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Kirill Smelkov
linux
Commits
eb8171b8
Commit
eb8171b8
authored
Jan 31, 2004
by
Russell Cattelan
Committed by
Christoph Hellwig
Jan 31, 2004
Browse files
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Plain Diff
[XFS] Move bits around to better manage common code. No functional change.
parent
2c640f57
Changes
20
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Inline
Side-by-side
Showing
20 changed files
with
317 additions
and
346 deletions
+317
-346
fs/xfs/Makefile
fs/xfs/Makefile
+5
-7
fs/xfs/linux/kmem.h
fs/xfs/linux/kmem.h
+0
-0
fs/xfs/linux/mrlock.c
fs/xfs/linux/mrlock.c
+0
-0
fs/xfs/linux/mrlock.h
fs/xfs/linux/mrlock.h
+0
-0
fs/xfs/linux/mutex.h
fs/xfs/linux/mutex.h
+0
-0
fs/xfs/linux/sema.h
fs/xfs/linux/sema.h
+0
-0
fs/xfs/linux/spin.h
fs/xfs/linux/spin.h
+0
-0
fs/xfs/linux/sv.h
fs/xfs/linux/sv.h
+0
-0
fs/xfs/linux/time.h
fs/xfs/linux/time.h
+0
-0
fs/xfs/linux/xfs_buf.c
fs/xfs/linux/xfs_buf.c
+5
-2
fs/xfs/linux/xfs_buf.h
fs/xfs/linux/xfs_buf.h
+281
-3
fs/xfs/linux/xfs_linux.h
fs/xfs/linux/xfs_linux.h
+20
-13
fs/xfs/support/ktrace.c
fs/xfs/support/ktrace.c
+2
-2
fs/xfs/support/ktrace.h
fs/xfs/support/ktrace.h
+1
-1
fs/xfs/support/uuid.c
fs/xfs/support/uuid.c
+3
-3
fs/xfs/xfs.h
fs/xfs/xfs.h
+0
-7
fs/xfs/xfs_behavior.c
fs/xfs/xfs_behavior.c
+0
-0
fs/xfs/xfs_behavior.h
fs/xfs/xfs_behavior.h
+0
-0
fs/xfs/xfs_buf.h
fs/xfs/xfs_buf.h
+0
-308
fs/xfs/xfs_iomap.c
fs/xfs/xfs_iomap.c
+0
-0
No files found.
fs/xfs/Makefile
View file @
eb8171b8
...
...
@@ -30,7 +30,7 @@
# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
#
EXTRA_CFLAGS
+=
-Ifs
/xfs
-funsigned-char
EXTRA_CFLAGS
+=
-Ifs
/xfs
-
Ifs
/xfs/linux
-
funsigned-char
ifeq
($(CONFIG_XFS_DEBUG),y)
EXTRA_CFLAGS
+=
-g
-DSTATIC
=
""
-DDEBUG
-DXFSDEBUG
...
...
@@ -83,6 +83,7 @@ xfs-y += xfs_alloc.o \
xfs_alloc_btree.o
\
xfs_attr.o
\
xfs_attr_leaf.o
\
xfs_behavior.o
\
xfs_bit.o
\
xfs_bmap.o
\
xfs_bmap_btree.o
\
...
...
@@ -106,6 +107,7 @@ xfs-y += xfs_alloc.o \
xfs_inode.o
\
xfs_inode_item.o
\
xfs_iocore.o
\
xfs_iomap.o
\
xfs_itable.o
\
xfs_dfrag.o
\
xfs_log.o
\
...
...
@@ -126,18 +128,15 @@ xfs-y += xfs_alloc.o \
xfs-$(CONFIG_XFS_TRACE)
+=
xfs_dir2_trace.o
# Objects in pagebuf/
xfs-y
+=
pagebuf/page_buf.o
# Objects in linux/
xfs-y
+=
$(
addprefix
linux/,
\
mrlock.o
\
xfs_aops.o
\
xfs_b
ehavior
.o
\
xfs_b
uf
.o
\
xfs_file.o
\
xfs_fs_subr.o
\
xfs_globals.o
\
xfs_ioctl.o
\
xfs_iomap.o
\
xfs_iops.o
\
xfs_lrw.o
\
xfs_super.o
\
...
...
@@ -148,7 +147,6 @@ xfs-y += $(addprefix linux/, \
xfs-y
+=
$(
addprefix
support/,
\
debug.o
\
move.o
\
mrlock.o
\
qsort.o
\
uuid.o
)
...
