_to_cpu(entry->nameidx) + entsize)) {
} else if (ichdr.freemap[i].base ==
(be16_to_cpu(entry->nameidx) + entsize)) {
after = i;
} else if (be16_to_cpu(map->size) < tmp) {
tmp = be16_to_cpu(map->size);
} else if (ichdr.freemap[i].size < tmp) {
tmp = ichdr.freemap[i].size;
smallest = i;
}
}
......@@ -1809,36 +2031,30 @@ xfs_attr_leaf_remove(
*/
if ((before >= 0) || (after >= 0)) {
if ((before >= 0) && (after >= 0)) {
map = &hdr->freemap[before];
be16_add_cpu(&map->size, entsize);
be16_add_cpu(&map->size,
be16_to_cpu(hdr->freemap[after].size));
hdr->freemap[after].base = 0;
hdr->freemap[after].size = 0;
ichdr.freemap[before].size += entsize;
ichdr.freemap[before].size += ichdr.freemap[after].size;
ichdr.freemap[after].base = 0;
ichdr.freemap[after].size = 0;
} else if (before >= 0) {
map = &hdr->freemap[before];
be16_add_cpu(&map->size, entsize);
ichdr.freemap[before].size += entsize;
} else {
map = &hdr->freemap[after];
/* both on-disk, don't endian flip twice */
map->base = entry->nameidx;
be16_add_cpu(&map->size, entsize);
ichdr.freemap[after].base = be16_to_cpu(entry->nameidx);
ichdr.freemap[after].size += entsize;
}
} else {
/*
* Replace smallest region (if it is smaller than free'd entry)
*/
map = &hdr->freemap[smallest];
if (be16_to_cpu(map->size) < entsize) {
map->base = cpu_to_be16(be16_to_cpu(entry->nameidx));
map->size = cpu_to_be16(entsize);
if (ichdr.freemap[smallest].size < entsize) {
ichdr.freemap[smallest].base = be16_to_cpu(entry->nameidx);
ichdr.freemap[smallest].size = entsize;
}
}
/*
* Did we remove the first entry?
*/
if (be16_to_cpu(entry->nameidx) == be16_to_cpu(hdr->firstused))
if (be16_to_cpu(entry->nameidx) == ichdr.firstused)
smallest = 1;
else
smallest = 0;
......@@ -1846,20 +2062,20 @@ xfs_attr_leaf_remove(
/*
* Compress the remaining entries and zero out the removed stuff.
*/
memset(xfs_attr_leaf_name(leaf, args->index), 0, entsize);
be16_add_cpu(&hdr->usedbytes, -entsize);
memset(xfs_attr3_leaf_name(leaf, args->index), 0, entsize);
ichdr.usedbytes -= entsize;
xfs_trans_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, xfs_attr_leaf_name(leaf, args->index),
XFS_DA_LOGRANGE(leaf, xfs_attr3_leaf_name(leaf, args->index),
entsize));
tmp = (be16_to_cpu(hdr->count) - args->index)
* sizeof(xfs_attr_leaf_entry_t);
memmove((char *)entry, (char *)(entry+1), tmp);
be16_add_cpu(&hdr->count, -1);
tmp = (ichdr.count - args->index) * sizeof(xfs_attr_leaf_entry_t);
memmove(entry, entry + 1, tmp);
ichdr.count--;
xfs_trans_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, entry, tmp + sizeof(*entry)));
entry = &leaf->entries[be16_to_cpu(hdr->count)];
memset((char *)entry, 0, sizeof(xfs_attr_leaf_entry_t));
XFS_DA_LOGRANGE(leaf, entry, tmp + sizeof(xfs_attr_leaf_entry_t)));
entry = &xfs_attr3_leaf_entryp(leaf)[ichdr.count];
memset(entry, 0, sizeof(xfs_attr_leaf_entry_t));
/*
* If we removed the first entry, re-find the first used byte
......@@ -1869,130 +2085,130 @@ xfs_attr_leaf_remove(
*/
if (smallest) {
tmp = XFS_LBSIZE(mp);
entry = &leaf->entries[0];
for (i = be16_to_cpu(hdr->count)-1; i >= 0; entry++, i--) {
ASSERT(be16_to_cpu(entry->nameidx) >=
be16_to_cpu(hdr->firstused));
entry = xfs_attr3_leaf_entryp(leaf);
for (i = ichdr.count - 1; i >= 0; entry++, i--) {
ASSERT(be16_to_cpu(entry->nameidx) >= ichdr.firstused);
ASSERT(be16_to_cpu(entry->nameidx) < XFS_LBSIZE(mp));
if (be16_to_cpu(entry->nameidx) < tmp)
tmp = be16_to_cpu(entry->nameidx);
}
hdr->firstused = cpu_to_be16(tmp);
if (!hdr->firstused) {
hdr->firstused = cpu_to_be16(
tmp - XFS_ATTR_LEAF_NAME_ALIGN);
}
ichdr.firstused = tmp;
if (!ichdr.firstused)
ichdr.firstused = tmp - XFS_ATTR_LEAF_NAME_ALIGN;
} else {
hdr->holes = 1; /* mark as needing compaction */
ichdr.holes = 1; /* mark as needing compaction */
}
xfs_attr3_leaf_hdr_to_disk(leaf, &ichdr);
xfs_trans_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, hdr, sizeof(*hdr)));
XFS_DA_LOGRANGE(leaf, &leaf->hdr,
xfs_attr3_leaf_hdr_size(leaf)));
/*
* Check if leaf is less than 50% full, caller may want to
* "join" the leaf with a sibling if so.
*/
tmp = sizeof(xfs_attr_leaf_hdr_t);
tmp += be16_to_cpu(leaf->hdr.count) * sizeof(xfs_attr_leaf_entry_t);
tmp += be16_to_cpu(leaf->hdr.usedbytes);
return(tmp < mp->m_attr_magicpct); /* leaf is < 37% full */
tmp = ichdr.usedbytes + xfs_attr3_leaf_hdr_size(leaf) +
ichdr.count * sizeof(xfs_attr_leaf_entry_t);
return tmp < mp->m_attr_magicpct; /* leaf is < 37% full */
}
/*
* Move all the attribute list entries from drop_leaf into save_leaf.
*/
void
xfs_attr_leaf_unbalance(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
xfs_da_state_blk_t *save_blk)
xfs_attr3_leaf_unbalance(
struct xfs_da_state *state,
struct xfs_da_state_blk *drop_blk,
struct xfs_da_state_blk *save_blk)
{
xfs_attr_leafblock_t *drop_leaf, *save_leaf, *tmp_leaf;
xfs_attr_leaf_hdr_t *drop_hdr, *save_hdr, *tmp_hdr;
xfs_mount_t *mp;
char *tmpbuffer;
struct xfs_attr_leafblock *drop_leaf = drop_blk->bp->b_addr;
struct xfs_attr_leafblock *save_leaf = save_blk->bp->b_addr;
struct xfs_attr3_icleaf_hdr drophdr;
struct xfs_attr3_icleaf_hdr savehdr;
struct xfs_attr_leaf_entry *entry;
struct xfs_mount *mp = state->mp;
trace_xfs_attr_leaf_unbalance(state->args);
/*
* Set up environment.
*/
mp = state->mp;
ASSERT(drop_blk->magic == XFS_ATTR_LEAF_MAGIC);
ASSERT(save_blk->magic == XFS_ATTR_LEAF_MAGIC);
drop_leaf = drop_blk->bp->b_addr;
save_leaf = save_blk->bp->b_addr;
ASSERT(drop_leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
ASSERT(save_leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
drop_hdr = &drop_leaf->hdr;
save_hdr = &save_leaf->hdr;
xfs_attr3_leaf_hdr_from_disk(&drophdr, drop_leaf);
xfs_attr3_leaf_hdr_from_disk(&savehdr, save_leaf);
entry = xfs_attr3_leaf_entryp(drop_leaf);
/*
* Save last hashval from dying block for later Btree fixup.
*/
drop_blk->hashval = be32_to_cpu(
drop_leaf->entries[be16_to_cpu(drop_leaf->hdr.count)-1].hashval);
drop_blk->hashval = be32_to_cpu(entry[drophdr.count - 1].hashval);
/*
* Check if we need a temp buffer, or can we do it in place.
* Note that we don't check "leaf" for holes because we will
* always be dropping it, toosmall() decided that for us already.
*/
if (save_hdr->holes == 0) {
if (savehdr.holes == 0) {
/*
* dest leaf has no holes, so we add there. May need
* to make some room in the entry array.
*/
if (xfs_attr_leaf_order(save_blk->bp, drop_blk->bp)) {
xfs_attr_leaf_moveents(drop_leaf, 0, save_leaf, 0,
be16_to_cpu(drop_hdr->count), mp);
if (xfs_attr3_leaf_order(save_blk->bp, &savehdr,
drop_blk->bp, &drophdr)) {
xfs_attr3_leaf_moveents(drop_leaf, &drophdr, 0,
save_leaf, &savehdr, 0,
drophdr.count, mp);
} else {
xfs_attr_leaf_moveents(drop_leaf, 0, save_leaf,
be16_to_cpu(save_hdr->count),
be16_to_cpu(drop_hdr->count), mp);
xfs_attr3_leaf_moveents(drop_leaf, &drophdr, 0,
save_leaf, &savehdr,
savehdr.count, drophdr.count, mp);
}
} else {
/*
* Destination has holes, so we make a temporary copy
* of the leaf and add them both to that.