...
fs/xfs/
support
/kmem.h
→
fs/xfs/
linux
/kmem.h
View file @
eb8171b8
File moved
fs/xfs/
support
/mrlock.c
→
fs/xfs/
linux
/mrlock.c
View file @
eb8171b8
File moved
fs/xfs/
support
/mrlock.h
→
fs/xfs/
linux
/mrlock.h
View file @
eb8171b8
File moved
fs/xfs/
support
/mutex.h
→
fs/xfs/
linux
/mutex.h
View file @
eb8171b8
File moved
fs/xfs/
support
/sema.h
→
fs/xfs/
linux
/sema.h
View file @
eb8171b8
File moved
fs/xfs/
support
/spin.h
→
fs/xfs/
linux
/spin.h
View file @
eb8171b8
File moved
fs/xfs/
support
/sv.h
→
fs/xfs/
linux
/sv.h
View file @
eb8171b8
File moved
fs/xfs/
support
/time.h
→
fs/xfs/
linux
/time.h
View file @
eb8171b8
File moved
fs/xfs/
pagebuf/page
_buf.c
→
fs/xfs/
linux/xfs
_buf.c
View file @
eb8171b8
...
...
@@ -62,9 +62,12 @@
#include <support/ktrace.h>
#include <support/debug.h>
#include
<support/kmem.h>
#include
"kmem.h"
#include "page_buf.h"
#include "xfs_types.h"
#include "xfs_cred.h"
#include "xfs_lrw.h"
#include "xfs_buf.h"
#define BBSHIFT 9
#define BN_ALIGN_MASK ((1 << (PAGE_CACHE_SHIFT - BBSHIFT)) - 1)
...
...
fs/xfs/
pagebuf/page
_buf.h
→
fs/xfs/
linux/xfs
_buf.h
View file @
eb8171b8
...
...
@@ -34,8 +34,8 @@
* Written by Steve Lord, Jim Mostek, Russell Cattelan at SGI
*/
#ifndef __
PAGE
_BUF_H__
#define __
PAGE
_BUF_H__
#ifndef __
XFS
_BUF_H__
#define __
XFS
_BUF_H__
#include <linux/config.h>
#include <linux/list.h>
...
...
@@ -337,4 +337,282 @@ extern void pagebuf_trace(
#define pagebuf_target_name(target) \
({ char __b[BDEVNAME_SIZE]; bdevname((target)->pbr_bdev, __b); __b; })
#endif
/* __PAGE_BUF_H__ */
/* These are just for xfs_syncsub... it sets an internal variable
* then passes it to VOP_FLUSH_PAGES or adds the flags to a newly gotten buf_t
*/
#define XFS_B_ASYNC PBF_ASYNC
#define XFS_B_DELWRI PBF_DELWRI
#define XFS_B_READ PBF_READ
#define XFS_B_WRITE PBF_WRITE
#define XFS_B_STALE PBF_STALE
#define XFS_BUF_TRYLOCK PBF_TRYLOCK
#define XFS_INCORE_TRYLOCK PBF_TRYLOCK
#define XFS_BUF_LOCK PBF_LOCK
#define XFS_BUF_MAPPED PBF_MAPPED
#define BUF_BUSY PBF_DONT_BLOCK
#define XFS_BUF_BFLAGS(x) ((x)->pb_flags)
#define XFS_BUF_ZEROFLAGS(x) \
((x)->pb_flags &= ~(PBF_READ|PBF_WRITE|PBF_ASYNC|PBF_SYNC|PBF_DELWRI))
#define XFS_BUF_STALE(x) ((x)->pb_flags |= XFS_B_STALE)
#define XFS_BUF_UNSTALE(x) ((x)->pb_flags &= ~XFS_B_STALE)
#define XFS_BUF_ISSTALE(x) ((x)->pb_flags & XFS_B_STALE)
#define XFS_BUF_SUPER_STALE(x) do { \
XFS_BUF_STALE(x); \
xfs_buf_undelay(x); \
XFS_BUF_DONE(x); \
} while (0)
#define XFS_BUF_MANAGE PBF_FS_MANAGED
#define XFS_BUF_UNMANAGE(x) ((x)->pb_flags &= ~PBF_FS_MANAGED)
static
inline
void
xfs_buf_undelay
(
page_buf_t
*
pb
)
{
if
(
pb
->
pb_flags
&
PBF_DELWRI
)
{
if
(
pb
->
pb_list
.