*/
tmpbuffer = kmem_alloc(state->blocksize, KM_SLEEP);
ASSERT(tmpbuffer != NULL);
memset(tmpbuffer, 0, state->blocksize);
tmp_leaf = (xfs_attr_leafblock_t *)tmpbuffer;
tmp_hdr = &tmp_leaf->hdr;
tmp_hdr->info = save_hdr->info; /* struct copy */
tmp_hdr->count = 0;
tmp_hdr->firstused = cpu_to_be16(state->blocksize);
if (!tmp_hdr->firstused) {
tmp_hdr->firstused = cpu_to_be16(
state->blocksize - XFS_ATTR_LEAF_NAME_ALIGN);
}
tmp_hdr->usedbytes = 0;
if (xfs_attr_leaf_order(save_blk->bp, drop_blk->bp)) {
xfs_attr_leaf_moveents(drop_leaf, 0, tmp_leaf, 0,
be16_to_cpu(drop_hdr->count), mp);
xfs_attr_leaf_moveents(save_leaf, 0, tmp_leaf,
be16_to_cpu(tmp_leaf->hdr.count),
be16_to_cpu(save_hdr->count), mp);
struct xfs_attr_leafblock *tmp_leaf;
struct xfs_attr3_icleaf_hdr tmphdr;
tmp_leaf = kmem_alloc(state->blocksize, KM_SLEEP);
memset(tmp_leaf, 0, state->blocksize);
memset(&tmphdr, 0, sizeof(tmphdr));
tmphdr.magic = savehdr.magic;
tmphdr.forw = savehdr.forw;
tmphdr.back = savehdr.back;
tmphdr.firstused = state->blocksize;
if (xfs_attr3_leaf_order(save_blk->bp, &savehdr,
drop_blk->bp, &drophdr)) {
xfs_attr3_leaf_moveents(drop_leaf, &drophdr, 0,
tmp_leaf, &tmphdr, 0,
drophdr.count, mp);
xfs_attr3_leaf_moveents(save_leaf, &savehdr, 0,
tmp_leaf, &tmphdr, tmphdr.count,
savehdr.count, mp);
} else {
xfs_attr_leaf_moveents(save_leaf, 0, tmp_leaf, 0,
be16_to_cpu(save_hdr->count), mp);
xfs_attr_leaf_moveents(drop_leaf, 0, tmp_leaf,
be16_to_cpu(tmp_leaf->hdr.count),
be16_to_cpu(drop_hdr->count), mp);
xfs_attr3_leaf_moveents(save_leaf, &savehdr, 0,
tmp_leaf, &tmphdr, 0,
savehdr.count, mp);
xfs_attr3_leaf_moveents(drop_leaf, &drophdr, 0,
tmp_leaf, &tmphdr, tmphdr.count,
drophdr.count, mp);
}
memcpy((char *)save_leaf, (char *)tmp_leaf, state->blocksize);
kmem_free(tmpbuffer);
memcpy(save_leaf, tmp_leaf, state->blocksize);
savehdr = tmphdr; /* struct copy */
kmem_free(tmp_leaf);
}
xfs_attr3_leaf_hdr_to_disk(save_leaf, &savehdr);
xfs_trans_log_buf(state->args->trans, save_blk->bp, 0,
state->blocksize - 1);
/*
* Copy out last hashval in each block for B-tree code.
*/
save_blk->hashval = be32_to_cpu(
save_leaf->entries[be16_to_cpu(save_leaf->hdr.count)-1].hashval);
entry = xfs_attr3_leaf_entryp(save_leaf);
save_blk->hashval = be32_to_cpu(entry[savehdr.count - 1].hashval);
}
/*========================================================================
......@@ -2013,31 +2229,33 @@ xfs_attr_leaf_unbalance(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
* Don't change the args->value unless we find the attribute.
*/
int
xfs_attr_leaf_lookup_int(
struct xfs_buf *bp,
xfs_da_args_t *args)
xfs_attr3_leaf_lookup_int(
struct xfs_buf *bp,
struct xfs_da_args *args)
{
xfs_attr_leafblock_t *leaf;
xfs_attr_leaf_entry_t *entry;
xfs_attr_leaf_name_local_t *name_loc;
xfs_attr_leaf_name_remote_t *name_rmt;
int probe, span;
xfs_dahash_t hashval;
struct xfs_attr_leafblock *leaf;
struct xfs_attr3_icleaf_hdr ichdr;
struct xfs_attr_leaf_entry *entry;
struct xfs_attr_leaf_entry *entries;
struct xfs_attr_leaf_name_local *name_loc;
struct xfs_attr_leaf_name_remote *name_rmt;
xfs_dahash_t hashval;
int probe;
int span;
trace_xfs_attr_leaf_lookup(args);
leaf = bp->b_addr;
ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
ASSERT(be16_to_cpu(leaf->hdr.count)
< (XFS_LBSIZE(args->dp->i_mount)/8));
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
entries = xfs_attr3_leaf_entryp(leaf);
ASSERT(ichdr.count < XFS_LBSIZE(args->dp->i_mount) / 8);
/*
* Binary search. (note: small blocks will skip this loop)
*/
hashval = args->hashval;
probe = span = be16_to_cpu(leaf->hdr.count) / 2;
for (entry = &leaf->entries[probe]; span > 4;
entry = &leaf->entries[probe]) {
probe = span = ichdr.count / 2;
for (entry = &entries[probe]; span > 4; entry = &entries[probe]) {
span /= 2;
if (be32_to_cpu(entry->hashval) < hashval)
probe += span;
......@@ -2046,35 +2264,31 @@ xfs_attr_leaf_lookup_int(
else
break;
}
ASSERT((probe >= 0) &&
(!leaf->hdr.count
|| (probe < be16_to_cpu(leaf->hdr.count))));
ASSERT((span <= 4) || (be32_to_cpu(entry->hashval) == hashval));
ASSERT(probe >= 0 && (!ichdr.count || probe < ichdr.count));
ASSERT(span <= 4 || be32_to_cpu(entry->hashval) == hashval);
/*
* Since we may have duplicate hashval's, find the first matching
* hashval in the leaf.
*/
while ((probe > 0) && (be32_to_cpu(entry->hashval) >= hashval)) {
while (probe > 0 && be32_to_cpu(entry->hashval) >= hashval) {
entry--;
probe--;
}
while ((probe < be16_to_cpu(leaf->hdr.count)) &&
(be32_to_cpu(entry->hashval) < hashval)) {
while (probe < ichdr.count &&
be32_to_cpu(entry->hashval) < hashval) {
entry++;
probe++;
}
if ((probe == be16_to_cpu(leaf->hdr.count)) ||
(be32_to_cpu(entry->hashval) != hashval)) {
if (probe == ichdr.count || be32_to_cpu(entry->hashval) != hashval) {
args->index = probe;
return(XFS_ERROR(ENOATTR));
return XFS_ERROR(ENOATTR);
}
/*
* Duplicate keys may be present, so search all of them for a match.
*/
for ( ; (probe < be16_to_cpu(leaf->hdr.count)) &&
(be32_to_cpu(entry->hashval) == hashval);
for (; probe < ichdr.count && (be32_to_cpu(entry->hashval) == hashval);
entry++, probe++) {
/*
* GROT: Add code to remove incomplete entries.
......@@ -2088,21 +2302,22 @@ xfs_attr_leaf_lookup_int(
continue;
}
if (entry->flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr_leaf_name_local(leaf, probe);
name_loc = xfs_attr3_leaf_name_local(leaf, probe);
if (name_loc->namelen != args->namelen)
continue;
if (memcmp(args->name, (char *)name_loc->nameval, args->namelen) != 0)
if (memcmp(args->name, name_loc->nameval,
args->namelen) != 0)
continue;
if (!xfs_attr_namesp_match(args->flags, entry->flags))
continue;
args->index = probe;
return(XFS_ERROR(EEXIST));
return XFS_ERROR(EEXIST);
} else {
name_rmt = xfs_attr_leaf_name_remote(leaf, probe);
name_rmt = xfs_attr3_leaf_name_remote(leaf, probe);
if (name_rmt->namelen != args->namelen)
continue;
if (memcmp(args->name, (char *)name_rmt->name,
args->namelen) != 0)
if (memcmp(args->name, name_rmt->name,
args->namelen) != 0)
continue;
if (!xfs_attr_namesp_match(args->flags, entry->flags))
continue;
......@@ -2110,11 +2325,11 @@ xfs_attr_leaf_lookup_int(
args->rmtblkno = be32_to_cpu(name_rmt->valueblk);
args->rmtblkcnt = XFS_B_TO_FSB(args->dp->i_mount,
be32_to_cpu(name_rmt->valuelen));
return(XFS_ERROR(EEXIST));
return XFS_ERROR(EEXIST);
}
}
args->index = probe;
return(XFS_ERROR(ENOATTR));
return XFS_ERROR(ENOATTR);
}
/*
......@@ -2122,40 +2337,40 @@ xfs_attr_leaf_lookup_int(
* list structure.
*/
int
xfs_attr_leaf_getvalue(
struct xfs_buf *bp,
xfs_da_args_t *args)
xfs_attr3_leaf_getvalue(
struct xfs_buf *bp,
struct xfs_da_args *args)
{
int valuelen;
xfs_attr_leafblock_t *leaf;
xfs_attr_leaf_entry_t *entry;
xfs_attr_leaf_name_local_t *name_loc;
xfs_attr_leaf_name_remote_t *name_rmt;
struct xfs_attr_leafblock *leaf;
struct xfs_attr3_icleaf_hdr ichdr;
struct xfs_attr_leaf_entry *entry;
struct xfs_attr_leaf_name_local *name_loc;
struct xfs_attr_leaf_name_remote *name_rmt;
int valuelen;
leaf = bp->b_addr;
ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
ASSERT(be16_to_cpu(leaf->hdr.count)
< (XFS_LBSIZE(args->dp->i_mount)/8));
ASSERT(args->index < be16_to_cpu(leaf->hdr.count));
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
ASSERT(ichdr.count < XFS_LBSIZE(args->dp->i_mount) / 8);
ASSERT(args->index < ichdr.count);
entry = &leaf->entries[args->index];
entry = &xfs_attr3_leaf_entryp(leaf)[args->index];
if (entry->flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr_leaf_name_local(leaf, args->index);
name_loc = xfs_attr3_leaf_name_local(leaf, args->index);
ASSERT(name_loc->namelen == args->namelen);
ASSERT(memcmp(args->name, name_loc->nameval, args->namelen) == 0);
valuelen = be16_to_cpu(name_loc->valuelen);
if (args->flags & ATTR_KERNOVAL) {
args->valuelen = valuelen;
return(0);
return 0;
}
if (args->valuelen < valuelen) {
args->valuelen = valuelen;
return(XFS_ERROR(ERANGE));
return XFS_ERROR(ERANGE);
}
args->valuelen = valuelen;
memcpy(args->value, &name_loc->nameval[args->namelen], valuelen);
} else {
name_rmt = xfs_attr_leaf_name_remote(leaf, args->index);
name_rmt = xfs_attr3_leaf_name_remote(leaf, args->index);
ASSERT(name_rmt->namelen == args->namelen);
ASSERT(memcmp(args->name, name_rmt->name, args->namelen) == 0);
valuelen = be32_to_cpu(name_rmt->valuelen);
......@@ -2163,15 +2378,15 @@ xfs_attr_leaf_getvalue(
args->rmtblkcnt = XFS_B_TO_FSB(args->dp->i_mount, valuelen);
if (args->flags & ATTR_KERNOVAL) {
args->valuelen = valuelen;
return(0);
return 0;
}
if (args->valuelen < valuelen) {
args->valuelen = valuelen;
return(XFS_ERROR(ERANGE));
return XFS_ERROR(ERANGE);
}
args->valuelen = valuelen;
}
return(0);
return 0;
}
/*========================================================================
......@@ -2184,13 +2399,21 @@ xfs_attr_leaf_getvalue(
*/
/*ARGSUSED*/
STATIC void
xfs_attr_leaf_moveents(xfs_attr_leafblock_t *leaf_s, int start_s,
xfs_attr_leafblock_t *leaf_d, int start_d,
int count, xfs_mount_t *mp)
xfs_attr3_leaf_moveents(
struct xfs_attr_leafblock *leaf_s,
struct xfs_attr3_icleaf_hdr *ichdr_s,
int start_s,
struct xfs_attr_leafblock *leaf_d,
struct xfs_attr3_icleaf_hdr *ichdr_d,
int start_d,
int count,
struct xfs_mount *mp)
{
xfs_attr_leaf_hdr_t *hdr_s, *hdr_d;
xfs_attr_leaf_entry_t *entry_s, *entry_d;
int desti, tmp, i;
struct xfs_attr_leaf_entry *entry_s;
struct xfs_attr_leaf_entry *entry_d;
int desti;
int tmp;
int i;
/*
* Check for nothing to do.
......@@ -2201,45 +2424,41 @@ xfs_attr_leaf_moveents(xfs_attr_leafblock_t *leaf_s, int start_s,
/*
* Set up environment.
*/
ASSERT(leaf_s->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
ASSERT(leaf_d->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
hdr_s = &leaf_s->hdr;
hdr_d = &leaf_d->hdr;
ASSERT((be16_to_cpu(hdr_s->count) > 0) &&
(be16_to_cpu(hdr_s->count) < (XFS_LBSIZE(mp)/8)));
ASSERT(be16_to_cpu(hdr_s->firstused) >=
((be16_to_cpu(hdr_s->count)
* sizeof(*entry_s))+sizeof(*hdr_s)));
ASSERT(be16_to_cpu(hdr_d->count) < (XFS_LBSIZE(mp)/8));
ASSERT(be16_to_cpu(hdr_d->firstused) >=
((be16_to_cpu(hdr_d->count)
* sizeof(*entry_d))+sizeof(*hdr_d)));
ASSERT(start_s < be16_to_cpu(hdr_s->count));
ASSERT(start_d <= be16_to_cpu(hdr_d->count));
ASSERT(count <= be16_to_cpu(hdr_s->count));
ASSERT(ichdr_s->magic == XFS_ATTR_LEAF_MAGIC ||
ichdr_s->magic == XFS_ATTR3_LEAF_MAGIC);
ASSERT(ichdr_s->magic == ichdr_d->magic);
ASSERT(ichdr_s->count > 0 && ichdr_s->count < XFS_LBSIZE(mp) / 8);
ASSERT(ichdr_s->firstused >= (ichdr_s->count * sizeof(*entry_s))
+ xfs_attr3_leaf_hdr_size(leaf_s));
ASSERT(ichdr_d->count < XFS_LBSIZE(mp) / 8);
ASSERT(ichdr_d->firstused >= (ichdr_d->count * sizeof(*entry_d))
+ xfs_attr3_leaf_hdr_size(leaf_d));
ASSERT(start_s < ichdr_s->count);
ASSERT(start_d <= ichdr_d->count);
ASSERT(count <= ichdr_s->count);
/*
* Move the entries in the destination leaf up to make a hole?
*/
if (start_d < be16_to_cpu(hdr_d->count)) {
tmp = be16_to_cpu(hdr_d->count) - start_d;
if (start_d < ichdr_d->count) {
tmp = ichdr_d->count - start_d;
tmp *= sizeof(xfs_attr_leaf_entry_t);
entry_s = &leaf_d->entries[start_d];
entry_d = &leaf_d->entries[start_d + count];
memmove((char *)entry_d, (char *)entry_s, tmp);
entry_s = &xfs_attr3_leaf_entryp(leaf_d)[start_d];
entry_d = &xfs_attr3_leaf_entryp(leaf_d)[start_d + count];
memmove(entry_d, entry_s, tmp);
}
/*
* Copy all entry's in the same (sorted) order,
* but allocate attribute info packed and in sequence.
*/
entry_s = &leaf_s->entries[start_s];
entry_d = &leaf_d->entries[start_d];
entry_s = &xfs_attr3_leaf_entryp(leaf_s)[start_s];
entry_d = &xfs_attr3_leaf_entryp(leaf_d)[start_d];
desti = start_d;
for (i = 0; i < count; entry_s++, entry_d++, desti++, i++) {
ASSERT(be16_to_cpu(entry_s->nameidx)
>= be16_to_cpu(hdr_s->firstused));
ASSERT(be16_to_cpu(entry_s->nameidx) >= ichdr_s->firstused);
tmp = xfs_attr_leaf_entsize(leaf_s, start_s + i);
#ifdef GROT
/*
......@@ -2248,36 +2467,34 @@ xfs_attr_leaf_moveents(xfs_attr_leafblock_t *leaf_s, int start_s,
* off for 6.2, should be revisited later.
*/
if (entry_s->flags & XFS_ATTR_INCOMPLETE) { /* skip partials? */
memset(xfs_attr_leaf_name(leaf_s, start_s + i), 0, tmp);
be16_add_cpu(&hdr_s->usedbytes, -tmp);
be16_add_cpu(&hdr_s->count, -1);
memset(xfs_attr3_leaf_name(leaf_s, start_s + i), 0, tmp);
ichdr_s->usedbytes -= tmp;
ichdr_s->count -= 1;
entry_d--; /* to compensate for ++ in loop hdr */
desti--;
if ((start_s + i) < offset)
result++; /* insertion index adjustment */
} else {
#endif /* GROT */
be16_add_cpu(&hdr_d->firstused, -tmp);
ichdr_d->firstused -= tmp;
/* both on-disk, don't endian flip twice */
entry_d->hashval = entry_s->hashval;
/* both on-disk, don't endian flip twice */
entry_d->nameidx = hdr_d->firstused;
entry_d->nameidx = cpu_to_be16(ichdr_d->firstused);
entry_d->flags = entry_s->flags;
ASSERT(be16_to_cpu(entry_d->nameidx) + tmp
<= XFS_LBSIZE(mp));
memmove(xfs_attr_leaf_name(leaf_d, desti),
xfs_attr_leaf_name(leaf_s, start_s + i), tmp);
memmove(xfs_attr3_leaf_name(leaf_d, desti),
xfs_attr3_leaf_name(leaf_s, start_s + i), tmp);
ASSERT(be16_to_cpu(entry_s->nameidx) + tmp
<= XFS_LBSIZE(mp));
memset(xfs_attr_leaf_name(leaf_s, start_s + i), 0, tmp);
be16_add_cpu(&hdr_s->usedbytes, -tmp);
be16_add_cpu(&hdr_d->usedbytes, tmp);
be16_add_cpu(&hdr_s->count, -1);
be16_add_cpu(&hdr_d->count, 1);
tmp = be16_to_cpu(hdr_d->count)
* sizeof(xfs_attr_leaf_entry_t)
+ sizeof(xfs_attr_leaf_hdr_t);
ASSERT(be16_to_cpu(hdr_d->firstused) >= tmp);
memset(xfs_attr3_leaf_name(leaf_s, start_s + i), 0, tmp);
ichdr_s->usedbytes -= tmp;
ichdr_d->usedbytes += tmp;
ichdr_s->count -= 1;
ichdr_d->count += 1;
tmp = ichdr_d->count * sizeof(xfs_attr_leaf_entry_t)
+ xfs_attr3_leaf_hdr_size(leaf_d);
ASSERT(ichdr_d->firstused >= tmp);
#ifdef GROT
}
#endif /* GROT */
......@@ -2286,71 +2503,40 @@ xfs_attr_leaf_moveents(xfs_attr_leafblock_t *leaf_s, int start_s,
/*
* Zero out the entries we just copied.