next
!=
&
pb
->
pb_list
)
{
pagebuf_delwri_dequeue
(
pb
);
pagebuf_rele
(
pb
);
}
else
{
pb
->
pb_flags
&=
~
PBF_DELWRI
;
}
}
}
#define XFS_BUF_DELAYWRITE(x) ((x)->pb_flags |= PBF_DELWRI)
#define XFS_BUF_UNDELAYWRITE(x) xfs_buf_undelay(x)
#define XFS_BUF_ISDELAYWRITE(x) ((x)->pb_flags & PBF_DELWRI)
#define XFS_BUF_ERROR(x,no) pagebuf_ioerror(x,no)
#define XFS_BUF_GETERROR(x) pagebuf_geterror(x)
#define XFS_BUF_ISERROR(x) (pagebuf_geterror(x)?1:0)
#define XFS_BUF_DONE(x) ((x)->pb_flags &= ~(PBF_PARTIAL|PBF_NONE))
#define XFS_BUF_UNDONE(x) ((x)->pb_flags |= PBF_PARTIAL|PBF_NONE)
#define XFS_BUF_ISDONE(x) (!(PBF_NOT_DONE(x)))
#define XFS_BUF_BUSY(x) ((x)->pb_flags |= PBF_FORCEIO)
#define XFS_BUF_UNBUSY(x) ((x)->pb_flags &= ~PBF_FORCEIO)
#define XFS_BUF_ISBUSY(x) (1)
#define XFS_BUF_ASYNC(x) ((x)->pb_flags |= PBF_ASYNC)
#define XFS_BUF_UNASYNC(x) ((x)->pb_flags &= ~PBF_ASYNC)
#define XFS_BUF_ISASYNC(x) ((x)->pb_flags & PBF_ASYNC)
#define XFS_BUF_FLUSH(x) ((x)->pb_flags |= PBF_FLUSH)
#define XFS_BUF_UNFLUSH(x) ((x)->pb_flags &= ~PBF_FLUSH)
#define XFS_BUF_ISFLUSH(x) ((x)->pb_flags & PBF_FLUSH)
#define XFS_BUF_SHUT(x) printk("XFS_BUF_SHUT not implemented yet\n")
#define XFS_BUF_UNSHUT(x) printk("XFS_BUF_UNSHUT not implemented yet\n")
#define XFS_BUF_ISSHUT(x) (0)
#define XFS_BUF_HOLD(x) pagebuf_hold(x)
#define XFS_BUF_READ(x) ((x)->pb_flags |= PBF_READ)
#define XFS_BUF_UNREAD(x) ((x)->pb_flags &= ~PBF_READ)
#define XFS_BUF_ISREAD(x) ((x)->pb_flags & PBF_READ)
#define XFS_BUF_WRITE(x) ((x)->pb_flags |= PBF_WRITE)
#define XFS_BUF_UNWRITE(x) ((x)->pb_flags &= ~PBF_WRITE)
#define XFS_BUF_ISWRITE(x) ((x)->pb_flags & PBF_WRITE)
#define XFS_BUF_ISUNINITIAL(x) (0)
#define XFS_BUF_UNUNINITIAL(x) (0)
#define XFS_BUF_BP_ISMAPPED(bp) 1
typedef
struct
page_buf_s
xfs_buf_t
;
#define xfs_buf page_buf_s
typedef
struct
pb_target
xfs_buftarg_t
;
#define xfs_buftarg pb_target
#define XFS_BUF_DATAIO(x) ((x)->pb_flags |= PBF_FS_DATAIOD)
#define XFS_BUF_UNDATAIO(x) ((x)->pb_flags &= ~PBF_FS_DATAIOD)
#define XFS_BUF_IODONE_FUNC(buf) (buf)->pb_iodone
#define XFS_BUF_SET_IODONE_FUNC(buf, func) \
(buf)->pb_iodone = (func)
#define XFS_BUF_CLR_IODONE_FUNC(buf) \
(buf)->pb_iodone = NULL
#define XFS_BUF_SET_BDSTRAT_FUNC(buf, func) \
(buf)->pb_strat = (func)
#define XFS_BUF_CLR_BDSTRAT_FUNC(buf) \
(buf)->pb_strat = NULL
#define XFS_BUF_FSPRIVATE(buf, type) \
((type)(buf)->pb_fspriv)
#define XFS_BUF_SET_FSPRIVATE(buf, value) \
(buf)->pb_fspriv = (void *)(value)
#define XFS_BUF_FSPRIVATE2(buf, type) \
((type)(buf)->pb_fspriv2)
#define XFS_BUF_SET_FSPRIVATE2(buf, value) \
(buf)->pb_fspriv2 = (void *)(value)
#define XFS_BUF_FSPRIVATE3(buf, type) \
((type)(buf)->pb_fspriv3)
#define XFS_BUF_SET_FSPRIVATE3(buf, value) \
(buf)->pb_fspriv3 = (void *)(value)
#define XFS_BUF_SET_START(buf)
#define XFS_BUF_SET_BRELSE_FUNC(buf, value) \
(buf)->pb_relse = (value)
#define XFS_BUF_PTR(bp) (xfs_caddr_t)((bp)->pb_addr)
extern
inline
xfs_caddr_t
xfs_buf_offset
(
page_buf_t
*
bp
,
size_t
offset