*/
if (start_s == be16_to_cpu(hdr_s->count)) {
if (start_s == ichdr_s->count) {
tmp = count * sizeof(xfs_attr_leaf_entry_t);
entry_s = &leaf_s->entries[start_s];
entry_s = &xfs_attr3_leaf_entryp(leaf_s)[start_s];
ASSERT(((char *)entry_s + tmp) <=
((char *)leaf_s + XFS_LBSIZE(mp)));
memset((char *)entry_s, 0, tmp);
memset(entry_s, 0, tmp);
} else {
/*
* Move the remaining entries down to fill the hole,
* then zero the entries at the top.
*/
tmp = be16_to_cpu(hdr_s->count) - count;
tmp *= sizeof(xfs_attr_leaf_entry_t);
entry_s = &leaf_s->entries[start_s + count];
entry_d = &leaf_s->entries[start_s];
memmove((char *)entry_d, (char *)entry_s, tmp);
tmp = (ichdr_s->count - count) * sizeof(xfs_attr_leaf_entry_t);
entry_s = &xfs_attr3_leaf_entryp(leaf_s)[start_s + count];
entry_d = &xfs_attr3_leaf_entryp(leaf_s)[start_s];
memmove(entry_d, entry_s, tmp);
tmp = count * sizeof(xfs_attr_leaf_entry_t);
entry_s = &leaf_s->entries[be16_to_cpu(hdr_s->count)];
entry_s = &xfs_attr3_leaf_entryp(leaf_s)[ichdr_s->count];
ASSERT(((char *)entry_s + tmp) <=
((char *)leaf_s + XFS_LBSIZE(mp)));
memset((char *)entry_s, 0, tmp);
memset(entry_s, 0, tmp);
}
/*
* Fill in the freemap information
*/
hdr_d->freemap[0].base = cpu_to_be16(sizeof(xfs_attr_leaf_hdr_t));
be16_add_cpu(&hdr_d->freemap[0].base, be16_to_cpu(hdr_d->count) *
sizeof(xfs_attr_leaf_entry_t));
hdr_d->freemap[0].size = cpu_to_be16(be16_to_cpu(hdr_d->firstused)
- be16_to_cpu(hdr_d->freemap[0].base));
hdr_d->freemap[1].base = 0;
hdr_d->freemap[2].base = 0;
hdr_d->freemap[1].size = 0;
hdr_d->freemap[2].size = 0;
hdr_s->holes = 1; /* leaf may not be compact */
}
/*
* Compare two leaf blocks "order".
* Return 0 unless leaf2 should go before leaf1.
*/
int
xfs_attr_leaf_order(
struct xfs_buf *leaf1_bp,
struct xfs_buf *leaf2_bp)
{
xfs_attr_leafblock_t *leaf1, *leaf2;
leaf1 = leaf1_bp->b_addr;
leaf2 = leaf2_bp->b_addr;
ASSERT((leaf1->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC)) &&
(leaf2->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC)));
if ((be16_to_cpu(leaf1->hdr.count) > 0) &&
(be16_to_cpu(leaf2->hdr.count) > 0) &&
((be32_to_cpu(leaf2->entries[0].hashval) <
be32_to_cpu(leaf1->entries[0].hashval)) ||
(be32_to_cpu(leaf2->entries[
be16_to_cpu(leaf2->hdr.count)-1].hashval) <
be32_to_cpu(leaf1->entries[
be16_to_cpu(leaf1->hdr.count)-1].hashval)))) {
return(1);
}
return(0);
ichdr_d->freemap[0].base = xfs_attr3_leaf_hdr_size(leaf_d);
ichdr_d->freemap[0].base += ichdr_d->count * sizeof(xfs_attr_leaf_entry_t);
ichdr_d->freemap[0].size = ichdr_d->firstused - ichdr_d->freemap[0].base;
ichdr_d->freemap[1].base = 0;
ichdr_d->freemap[2].base = 0;
ichdr_d->freemap[1].size = 0;
ichdr_d->freemap[2].size = 0;
ichdr_s->holes = 1; /* leaf may not be compact */
}
/*
......@@ -2361,15 +2547,16 @@ xfs_attr_leaf_lasthash(
struct xfs_buf *bp,
int *count)
{
xfs_attr_leafblock_t *leaf;
struct xfs_attr3_icleaf_hdr ichdr;
struct xfs_attr_leaf_entry *entries;
leaf = bp->b_addr;
ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
xfs_attr3_leaf_hdr_from_disk(&ichdr, bp->b_addr);
entries = xfs_attr3_leaf_entryp(bp->b_addr);
if (count)
*count = be16_to_cpu(leaf->hdr.count);
if (!leaf->hdr.count)
return(0);
return be32_to_cpu(leaf->entries[be16_to_cpu(leaf->hdr.count)-1].hashval);
*count = ichdr.count;
if (!ichdr.count)
return 0;
return be32_to_cpu(entries[ichdr.count - 1].hashval);
}
/*
......@@ -2379,20 +2566,21 @@ xfs_attr_leaf_lasthash(
STATIC int
xfs_attr_leaf_entsize(xfs_attr_leafblock_t *leaf, int index)
{
struct xfs_attr_leaf_entry *entries;
xfs_attr_leaf_name_local_t *name_loc;
xfs_attr_leaf_name_remote_t *name_rmt;
int size;
ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
if (leaf->entries[index].flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr_leaf_name_local(leaf, index);
entries = xfs_attr3_leaf_entryp(leaf);
if (entries[index].flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr3_leaf_name_local(leaf, index);
size = xfs_attr_leaf_entsize_local(name_loc->namelen,
be16_to_cpu(name_loc->valuelen));
} else {
name_rmt = xfs_attr_leaf_name_remote(leaf, index);
name_rmt = xfs_attr3_leaf_name_remote(leaf, index);
size = xfs_attr_leaf_entsize_remote(name_rmt->namelen);
}
return(size);
return size;
}
/*
......@@ -2417,35 +2605,40 @@ xfs_attr_leaf_newentsize(int namelen, int valuelen, int blocksize, int *local)
*local = 0;
}
}
return(size);
return size;
}
/*
* Copy out attribute list entries for attr_list(), for leaf attribute lists.
*/
int
xfs_attr_leaf_list_int(
struct xfs_buf *bp,
xfs_attr_list_context_t *context)
xfs_attr3_leaf_list_int(
struct xfs_buf *bp,
struct xfs_attr_list_context *context)
{
attrlist_cursor_kern_t *cursor;
xfs_attr_leafblock_t *leaf;
xfs_attr_leaf_entry_t *entry;
int retval, i;
struct attrlist_cursor_kern *cursor;
struct xfs_attr_leafblock *leaf;
struct xfs_attr3_icleaf_hdr ichdr;
struct xfs_attr_leaf_entry *entries;
struct xfs_attr_leaf_entry *entry;
int retval;
int i;
trace_xfs_attr_list_leaf(context);
ASSERT(bp != NULL);
leaf = bp->b_addr;
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
entries = xfs_attr3_leaf_entryp(leaf);
cursor = context->cursor;
cursor->initted = 1;
trace_xfs_attr_list_leaf(context);
/*
* Re-find our place in the leaf block if this is a new syscall.
*/
if (context->resynch) {
entry = &leaf->entries[0];
for (i = 0; i < be16_to_cpu(leaf->hdr.count); entry++, i++) {
entry = &entries[0];
for (i = 0; i < ichdr.count; entry++, i++) {
if (be32_to_cpu(entry->hashval) == cursor->hashval) {
if (cursor->offset == context->dupcnt) {
context->dupcnt = 0;
......@@ -2458,12 +2651,12 @@ xfs_attr_leaf_list_int(
break;
}
}
if (i == be16_to_cpu(leaf->hdr.count)) {
if (i == ichdr.count) {
trace_xfs_attr_list_notfound(context);
return(0);
return 0;
}
} else {
entry = &leaf->entries[0];
entry = &entries[0];
i = 0;
}
context->resynch = 0;
......@@ -2472,7 +2665,7 @@ xfs_attr_leaf_list_int(
* We have found our place, start copying out the new attributes.
*/
retval = 0;
for ( ; (i < be16_to_cpu(leaf->hdr.count)); entry++, i++) {
for (; i < ichdr.count; entry++, i++) {
if (be32_to_cpu(entry->hashval) != cursor->hashval) {
cursor->hashval = be32_to_cpu(entry->hashval);
cursor->offset = 0;
......@@ -2483,7 +2676,7 @@ xfs_attr_leaf_list_int(
if (entry->flags & XFS_ATTR_LOCAL) {
xfs_attr_leaf_name_local_t *name_loc =
xfs_attr_leaf_name_local(leaf, i);
xfs_attr3_leaf_name_local(leaf, i);
retval = context->put_listent(context,
entry->flags,
......@@ -2495,7 +2688,7 @@ xfs_attr_leaf_list_int(
return retval;
} else {
xfs_attr_leaf_name_remote_t *name_rmt =
xfs_attr_leaf_name_remote(leaf, i);
xfs_attr3_leaf_name_remote(leaf, i);
int valuelen = be32_to_cpu(name_rmt->valuelen);
......@@ -2535,7 +2728,7 @@ xfs_attr_leaf_list_int(
cursor->offset++;
}
trace_xfs_attr_list_leaf_end(context);
return(retval);
return retval;
}
......@@ -2547,14 +2740,16 @@ xfs_attr_leaf_list_int(
* Clear the INCOMPLETE flag on an entry in a leaf block.
*/
int
xfs_attr_leaf_clearflag(xfs_da_args_t *args)
xfs_attr3_leaf_clearflag(
struct xfs_da_args *args)
{
xfs_attr_leafblock_t *leaf;
xfs_attr_leaf_entry_t *entry;
xfs_attr_leaf_name_remote_t *name_rmt;
struct xfs_buf *bp;
int error;
struct xfs_attr_leafblock *leaf;
struct xfs_attr_leaf_entry *entry;
struct xfs_attr_leaf_name_remote *name_rmt;
struct xfs_buf *bp;
int error;
#ifdef DEBUG
struct xfs_attr3_icleaf_hdr ichdr;
xfs_attr_leaf_name_local_t *name_loc;
int namelen;
char *name;
......@@ -2564,23 +2759,25 @@ xfs_attr_leaf_clearflag(xfs_da_args_t *args)
/*
* Set up the operation.
*/
error = xfs_attr_leaf_read(args->trans, args->dp, args->blkno, -1, &bp);
error = xfs_attr3_leaf_read(args->trans, args->dp, args->blkno, -1, &bp);
if (error)
return(error);
leaf = bp->b_addr;
ASSERT(args->index < be16_to_cpu(leaf->hdr.count));
ASSERT(args->index >= 0);
entry = &leaf->entries[ args->index ];
entry = &xfs_attr3_leaf_entryp(leaf)[args->index];
ASSERT(entry->flags & XFS_ATTR_INCOMPLETE);
#ifdef DEBUG
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
ASSERT(args->index < ichdr.count);
ASSERT(args->index >= 0);
if (entry->flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr_leaf_name_local(leaf, args->index);
name_loc = xfs_attr3_leaf_name_local(leaf, args->index);
namelen = name_loc->namelen;
name = (char *)name_loc->nameval;
} else {
name_rmt = xfs_attr_leaf_name_remote(leaf, args->index);
name_rmt = xfs_attr3_leaf_name_remote(leaf, args->index);
namelen = name_rmt->namelen;
name = (char *)name_rmt->name;
}
......@@ -2595,7 +2792,7 @@ xfs_attr_leaf_clearflag(xfs_da_args_t *args)
if (args->rmtblkno) {
ASSERT((entry->flags & XFS_ATTR_LOCAL) == 0);
name_rmt = xfs_attr_leaf_name_remote(leaf, args->index);
name_rmt = xfs_attr3_leaf_name_remote(leaf, args->index);
name_rmt->valueblk = cpu_to_be32(args->rmtblkno);
name_rmt->valuelen = cpu_to_be32(args->valuelen);
xfs_trans_log_buf(args->trans, bp,
......@@ -2612,34 +2809,41 @@ xfs_attr_leaf_clearflag(xfs_da_args_t *args)
* Set the INCOMPLETE flag on an entry in a leaf block.
*/
int
xfs_attr_leaf_setflag(xfs_da_args_t *args)
xfs_attr3_leaf_setflag(
struct xfs_da_args *args)
{
xfs_attr_leafblock_t *leaf;
xfs_attr_leaf_entry_t *entry;
xfs_attr_leaf_name_remote_t *name_rmt;
struct xfs_buf *bp;
struct xfs_attr_leafblock *leaf;
struct xfs_attr_leaf_entry *entry;
struct xfs_attr_leaf_name_remote *name_rmt;
struct xfs_buf *bp;
int error;
#ifdef DEBUG
struct xfs_attr3_icleaf_hdr ichdr;
#endif
trace_xfs_attr_leaf_setflag(args);
/*
* Set up the operation.
*/
error = xfs_attr_leaf_read(args->trans, args->dp, args->blkno, -1, &bp);
error = xfs_attr3_leaf_read(args->trans, args->dp, args->blkno, -1, &bp);
if (error)
return(error);
leaf = bp->b_addr;
ASSERT(args->index < be16_to_cpu(leaf->hdr.count));
#ifdef DEBUG
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
ASSERT(args->index < ichdr.count);
ASSERT(args->index >= 0);
entry = &leaf->entries[ args->index ];
#endif
entry = &xfs_attr3_leaf_entryp(leaf)[args->index];
ASSERT((entry->flags & XFS_ATTR_INCOMPLETE) == 0);
entry->flags |= XFS_ATTR_INCOMPLETE;
xfs_trans_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, entry, sizeof(*entry)));
if ((entry->flags & XFS_ATTR_LOCAL) == 0) {
name_rmt = xfs_attr_leaf_name_remote(leaf, args->index);
name_rmt = xfs_attr3_leaf_name_remote(leaf, args->index);
name_rmt->valueblk = 0;
name_rmt->valuelen = 0;
xfs_trans_log_buf(args->trans, bp,
......@@ -2660,14 +2864,20 @@ xfs_attr_leaf_setflag(xfs_da_args_t *args)
* Note that they could be in different blocks, or in the same block.
*/
int
xfs_attr_leaf_flipflags(xfs_da_args_t *args)
xfs_attr3_leaf_flipflags(
struct xfs_da_args *args)
{
xfs_attr_leafblock_t *leaf1, *leaf2;
xfs_attr_leaf_entry_t *entry1, *entry2;
xfs_attr_leaf_name_remote_t *name_rmt;
struct xfs_buf *bp1, *bp2;
struct xfs_attr_leafblock *leaf1;
struct xfs_attr_leafblock *leaf2;
struct xfs_attr_leaf_entry *entry1;
struct xfs_attr_leaf_entry *entry2;
struct xfs_attr_leaf_name_remote *name_rmt;
struct xfs_buf *bp1;
struct xfs_buf *bp2;
int error;
#ifdef DEBUG
struct xfs_attr3_icleaf_hdr ichdr1;
struct xfs_attr3_icleaf_hdr ichdr2;
xfs_attr_leaf_name_local_t *name_loc;
int namelen1, namelen2;
char *name1, *name2;
......@@ -2678,7 +2888,7 @@ xfs_attr_leaf_flipflags(xfs_da_args_t *args)
/*
* Read the block containing the "old" attr
*/
error = xfs_attr_leaf_read(args->trans, args->dp, args->blkno, -1, &bp1);
error = xfs_attr3_leaf_read(args->trans, args->dp, args->blkno, -1, &bp1);
if (error)
return error;
......@@ -2686,7 +2896,7 @@ xfs_attr_leaf_flipflags(xfs_da_args_t *args)
* Read the block containing the "new" attr, if it is different
*/
if (args->blkno2 != args->blkno) {
error = xfs_attr_leaf_read(args->trans, args->dp, args->blkno2,
error = xfs_attr3_leaf_read(args->trans, args->dp, args->blkno2,
-1, &bp2);
if (error)
return error;
......@@ -2695,31 +2905,35 @@ xfs_attr_leaf_flipflags(xfs_da_args_t *args)
}
leaf1 = bp1->b_addr;
ASSERT(args->index < be16_to_cpu(leaf1->hdr.count));
ASSERT(args->index >= 0);
entry1 = &leaf1->entries[ args->index ];
entry1 = &xfs_attr3_leaf_entryp(leaf1)[args->index];
leaf2 = bp2->b_addr;
ASSERT(args->index2 < be16_to_cpu(leaf2->hdr.count));
ASSERT(args->index2 >= 0);
entry2 = &leaf2->entries[ args->index2 ];
entry2 = &xfs_attr3_leaf_entryp(leaf2)[args->index2];
#ifdef DEBUG
xfs_attr3_leaf_hdr_from_disk(&ichdr1, leaf1);
ASSERT(args->index < ichdr1.count);
ASSERT(args->index >= 0);
xfs_attr3_leaf_hdr_from_disk(&ichdr2, leaf2);
ASSERT(args->index2 < ichdr2.count);
ASSERT(args->index2 >= 0);
if (entry1->flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr_leaf_name_local(leaf1, args->index);
name_loc = xfs_attr3_leaf_name_local(leaf1, args->index);
namelen1 = name_loc->namelen;
name1 = (char *)name_loc->nameval;
} else {
name_rmt = xfs_attr_leaf_name_remote(leaf1, args->index);
name_rmt = xfs_attr3_leaf_name_remote(leaf1, args->index);
namelen1 = name_rmt->namelen;
name1 = (char *)name_rmt->name;
}
if (entry2->flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr_leaf_name_local(leaf2, args->index2);
name_loc = xfs_attr3_leaf_name_local(leaf2, args->index2);
namelen2 = name_loc->namelen;
name2 = (char *)name_loc->nameval;
} else {
name_rmt = xfs_attr_leaf_name_remote(leaf2, args->index2);
name_rmt = xfs_attr3_leaf_name_remote(leaf2, args->index2);
namelen2 = name_rmt->namelen;
name2 = (char *)name_rmt->name;
}
......@@ -2736,7 +2950,7 @@ xfs_attr_leaf_flipflags(xfs_da_args_t *args)
XFS_DA_LOGRANGE(leaf1, entry1, sizeof(*entry1)));
if (args->rmtblkno) {
ASSERT((entry1->flags & XFS_ATTR_LOCAL) == 0);
name_rmt = xfs_attr_leaf_name_remote(leaf1, args->index);
name_rmt = xfs_attr3_leaf_name_remote(leaf1, args->index);
name_rmt->valueblk = cpu_to_be32(args->rmtblkno);
name_rmt->valuelen = cpu_to_be32(args->valuelen);
xfs_trans_log_buf(args->trans, bp1,
......@@ -2747,7 +2961,7 @@ xfs_attr_leaf_flipflags(xfs_da_args_t *args)
xfs_trans_log_buf(args->trans, bp2,
XFS_DA_LOGRANGE(leaf2, entry2, sizeof(*entry2)));
if ((entry2->flags & XFS_ATTR_LOCAL) == 0) {
name_rmt = xfs_attr_leaf_name_remote(leaf2, args->index2);
name_rmt = xfs_attr3_leaf_name_remote(leaf2, args->index2);
name_rmt->valueblk = 0;
name_rmt->valuelen = 0;
xfs_trans_log_buf(args->trans, bp2,
......@@ -2759,7 +2973,7 @@ xfs_attr_leaf_flipflags(xfs_da_args_t *args)
*/
error = xfs_trans_roll(&args->trans, args->dp);
return(error);
return error;
}
/*========================================================================
......@@ -2771,12 +2985,14 @@ xfs_attr_leaf_flipflags(xfs_da_args_t *args)
* We're doing a depth-first traversal in order to invalidate everything.