)
{
if
(
bp
->
pb_flags
&
PBF_MAPPED
)
return
XFS_BUF_PTR
(
bp
)
+
offset
;
return
(
xfs_caddr_t
)
pagebuf_offset
(
bp
,
offset
);
}
#define XFS_BUF_SET_PTR(bp, val, count) \
pagebuf_associate_memory(bp, val, count)
#define XFS_BUF_ADDR(bp) ((bp)->pb_bn)
#define XFS_BUF_SET_ADDR(bp, blk) \
((bp)->pb_bn = (page_buf_daddr_t)(blk))
#define XFS_BUF_OFFSET(bp) ((bp)->pb_file_offset)
#define XFS_BUF_SET_OFFSET(bp, off) \
((bp)->pb_file_offset = (off))
#define XFS_BUF_COUNT(bp) ((bp)->pb_count_desired)
#define XFS_BUF_SET_COUNT(bp, cnt) \
((bp)->pb_count_desired = (cnt))
#define XFS_BUF_SIZE(bp) ((bp)->pb_buffer_length)
#define XFS_BUF_SET_SIZE(bp, cnt) \
((bp)->pb_buffer_length = (cnt))
#define XFS_BUF_SET_VTYPE_REF(bp, type, ref)
#define XFS_BUF_SET_VTYPE(bp, type)
#define XFS_BUF_SET_REF(bp, ref)
#define XFS_BUF_ISPINNED(bp) pagebuf_ispin(bp)
#define XFS_BUF_VALUSEMA(bp) pagebuf_lock_value(bp)
#define XFS_BUF_CPSEMA(bp) (pagebuf_cond_lock(bp) == 0)
#define XFS_BUF_VSEMA(bp) pagebuf_unlock(bp)
#define XFS_BUF_PSEMA(bp,x) pagebuf_lock(bp)
#define XFS_BUF_V_IODONESEMA(bp) up(&bp->pb_iodonesema);
/* setup the buffer target from a buftarg structure */
#define XFS_BUF_SET_TARGET(bp, target) \
(bp)->pb_target = (target)
#define XFS_BUF_TARGET(bp) ((bp)->pb_target)
#define XFS_BUFTARG_NAME(target) \
pagebuf_target_name(target)
#define XFS_BUF_SET_VTYPE_REF(bp, type, ref)
#define XFS_BUF_SET_VTYPE(bp, type)
#define XFS_BUF_SET_REF(bp, ref)
#define xfs_buf_read(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_LOCK | PBF_READ | PBF_MAPPED | PBF_MAPPABLE)
#define xfs_buf_get(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_LOCK | PBF_MAPPED | PBF_MAPPABLE)
#define xfs_buf_read_flags(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_READ | PBF_MAPPABLE | flags)
#define xfs_buf_get_flags(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_MAPPABLE | flags)
static
inline
int
xfs_bawrite
(
void
*
mp
,
page_buf_t
*
bp
)
{
bp
->
pb_fspriv3
=
mp
;
bp
->
pb_strat
=
xfs_bdstrat_cb
;
xfs_buf_undelay
(
bp
);
return
pagebuf_iostart
(
bp
,
PBF_WRITE
|
PBF_ASYNC
|
PBF_RUN_QUEUES
);
}
static
inline
void
xfs_buf_relse
(
page_buf_t
*
bp
)
{
if
((
bp
->
pb_flags
&
_PBF_LOCKABLE
)
&&
!
bp
->
pb_relse
)
pagebuf_unlock
(
bp
);
pagebuf_rele
(
bp
);
}
#define xfs_bpin(bp) pagebuf_pin(bp)
#define xfs_bunpin(bp) pagebuf_unpin(bp)
#define xfs_buftrace(id, bp) \
pagebuf_trace(bp, id, NULL, (void *)__builtin_return_address(0))
#define xfs_biodone(pb) \
pagebuf_iodone(pb, (pb->pb_flags & PBF_FS_DATAIOD), 0)
#define xfs_incore(buftarg,blkno,len,lockit) \
pagebuf_find(buftarg, blkno ,len, lockit)
#define xfs_biomove(pb, off, len, data, rw) \
pagebuf_iomove((pb), (off), (len), (data), \
((rw) == XFS_B_WRITE) ? PBRW_WRITE : PBRW_READ)
#define xfs_biozero(pb, off, len) \
pagebuf_iomove((pb), (off), (len), NULL, PBRW_ZERO)
static
inline
int
XFS_bwrite
(
page_buf_t
*
pb
)
{
int
iowait
=
(
pb
->
pb_flags
&
PBF_ASYNC
)
==
0
;
int
error
=
0
;
pb
->
pb_flags
|=
PBF_SYNC
;
if
(
!