*/
int
xfs_attr_root_inactive(xfs_trans_t **trans, xfs_inode_t *dp)
xfs_attr3_root_inactive(
struct xfs_trans **trans,
struct xfs_inode *dp)
{
xfs_da_blkinfo_t *info;
xfs_daddr_t blkno;
struct xfs_buf *bp;
int error;
struct xfs_da_blkinfo *info;
struct xfs_buf *bp;
xfs_daddr_t blkno;
int error;
/*
* Read block 0 to see what we have to work with.
......@@ -2786,38 +3002,44 @@ xfs_attr_root_inactive(xfs_trans_t **trans, xfs_inode_t *dp)
*/
error = xfs_da3_node_read(*trans, dp, 0, -1, &bp, XFS_ATTR_FORK);
if (error)
return(error);
blkno = XFS_BUF_ADDR(bp);
return error;
blkno = bp->b_bn;
/*
* Invalidate the tree, even if the "tree" is only a single leaf block.
* This is a depth-first traversal!
*/
info = bp->b_addr;
if (info->magic == cpu_to_be16(XFS_DA_NODE_MAGIC)) {
error = xfs_attr_node_inactive(trans, dp, bp, 1);
} else if (info->magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC)) {
error = xfs_attr_leaf_inactive(trans, dp, bp);
} else {
switch (info->magic) {
case cpu_to_be16(XFS_DA_NODE_MAGIC):
case cpu_to_be16(XFS_DA3_NODE_MAGIC):
error = xfs_attr3_node_inactive(trans, dp, bp, 1);
break;
case cpu_to_be16(XFS_ATTR_LEAF_MAGIC):
case cpu_to_be16(XFS_ATTR3_LEAF_MAGIC):
error = xfs_attr3_leaf_inactive(trans, dp, bp);
break;
default:
error = XFS_ERROR(EIO);
xfs_trans_brelse(*trans, bp);
break;
}
if (error)
return(error);
return error;
/*
* Invalidate the incore copy of the root block.
*/
error = xfs_da_get_buf(*trans, dp, 0, blkno, &bp, XFS_ATTR_FORK);
if (error)
return(error);
return error;
xfs_trans_binval(*trans, bp); /* remove from cache */
/*
* Commit the invalidate and start the next transaction.
*/
error = xfs_trans_roll(trans, dp);
return (error);
return error;
}
/*
......@@ -2825,7 +3047,7 @@ xfs_attr_root_inactive(xfs_trans_t **trans, xfs_inode_t *dp)
* We're doing a depth-first traversal in order to invalidate everything.
*/
STATIC int
xfs_attr_node_inactive(
xfs_attr3_node_inactive(
struct xfs_trans **trans,
struct xfs_inode *dp,
struct xfs_buf *bp,
......@@ -2835,25 +3057,25 @@ xfs_attr_node_inactive(
xfs_da_intnode_t *node;
xfs_dablk_t child_fsb;
xfs_daddr_t parent_blkno, child_blkno;
int error, count, i;
int error, i;
struct xfs_buf *child_bp;
struct xfs_da_node_entry *btree;
struct xfs_da3_icnode_hdr ichdr;
/*
* Since this code is recursive (gasp!) we must protect ourselves.
*/
if (level > XFS_DA_NODE_MAXDEPTH) {
xfs_trans_brelse(*trans, bp); /* no locks for later trans */
return(XFS_ERROR(EIO));
return XFS_ERROR(EIO);
}
node = bp->b_addr;
ASSERT(node->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
parent_blkno = XFS_BUF_ADDR(bp); /* save for re-read later */
count = be16_to_cpu(node->hdr.count);
if (!count) {
xfs_da3_node_hdr_from_disk(&ichdr, node);
parent_blkno = bp->b_bn;
if (!ichdr.count) {
xfs_trans_brelse(*trans, bp);
return(0);
return 0;
}
btree = xfs_da3_node_tree_p(node);
child_fsb = be32_to_cpu(btree[0].before);
......@@ -2864,7 +3086,7 @@ xfs_attr_node_inactive(
* over the leaves removing all of them. If this is higher up
* in the tree, recurse downward.
*/
for (i = 0; i < count; i++) {
for (i = 0; i < ichdr.count; i++) {
/*
* Read the subsidiary block to see what we have to work with.
* Don't do this in a transaction. This is a depth-first
......@@ -2883,18 +3105,24 @@ xfs_attr_node_inactive(
* Invalidate the subtree, however we have to.
*/
info = child_bp->b_addr;
if (info->magic == cpu_to_be16(XFS_DA_NODE_MAGIC)) {
error = xfs_attr_node_inactive(trans, dp,
child_bp, level+1);
} else if (info->magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC)) {
error = xfs_attr_leaf_inactive(trans, dp,
child_bp);
} else {
switch (info->magic) {
case cpu_to_be16(XFS_DA_NODE_MAGIC):
case cpu_to_be16(XFS_DA3_NODE_MAGIC):
error = xfs_attr3_node_inactive(trans, dp,
child_bp, level + 1);
break;
case cpu_to_be16(XFS_ATTR_LEAF_MAGIC):
case cpu_to_be16(XFS_ATTR3_LEAF_MAGIC):
error = xfs_attr3_leaf_inactive(trans, dp,
child_bp);
break;
default:
error = XFS_ERROR(EIO);
xfs_trans_brelse(*trans, child_bp);
break;
}
if (error)
return(error);
return error;
/*
* Remove the subsidiary block from the cache
......@@ -2903,7 +3131,7 @@ xfs_attr_node_inactive(
error = xfs_da_get_buf(*trans, dp, 0, child_blkno,
&child_bp, XFS_ATTR_FORK);
if (error)
return(error);
return error;
xfs_trans_binval(*trans, child_bp);
}
......@@ -2911,12 +3139,12 @@ xfs_attr_node_inactive(
* If we're not done, re-read the parent to get the next
* child block number.
*/
if ((i+1) < count) {
if (i + 1 < ichdr.count) {
error = xfs_da3_node_read(*trans, dp, 0, parent_blkno,
&bp, XFS_ATTR_FORK);
if (error)
return(error);
child_fsb = be32_to_cpu(btree[i+1].before);
return error;
child_fsb = be32_to_cpu(btree[i + 1].before);
xfs_trans_brelse(*trans, bp);
}
/*
......@@ -2924,10 +3152,10 @@ xfs_attr_node_inactive(
*/
error = xfs_trans_roll(trans, dp);
if (error)
return (error);
return error;
}
return(0);
return 0;
}
/*
......@@ -2937,29 +3165,35 @@ xfs_attr_node_inactive(
* caught holding something that the logging code wants to flush to disk.
*/
STATIC int
xfs_attr_leaf_inactive(
struct xfs_trans **trans,
struct xfs_inode *dp,
struct xfs_buf *bp)
xfs_attr3_leaf_inactive(
struct xfs_trans **trans,
struct xfs_inode *dp,
struct xfs_buf *bp)
{
xfs_attr_leafblock_t *leaf;
xfs_attr_leaf_entry_t *entry;
xfs_attr_leaf_name_remote_t *name_rmt;
xfs_attr_inactive_list_t *list, *lp;
int error, count, size, tmp, i;
struct xfs_attr_leafblock *leaf;
struct xfs_attr3_icleaf_hdr ichdr;
struct xfs_attr_leaf_entry *entry;
struct xfs_attr_leaf_name_remote *name_rmt;
struct xfs_attr_inactive_list *list;
struct xfs_attr_inactive_list *lp;
int error;
int count;
int size;
int tmp;
int i;
leaf = bp->b_addr;
ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
/*
* Count the number of "remote" value extents.
*/
count = 0;
entry = &leaf->entries[0];
for (i = 0; i < be16_to_cpu(leaf->hdr.count); entry++, i++) {
entry = xfs_attr3_leaf_entryp(leaf);
for (i = 0; i < ichdr.count; entry++, i++) {
if (be16_to_cpu(entry->nameidx) &&
((entry->flags & XFS_ATTR_LOCAL) == 0)) {
name_rmt = xfs_attr_leaf_name_remote(leaf, i);
name_rmt = xfs_attr3_leaf_name_remote(leaf, i);
if (name_rmt->valueblk)
count++;
}
......@@ -2970,24 +3204,24 @@ xfs_attr_leaf_inactive(
*/
if (count == 0) {
xfs_trans_brelse(*trans, bp);
return(0);
return 0;
}
/*
* Allocate storage for a list of all the "remote" value extents.
*/
size = count * sizeof(xfs_attr_inactive_list_t);
list = (xfs_attr_inactive_list_t *)kmem_alloc(size, KM_SLEEP);
list = kmem_alloc(size, KM_SLEEP);
/*
* Identify each of the "remote" value extents.
*/
lp = list;
entry = &leaf->entries[0];
for (i = 0; i < be16_to_cpu(leaf->hdr.count); entry++, i++) {
entry = xfs_attr3_leaf_entryp(leaf);
for (i = 0; i < ichdr.count; entry++, i++) {
if (be16_to_cpu(entry->nameidx) &&
((entry->flags & XFS_ATTR_LOCAL) == 0)) {
name_rmt = xfs_attr_leaf_name_remote(leaf, i);
name_rmt = xfs_attr3_leaf_name_remote(leaf, i);
if (name_rmt->valueblk) {
lp->valueblk = be32_to_cpu(name_rmt->valueblk);
lp->valuelen = XFS_B_TO_FSB(dp->i_mount,
......@@ -3003,15 +3237,15 @@ xfs_attr_leaf_inactive(
*/
error = 0;
for (lp = list, i = 0; i < count; i++, lp++) {
tmp = xfs_attr_leaf_freextent(trans, dp,
tmp = xfs_attr3_leaf_freextent(trans, dp,
lp->valueblk, lp->valuelen);
if (error == 0)
error = tmp; /* save only the 1st errno */
}
kmem_free((xfs_caddr_t)list);
return(error);
kmem_free(list);
return error;
}
/*
......@@ -3019,14 +3253,20 @@ xfs_attr_leaf_inactive(
* invalidate any buffers that are incore/in transactions.
*/
STATIC int
xfs_attr_leaf_freextent(xfs_trans_t **trans, xfs_inode_t *dp,
xfs_dablk_t blkno, int blkcnt)
xfs_attr3_leaf_freextent(
struct xfs_trans **trans,
struct xfs_inode *dp,
xfs_dablk_t blkno,
int blkcnt)
{
xfs_bmbt_irec_t map;
xfs_dablk_t tblkno;
int tblkcnt, dblkcnt, nmap, error;
xfs_daddr_t dblkno;
xfs_buf_t *bp;
struct xfs_bmbt_irec map;
struct xfs_buf *bp;
xfs_dablk_t tblkno;
xfs_daddr_t dblkno;
int tblkcnt;
int dblkcnt;
int nmap;
int error;
/*
* Roll through the "value", invalidating the attribute value's
......
fs/xfs/xfs_attr_leaf.h
View file @ 517c2220
/*
* Copyright (c) 2000,2002-2003,2005 Silicon Graphics, Inc.
* Copyright (c) 2013 Red Hat, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
......@@ -89,7 +90,7 @@ typedef struct xfs_attr_leaf_hdr { /* constant-structure header block */
typedef struct xfs_attr_leaf_entry { /* sorted on key, not name */
__be32 hashval; /* hash value of name */
__be16 nameidx; /* index into buffer of name/value */
__be16 nameidx; /* index into buffer of name/value */
__u8 flags; /* LOCAL/ROOT/SECURE/INCOMPLETE flag */
__u8 pad2; /* unused pad byte */
} xfs_attr_leaf_entry_t;
......@@ -114,6 +115,54 @@ typedef struct xfs_attr_leafblock {
xfs_attr_leaf_name_remote_t valuelist; /* grows from bottom of buf */
} xfs_attr_leafblock_t;
/*
* CRC enabled leaf structures. Called "version 3" structures to match the
* version number of the directory and dablk structures for this feature, and
* attr2 is already taken by the variable inode attribute fork size feature.
*/
struct xfs_attr3_leaf_hdr {
struct xfs_da3_blkinfo info;
__be16 count;
__be16 usedbytes;
__be16 firstused;
__u8 holes;
__u8 pad1;
struct xfs_attr_leaf_map freemap[XFS_ATTR_LEAF_MAPSIZE];
};
#define XFS_ATTR3_LEAF_CRC_OFF (offsetof(struct xfs_attr3_leaf_hdr, info.crc))
struct xfs_attr3_leafblock {
struct xfs_attr3_leaf_hdr hdr;
struct xfs_attr_leaf_entry entries[1];
/*
* The rest of the block contains the following structures after the
* leaf entries, growing from the bottom up. The variables are never
* referenced, the locations accessed purely from helper functions.
*
* struct xfs_attr_leaf_name_local
* struct xfs_attr_leaf_name_remote
*/
};
/*
* incore, neutral version of the attribute leaf header
*/
struct xfs_attr3_icleaf_hdr {
__uint32_t forw;
__uint32_t back;
__uint16_t magic;
__uint16_t count;
__uint16_t usedbytes;
__uint16_t firstused;
__u8 holes;
struct {
__uint16_t base;
__uint16_t size;
} freemap[XFS_ATTR_LEAF_MAPSIZE];
};
/*
* Flags used in the leaf_entry[i].flags field.
* NOTE: the INCOMPLETE bit must not collide with the flags bits specified
......@@ -147,26 +196,43 @@ typedef struct xfs_attr_leafblock {
*/
#define XFS_ATTR_LEAF_NAME_ALIGN ((uint)sizeof(xfs_dablk_t))
static inline int
xfs_attr3_leaf_hdr_size(struct xfs_attr_leafblock *leafp)
{
if (leafp->hdr.info.magic == cpu_to_be16(XFS_ATTR3_LEAF_MAGIC))
return sizeof(struct xfs_attr3_leaf_hdr);
return sizeof(struct xfs_attr_leaf_hdr);
}
static inline struct xfs_attr_leaf_entry *
xfs_attr3_leaf_entryp(xfs_attr_leafblock_t *leafp)
{
if (leafp->hdr.info.magic == cpu_to_be16(XFS_ATTR3_LEAF_MAGIC))
return &((struct xfs_attr3_leafblock *)leafp)->entries[0];
return &leafp->entries[0];
}
/*
* Cast typed pointers for "local" and "remote" name/value structs.
*/
static inline xfs_attr_leaf_name_remote_t *
xfs_attr_leaf_name_remote(xfs_attr_leafblock_t *leafp, int idx)
static inline char *
xfs_attr3_leaf_name(xfs_attr_leafblock_t *leafp, int idx)
{
return (xfs_attr_leaf_name_remote_t *)
&((char *)leafp)[be16_to_cpu(leafp->entries[idx].nameidx)];
struct xfs_attr_leaf_entry *entries = xfs_attr3_leaf_entryp(leafp);
return &((char *)leafp)[be16_to_cpu(entries[idx].nameidx)];
}
static inline xfs_attr_leaf_name_local_t *
xfs_attr_leaf_name_local(xfs_attr_leafblock_t *leafp, int idx)
static inline xfs_attr_leaf_name_remote_t *
xfs_attr3_leaf_name_remote(xfs_attr_leafblock_t *leafp, int idx)
{
return (xfs_attr_leaf_name_local_t *)
&((char *)leafp)[be16_to_cpu(leafp->entries[idx].nameidx)];
return (xfs_attr_leaf_name_remote_t *)xfs_attr3_leaf_name(leafp, idx);
}
static inline char *xfs_attr_leaf_name(xfs_attr_leafblock_t *leafp, int idx)
static inline xfs_attr_leaf_name_local_t *
xfs_attr3_leaf_name_local(xfs_attr_leafblock_t *leafp, int idx)
{
return &((char *)leafp)[be16_to_cpu(leafp->entries[idx].nameidx)];
return (xfs_attr_leaf_name_local_t *)xfs_attr3_leaf_name(leafp, idx);
}
/*
......@@ -221,37 +287,37 @@ int xfs_attr_shortform_bytesfit(xfs_inode_t *dp, int bytes);
/*
* Internal routines when attribute fork size == XFS_LBSIZE(mp).
*/
int xfs_attr_leaf_to_node(struct xfs_da_args *args);
int xfs_attr_leaf_to_shortform(struct xfs_buf *bp,
int xfs_attr3_leaf_to_node(struct xfs_da_args *args);
int xfs_attr3_leaf_to_shortform(struct xfs_buf *bp,
struct xfs_da_args *args, int forkoff);
int xfs_attr_leaf_clearflag(struct xfs_da_args *args);
int xfs_attr_leaf_setflag(struct xfs_da_args *args);
int xfs_attr_leaf_flipflags(xfs_da_args_t *args);
int xfs_attr3_leaf_clearflag(struct xfs_da_args *args);
int xfs_attr3_leaf_setflag(struct xfs_da_args *args);
int xfs_attr3_leaf_flipflags(struct xfs_da_args *args);
/*
* Routines used for growing the Btree.
*/
int xfs_attr_leaf_split(struct xfs_da_state *state,
int xfs_attr3_leaf_split(struct xfs_da_state *state,
struct xfs_da_state_blk *oldblk,
struct xfs_da_state_blk *newblk);
int xfs_attr_leaf_lookup_int(struct xfs_buf *leaf,
int xfs_attr3_leaf_lookup_int(struct xfs_buf *leaf,
struct xfs_da_args *args);
int xfs_attr_leaf_getvalue(struct xfs_buf *bp, struct xfs_da_args *args);
int xfs_attr_leaf_add(struct xfs_buf *leaf_buffer,
int xfs_attr3_leaf_getvalue(struct xfs_buf *bp, struct xfs_da_args *args);
int xfs_attr3_leaf_add(struct xfs_buf *leaf_buffer,
struct xfs_da_args *args);
int xfs_attr_leaf_remove(struct xfs_buf *leaf_buffer,
int xfs_attr3_leaf_remove(struct xfs_buf *leaf_buffer,
struct xfs_da_args *args);
int xfs_attr_leaf_list_int(struct xfs_buf *bp,
int xfs_attr3_leaf_list_int(struct xfs_buf *bp,
struct xfs_attr_list_context *context);
/*
* Routines used for shrinking the Btree.