iowait
)
pb
->
pb_flags
|=
PBF_RUN_QUEUES
;
xfs_buf_undelay
(
pb
);
pagebuf_iostrategy
(
pb
);
if
(
iowait
)
{
error
=
pagebuf_iowait
(
pb
);
xfs_buf_relse
(
pb
);
}
return
error
;
}
#define XFS_bdwrite(pb) \
pagebuf_iostart(pb, PBF_DELWRI | PBF_ASYNC)
static
inline
int
xfs_bdwrite
(
void
*
mp
,
page_buf_t
*
bp
)
{
bp
->
pb_strat
=
xfs_bdstrat_cb
;
bp
->
pb_fspriv3
=
mp
;
return
pagebuf_iostart
(
bp
,
PBF_DELWRI
|
PBF_ASYNC
);
}
#define XFS_bdstrat(bp) pagebuf_iorequest(bp)
#define xfs_iowait(pb) pagebuf_iowait(pb)
/*
* Go through all incore buffers, and release buffers
* if they belong to the given device. This is used in
* filesystem error handling to preserve the consistency
* of its metadata.
*/
#define xfs_binval(buftarg) xfs_flush_buftarg(buftarg)
#define XFS_bflush(buftarg) xfs_flush_buftarg(buftarg)
#define xfs_incore_relse(buftarg,delwri_only,wait) \
xfs_relse_buftarg(buftarg)
#define xfs_baread(target, rablkno, ralen) \
pagebuf_readahead((target), (rablkno), (ralen), PBF_DONT_BLOCK)
#define xfs_buf_get_empty(len, target) pagebuf_get_empty((len), (target))
#define xfs_buf_get_noaddr(len, target) pagebuf_get_no_daddr((len), (target))
#define xfs_buf_free(bp) pagebuf_free(bp)
#endif
/* __XFS_BUF_H__ */
fs/xfs/linux/xfs_linux.h
View file @
eb8171b8
...
...
@@ -55,19 +55,26 @@
#include <asm/byteorder.h>
#include <asm/unaligned.h>
#include <linux/xfs_behavior.h>
#include <linux/xfs_vfs.h>
#include <linux/xfs_cred.h>
#include <linux/xfs_vnode.h>
#include <linux/xfs_stats.h>
#include <linux/xfs_sysctl.h>
#include <linux/xfs_iops.h>
#include <linux/xfs_super.h>
#include <linux/xfs_globals.h>
#include <linux/xfs_fs_subr.h>
#include <linux/xfs_lrw.h>
#include <pagebuf/page_buf.h>
#include <mrlock.h>
#include <spin.h>
#include <sv.h>
#include <mutex.h>
#include <sema.h>
#include <time.h>
#include <kmem.h>
#include <xfs_behavior.h>
#include <xfs_vfs.h>
#include <xfs_cred.h>
#include <xfs_vnode.h>
#include <xfs_stats.h>
#include <xfs_sysctl.h>
#include <xfs_iops.h>
#include <xfs_super.h>
#include <xfs_globals.h>
#include <xfs_fs_subr.h>
#include <xfs_lrw.h>
#include <xfs_buf.h>
/*
* Feature macros (disable/enable)
...
...
fs/xfs/support/ktrace.c
View file @
eb8171b8
...
...
@@ -35,8 +35,8 @@
#include <linux/slab.h>
#include <xfs_types.h>
#include
"kmem.h"
#include
"spin.h"
#include
<kmem.h>
#include
<spin.h>
#include "debug.h"
#include "ktrace.h"
...
...
fs/xfs/support/ktrace.h
View file @
eb8171b8
...
...
@@ -32,7 +32,7 @@
#ifndef __XFS_SUPPORT_KTRACE_H__
#define __XFS_SUPPORT_KTRACE_H__
#include <s
upport/s
pin.h>
#include <spin.h>
/*
* Trace buffer entry structure.
...
...
fs/xfs/support/uuid.c
View file @
eb8171b8
...
...
@@ -33,11 +33,11 @@
#include <linux/types.h>
#include <xfs_types.h>
#include <xfs_arch.h>
#include "time.h"
#include <time.h>
#include <kmem.h>
#include <mutex.h>
#include "uuid.h"
#include "kmem.h"
#include "debug.h"
#include "mutex.h"
static
mutex_t
uuid_monitor
;
static
int
uuid_table_size
;
...
...
fs/xfs/xfs.h
View file @
eb8171b8
...
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@@ -38,18 +38,11 @@
#include <xfs_arch.h>
#include <support/kmem.h>
#include <support/mrlock.h>
#include <support/qsort.h>
#include <support/spin.h>
#include <support/sv.h>
#include <support/ktrace.h>
#include <support/mutex.h>
#include <support/sema.h>
#include <support/debug.h>
#include <support/move.h>
#include <support/uuid.h>
#include <support/time.h>
#include <linux/xfs_linux.h>
...
...
fs/xfs/
linux/
xfs_behavior.c
→
fs/xfs/xfs_behavior.c
View file @
eb8171b8
File moved
fs/xfs/
linux/
xfs_behavior.h
→
fs/xfs/xfs_behavior.h
View file @
eb8171b8
File moved
fs/xfs/xfs_buf.h
deleted
100644 → 0
View file @
2c640f57
/*
* Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
*/
#ifndef __XFS_BUF_H__
#define __XFS_BUF_H__
/* These are just for xfs_syncsub... it sets an internal variable
* then passes it to VOP_FLUSH_PAGES or adds the flags to a newly gotten buf_t
*/
#define XFS_B_ASYNC PBF_ASYNC
#define XFS_B_DELWRI PBF_DELWRI
#define XFS_B_READ PBF_READ
#define XFS_B_WRITE PBF_WRITE
#define XFS_B_STALE PBF_STALE
#define XFS_BUF_TRYLOCK PBF_TRYLOCK
#define XFS_INCORE_TRYLOCK PBF_TRYLOCK
#define XFS_BUF_LOCK PBF_LOCK
#define XFS_BUF_MAPPED PBF_MAPPED
#define BUF_BUSY PBF_DONT_BLOCK
#define XFS_BUF_BFLAGS(x) ((x)->pb_flags)
#define XFS_BUF_ZEROFLAGS(x) \
((x)->pb_flags &= ~(PBF_READ|PBF_WRITE|PBF_ASYNC|PBF_SYNC|PBF_DELWRI))
#define XFS_BUF_STALE(x) ((x)->pb_flags |= XFS_B_STALE)
#define XFS_BUF_UNSTALE(x) ((x)->pb_flags &= ~XFS_B_STALE)
#define XFS_BUF_ISSTALE(x) ((x)->pb_flags & XFS_B_STALE)
#define XFS_BUF_SUPER_STALE(x) do { \
XFS_BUF_STALE(x); \
xfs_buf_undelay(x); \
XFS_BUF_DONE(x); \
} while (0)
#define XFS_BUF_MANAGE PBF_FS_MANAGED
#define XFS_BUF_UNMANAGE(x) ((x)->pb_flags &= ~PBF_FS_MANAGED)
static
inline
void
xfs_buf_undelay
(
page_buf_t
*
pb
)
{
if
(
pb
->
pb_flags
&
PBF_DELWRI
)
{
if
(
pb
->
pb_list
.
next
!=
&
pb
->
pb_list
)
{
pagebuf_delwri_dequeue
(
pb
);
pagebuf_rele
(
pb
);
}
else
{
pb
->
pb_flags
&=
~
PBF_DELWRI
;
}
}
}
#define XFS_BUF_DELAYWRITE(x) ((x)->pb_flags |= PBF_DELWRI)
#define XFS_BUF_UNDELAYWRITE(x) xfs_buf_undelay(x)
#define XFS_BUF_ISDELAYWRITE(x) ((x)->pb_flags & PBF_DELWRI)
#define XFS_BUF_ERROR(x,no) pagebuf_ioerror(x,no)
#define XFS_BUF_GETERROR(x) pagebuf_geterror(x)
#define XFS_BUF_ISERROR(x) (pagebuf_geterror(x)?1:0)
#define XFS_BUF_DONE(x) ((x)->pb_flags &= ~(PBF_PARTIAL|PBF_NONE))
#define XFS_BUF_UNDONE(x) ((x)->pb_flags |= PBF_PARTIAL|PBF_NONE)
#define XFS_BUF_ISDONE(x) (!(PBF_NOT_DONE(x)))
#define XFS_BUF_BUSY(x) ((x)->pb_flags |= PBF_FORCEIO)
#define XFS_BUF_UNBUSY(x) ((x)->pb_flags &= ~PBF_FORCEIO)
#define XFS_BUF_ISBUSY(x) (1)
#define XFS_BUF_ASYNC(x) ((x)->pb_flags |= PBF_ASYNC)
#define XFS_BUF_UNASYNC(x) ((x)->pb_flags &= ~PBF_ASYNC)
#define XFS_BUF_ISASYNC(x) ((x)->pb_flags & PBF_ASYNC)
#define XFS_BUF_FLUSH(x) ((x)->pb_flags |= PBF_FLUSH)
#define XFS_BUF_UNFLUSH(x) ((x)->pb_flags &= ~PBF_FLUSH)
#define XFS_BUF_ISFLUSH(x) ((x)->pb_flags & PBF_FLUSH)
#define XFS_BUF_SHUT(x) printk("XFS_BUF_SHUT not implemented yet\n")
#define XFS_BUF_UNSHUT(x) printk("XFS_BUF_UNSHUT not implemented yet\n")
#define XFS_BUF_ISSHUT(x) (0)
#define XFS_BUF_HOLD(x) pagebuf_hold(x)
#define XFS_BUF_READ(x) ((x)->pb_flags |= PBF_READ)
#define XFS_BUF_UNREAD(x) ((x)->pb_flags &= ~PBF_READ)
#define XFS_BUF_ISREAD(x) ((x)->pb_flags & PBF_READ)