*/
int xfs_attr_leaf_toosmall(struct xfs_da_state *state, int *retval);
void xfs_attr_leaf_unbalance(struct xfs_da_state *state,
int xfs_attr3_leaf_toosmall(struct xfs_da_state *state, int *retval);
void xfs_attr3_leaf_unbalance(struct xfs_da_state *state,
struct xfs_da_state_blk *drop_blk,
struct xfs_da_state_blk *save_blk);
int xfs_attr_root_inactive(struct xfs_trans **trans, struct xfs_inode *dp);
int xfs_attr3_root_inactive(struct xfs_trans **trans, struct xfs_inode *dp);
/*
* Utility routines.
......@@ -261,10 +327,12 @@ int xfs_attr_leaf_order(struct xfs_buf *leaf1_bp,
struct xfs_buf *leaf2_bp);
int xfs_attr_leaf_newentsize(int namelen, int valuelen, int blocksize,
int *local);
int xfs_attr_leaf_read(struct xfs_trans *tp, struct xfs_inode *dp,
int xfs_attr3_leaf_read(struct xfs_trans *tp, struct xfs_inode *dp,
xfs_dablk_t bno, xfs_daddr_t mappedbno,
struct xfs_buf **bpp);
void xfs_attr3_leaf_hdr_from_disk(struct xfs_attr3_icleaf_hdr *to,
struct xfs_attr_leafblock *from);
extern const struct xfs_buf_ops xfs_attr_leaf_buf_ops;
extern const struct xfs_buf_ops xfs_attr3_leaf_buf_ops;
#endif /* __XFS_ATTR_LEAF_H__ */
fs/xfs/xfs_da_btree.c
View file @ 517c2220
......@@ -143,14 +143,14 @@ xfs_da3_node_hdr_from_disk(
to->forw = be32_to_cpu(hdr3->info.hdr.forw);
to->back = be32_to_cpu(hdr3->info.hdr.back);
to->magic = be16_to_cpu(hdr3->info.hdr.magic);
to->count = be16_to_cpu(hdr3->count);
to->count = be16_to_cpu(hdr3->__count);
to->level = be16_to_cpu(hdr3->__level);
return;
}
to->forw = be32_to_cpu(from->hdr.info.forw);
to->back = be32_to_cpu(from->hdr.info.back);
to->magic = be16_to_cpu(from->hdr.info.magic);
to->count = be16_to_cpu(from->hdr.count);
to->count = be16_to_cpu(from->hdr.__count);
to->level = be16_to_cpu(from->hdr.__level);
}
......@@ -168,14 +168,14 @@ xfs_da3_node_hdr_to_disk(
hdr3->info.hdr.forw = cpu_to_be32(from->forw);
hdr3->info.hdr.back = cpu_to_be32(from->back);
hdr3->info.hdr.magic = cpu_to_be16(from->magic);
hdr3->count = cpu_to_be16(from->count);
hdr3->__count = cpu_to_be16(from->count);
hdr3->__level = cpu_to_be16(from->level);
return;
}
to->hdr.info.forw = cpu_to_be32(from->forw);
to->hdr.info.back = cpu_to_be32(from->back);
to->hdr.info.magic = cpu_to_be16(from->magic);
to->hdr.count = cpu_to_be16(from->count);
to->hdr.__count = cpu_to_be16(from->count);
to->hdr.__level = cpu_to_be16(from->level);
}
......@@ -270,7 +270,7 @@ xfs_da3_node_read_verify(
break;
return;
case XFS_ATTR_LEAF_MAGIC:
bp->b_ops = &xfs_attr_leaf_buf_ops;
bp->b_ops = &xfs_attr3_leaf_buf_ops;
bp->b_ops->verify_read(bp);
return;
case XFS_DIR2_LEAFN_MAGIC:
......@@ -401,7 +401,7 @@ xfs_da3_split(
*/
switch (oldblk->magic) {
case XFS_ATTR_LEAF_MAGIC:
error = xfs_attr_leaf_split(state, oldblk, newblk);
error = xfs_attr3_leaf_split(state, oldblk, newblk);
if ((error != 0) && (error != ENOSPC)) {
return(error); /* GROT: attr is inconsistent */
}
......@@ -416,12 +416,12 @@ xfs_da3_split(
if (state->inleaf) {
state->extraafter = 0; /* before newblk */
trace_xfs_attr_leaf_split_before(state->args);
error = xfs_attr_leaf_split(state, oldblk,
error = xfs_attr3_leaf_split(state, oldblk,
&state->extrablk);
} else {
state->extraafter = 1; /* after newblk */
trace_xfs_attr_leaf_split_after(state->args);
error = xfs_attr_leaf_split(state, newblk,
error = xfs_attr3_leaf_split(state, newblk,
&state->extrablk);
}
if (error)
......@@ -963,12 +963,12 @@ xfs_da3_join(
*/
switch (drop_blk->magic) {
case XFS_ATTR_LEAF_MAGIC:
error = xfs_attr_leaf_toosmall(state, &action);
error = xfs_attr3_leaf_toosmall(state, &action);
if (error)
return(error);
if (action == 0)
return(0);
xfs_attr_leaf_unbalance(state, drop_blk, save_blk);
xfs_attr3_leaf_unbalance(state, drop_blk, save_blk);
break;
case XFS_DIR2_LEAFN_MAGIC:
error = xfs_dir2_leafn_toosmall(state, &action);
......@@ -1024,7 +1024,8 @@ xfs_da_blkinfo_onlychild_validate(struct xfs_da_blkinfo *blkinfo, __u16 level)
if (level == 1) {
ASSERT(magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||
magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC) ||
magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC) ||
magic == cpu_to_be16(XFS_ATTR3_LEAF_MAGIC));
} else {
ASSERT(magic == cpu_to_be16(XFS_DA_NODE_MAGIC) ||
magic == cpu_to_be16(XFS_DA3_NODE_MAGIC));
......@@ -1482,7 +1483,9 @@ xfs_da3_node_lookup_int(
curr = blk->bp->b_addr;
blk->magic = be16_to_cpu(curr->magic);
if (blk->magic == XFS_ATTR_LEAF_MAGIC) {
if (blk->magic == XFS_ATTR_LEAF_MAGIC ||
blk->magic == XFS_ATTR3_LEAF_MAGIC) {
blk->magic = XFS_ATTR_LEAF_MAGIC;
blk->hashval = xfs_attr_leaf_lasthash(blk->bp, NULL);
break;
}
......@@ -1562,7 +1565,7 @@ xfs_da3_node_lookup_int(
retval = xfs_dir2_leafn_lookup_int(blk->bp, args,
&blk->index, state);
} else if (blk->magic == XFS_ATTR_LEAF_MAGIC) {
retval = xfs_attr_leaf_lookup_int(blk->bp, args);
retval = xfs_attr3_leaf_lookup_int(blk->bp, args);
blk->index = args->index;
args->blkno = blk->blkno;
} else {
......@@ -1874,7 +1877,8 @@ xfs_da3_path_shift(
info->magic == cpu_to_be16(XFS_DA3_NODE_MAGIC) ||
info->magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||
info->magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC) ||
info->magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
info->magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC) ||
info->magic == cpu_to_be16(XFS_ATTR3_LEAF_MAGIC));
/*
......@@ -1896,6 +1900,7 @@ xfs_da3_path_shift(
blkno = be32_to_cpu(btree[blk->index].before);
break;
case XFS_ATTR_LEAF_MAGIC:
case XFS_ATTR3_LEAF_MAGIC:
blk->magic = XFS_ATTR_LEAF_MAGIC;
ASSERT(level == path->active-1);
blk->index = 0;
......@@ -2626,6 +2631,7 @@ xfs_da_read_buf(
XFS_TEST_ERROR((magic != XFS_DA_NODE_MAGIC) &&
(magic != XFS_DA3_NODE_MAGIC) &&
(magic != XFS_ATTR_LEAF_MAGIC) &&
(magic != XFS_ATTR3_LEAF_MAGIC) &&
(magic != XFS_DIR2_LEAF1_MAGIC) &&
(magic != XFS_DIR3_LEAF1_MAGIC) &&
(magic != XFS_DIR2_LEAFN_MAGIC) &&
......
fs/xfs/xfs_da_btree.h
View file @ 517c2220
......@@ -55,6 +55,7 @@ typedef struct xfs_da_blkinfo {
* magic numbers without modification for both v2 and v3 nodes.
*/
#define XFS_DA3_NODE_MAGIC 0x3ebe /* magic number: non-leaf blocks */
#define XFS_ATTR3_LEAF_MAGIC 0x3bee /* magic number: attribute leaf blks */
#define XFS_DIR3_LEAF1_MAGIC 0x3df1 /* magic number: v2 dirlf single blks */
#define XFS_DIR3_LEAFN_MAGIC 0x3dff /* magic number: v2 dirlf multi blks */
......@@ -85,13 +86,13 @@ struct xfs_da3_blkinfo {
typedef struct xfs_da_node_hdr {
struct xfs_da_blkinfo info; /* block type, links, etc. */
__be16 count; /* count of active entries */
__be16 __count; /* count of active entries */
__be16 __level; /* level above leaves (leaf == 0) */
} xfs_da_node_hdr_t;
struct xfs_da3_node_hdr {
struct xfs_da3_blkinfo info; /* block type, links, etc. */
__be16 count; /* count of active entries */
__be16 __count; /* count of active entries */
__be16 __level; /* level above leaves (leaf == 0) */
__be32 __pad32;
};
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7