#define XFS_BUF_WRITE(x) ((x)->pb_flags |= PBF_WRITE)
#define XFS_BUF_UNWRITE(x) ((x)->pb_flags &= ~PBF_WRITE)
#define XFS_BUF_ISWRITE(x) ((x)->pb_flags & PBF_WRITE)
#define XFS_BUF_ISUNINITIAL(x) (0)
#define XFS_BUF_UNUNINITIAL(x) (0)
#define XFS_BUF_BP_ISMAPPED(bp) 1
typedef
struct
page_buf_s
xfs_buf_t
;
#define xfs_buf page_buf_s
typedef
struct
pb_target
xfs_buftarg_t
;
#define xfs_buftarg pb_target
#define XFS_BUF_DATAIO(x) ((x)->pb_flags |= PBF_FS_DATAIOD)
#define XFS_BUF_UNDATAIO(x) ((x)->pb_flags &= ~PBF_FS_DATAIOD)
#define XFS_BUF_IODONE_FUNC(buf) (buf)->pb_iodone
#define XFS_BUF_SET_IODONE_FUNC(buf, func) \
(buf)->pb_iodone = (func)
#define XFS_BUF_CLR_IODONE_FUNC(buf) \
(buf)->pb_iodone = NULL
#define XFS_BUF_SET_BDSTRAT_FUNC(buf, func) \
(buf)->pb_strat = (func)
#define XFS_BUF_CLR_BDSTRAT_FUNC(buf) \
(buf)->pb_strat = NULL
#define XFS_BUF_FSPRIVATE(buf, type) \
((type)(buf)->pb_fspriv)
#define XFS_BUF_SET_FSPRIVATE(buf, value) \
(buf)->pb_fspriv = (void *)(value)
#define XFS_BUF_FSPRIVATE2(buf, type) \
((type)(buf)->pb_fspriv2)
#define XFS_BUF_SET_FSPRIVATE2(buf, value) \
(buf)->pb_fspriv2 = (void *)(value)
#define XFS_BUF_FSPRIVATE3(buf, type) \
((type)(buf)->pb_fspriv3)
#define XFS_BUF_SET_FSPRIVATE3(buf, value) \
(buf)->pb_fspriv3 = (void *)(value)
#define XFS_BUF_SET_START(buf)
#define XFS_BUF_SET_BRELSE_FUNC(buf, value) \
(buf)->pb_relse = (value)
#define XFS_BUF_PTR(bp) (xfs_caddr_t)((bp)->pb_addr)
extern
inline
xfs_caddr_t
xfs_buf_offset
(
page_buf_t
*
bp
,
size_t
offset
)
{
if
(
bp
->
pb_flags
&
PBF_MAPPED
)
return
XFS_BUF_PTR
(
bp
)
+
offset
;
return
(
xfs_caddr_t
)
pagebuf_offset
(
bp
,
offset
);
}
#define XFS_BUF_SET_PTR(bp, val, count) \
pagebuf_associate_memory(bp, val, count)
#define XFS_BUF_ADDR(bp) ((bp)->pb_bn)
#define XFS_BUF_SET_ADDR(bp, blk) \
((bp)->pb_bn = (page_buf_daddr_t)(blk))
#define XFS_BUF_OFFSET(bp) ((bp)->pb_file_offset)
#define XFS_BUF_SET_OFFSET(bp, off) \
((bp)->pb_file_offset = (off))
#define XFS_BUF_COUNT(bp) ((bp)->pb_count_desired)
#define XFS_BUF_SET_COUNT(bp, cnt) \
((bp)->pb_count_desired = (cnt))
#define XFS_BUF_SIZE(bp) ((bp)->pb_buffer_length)
#define XFS_BUF_SET_SIZE(bp, cnt) \
((bp)->pb_buffer_length = (cnt))
#define XFS_BUF_SET_VTYPE_REF(bp, type, ref)
#define XFS_BUF_SET_VTYPE(bp, type)
#define XFS_BUF_SET_REF(bp, ref)
#define XFS_BUF_ISPINNED(bp) pagebuf_ispin(bp)
#define XFS_BUF_VALUSEMA(bp) pagebuf_lock_value(bp)
#define XFS_BUF_CPSEMA(bp) (pagebuf_cond_lock(bp) == 0)
#define XFS_BUF_VSEMA(bp) pagebuf_unlock(bp)
#define XFS_BUF_PSEMA(bp,x) pagebuf_lock(bp)
#define XFS_BUF_V_IODONESEMA(bp) up(&bp->pb_iodonesema);
/* setup the buffer target from a buftarg structure */
#define XFS_BUF_SET_TARGET(bp, target) \
(bp)->pb_target = (target)
#define XFS_BUF_TARGET(bp) ((bp)->pb_target)
#define XFS_BUFTARG_NAME(target) \
pagebuf_target_name(target)
#define XFS_BUF_SET_VTYPE_REF(bp, type, ref)
#define XFS_BUF_SET_VTYPE(bp, type)
#define XFS_BUF_SET_REF(bp, ref)
#define xfs_buf_read(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_LOCK | PBF_READ | PBF_MAPPED | PBF_MAPPABLE)
#define xfs_buf_get(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_LOCK | PBF_MAPPED | PBF_MAPPABLE)
#define xfs_buf_read_flags(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_READ | PBF_MAPPABLE | flags)
#define xfs_buf_get_flags(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_MAPPABLE | flags)
static
inline
int
xfs_bawrite
(
void
*
mp
,
page_buf_t
*
bp
)
{
bp
->
pb_fspriv3
=
mp
;
bp
->
pb_strat
=
xfs_bdstrat_cb
;
xfs_buf_undelay
(
bp
);
return
pagebuf_iostart
(
bp
,
PBF_WRITE
|
PBF_ASYNC
|
PBF_RUN_QUEUES
);
}
static
inline
void
xfs_buf_relse
(
page_buf_t
*
bp
)
{
if
((
bp
->
pb_flags
&
_PBF_LOCKABLE
)
&&
!
bp
->
pb_relse
)
pagebuf_unlock
(
bp
);
pagebuf_rele
(
bp
);
}
#define xfs_bpin(bp) pagebuf_pin(bp)
#define xfs_bunpin(bp) pagebuf_unpin(bp)
#define xfs_buftrace(id, bp) \
pagebuf_trace(bp, id, NULL, (void *)__builtin_return_address(0))
#define xfs_biodone(pb) \
pagebuf_iodone(pb, (pb->pb_flags & PBF_FS_DATAIOD), 0)
#define xfs_incore(buftarg,blkno,len,lockit) \
pagebuf_find(buftarg, blkno ,len, lockit)
#define xfs_biomove(pb, off, len, data, rw) \
pagebuf_iomove((pb), (off), (len), (data), \
((rw) == XFS_B_WRITE) ? PBRW_WRITE : PBRW_READ)
#define xfs_biozero(pb, off, len) \
pagebuf_iomove((pb), (off), (len), NULL, PBRW_ZERO)
static
inline
int
XFS_bwrite
(
page_buf_t
*
pb
)
{
int
iowait
=
(
pb
->
pb_flags
&
PBF_ASYNC
)
==
0
;
int
error
=
0
;
pb
->
pb_flags
|=
PBF_SYNC
;
if
(
!
iowait
)
pb
->
pb_flags
|=
PBF_RUN_QUEUES
;
xfs_buf_undelay
(
pb
);
pagebuf_iostrategy
(
pb
);
if
(
iowait
)
{
error
=
pagebuf_iowait
(
pb
);
xfs_buf_relse
(
pb
);
}
return
error
;
}
#define XFS_bdwrite(pb) \
pagebuf_iostart(pb, PBF_DELWRI | PBF_ASYNC)
static
inline
int
xfs_bdwrite
(
void
*
mp
,
page_buf_t
*
bp
)
{
bp
->
pb_strat
=
xfs_bdstrat_cb
;
bp
->
pb_fspriv3
=
mp
;
return
pagebuf_iostart
(
bp
,
PBF_DELWRI
|
PBF_ASYNC
);
}
#define XFS_bdstrat(bp) pagebuf_iorequest(bp)
#define xfs_iowait(pb) pagebuf_iowait(pb)
/*
* Go through all incore buffers, and release buffers
* if they belong to the given device. This is used in
* filesystem error handling to preserve the consistency
* of its metadata.
*/
#define xfs_binval(buftarg) xfs_flush_buftarg(buftarg)
#define XFS_bflush(buftarg) xfs_flush_buftarg(buftarg)
#define xfs_incore_relse(buftarg,delwri_only,wait) \
xfs_relse_buftarg(buftarg)
#define xfs_baread(target, rablkno, ralen) \
pagebuf_readahead((target), (rablkno), (ralen), PBF_DONT_BLOCK)
#define xfs_buf_get_empty(len, target) pagebuf_get_empty((len), (target))
#define xfs_buf_get_noaddr(len, target) pagebuf_get_no_daddr((len), (target))
#define xfs_buf_free(bp) pagebuf_free(bp)
#endif
/* __XFS_BUF_H__ */
fs/xfs/
linux/
xfs_iomap.c
→
fs/xfs/xfs_iomap.c
View file @
eb8171b8
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