Commit 016b9c5f authored by Anton Altaparmakov's avatar Anton Altaparmakov

Merge cantab.net:/usr/src/tng-2.0.11 into cantab.net:/usr/src/tng-2.0.13

parents 59b1ec78 8d9eae15
......@@ -247,6 +247,12 @@ ChangeLog
Note, a technical ChangeLog aimed at kernel hackers is in fs/ntfs/ChangeLog.
2.0.13:
- Internal changes towards using iget5_locked() in preparation for
fake inodes and small cleanups to ntfs_volume structure.
2.0.12:
- Internal cleanups in address space operations made possible by the
changes introduced in the previous release.
2.0.11:
- Internal updates and cleanups introducing the first step towards
fake inode based attribute i/o.
......
......@@ -6,7 +6,7 @@ ToDo:
user open()s a file with i_size > s_maxbytes? Should read_inode()
truncate the visible i_size? Will the user just get -E2BIG (or
whatever) on open()? Or will (s)he be able to open() but lseek() and
read() will fail when s_maxbytes is reached? -> Investigate this!
read() will fail when s_maxbytes is reached? -> Investigate this.
- Implement/allow non-resident index bitmaps in dir.c::ntfs_readdir()
and then also consider initialized_size w.r.t. the bitmaps, etc.
- vcn_to_lcn() should somehow return the correct pointer within the
......@@ -17,14 +17,43 @@ ToDo:
- Consider if ntfs_file_read_compressed_block() shouldn't be coping
with initialized_size < data_size. I don't think it can happen but
it requires more careful consideration.
- CLEANUP: Modularise and reuse code in aops.c. At the moment we have
several copies of almost identicall functions and the functions are
quite big. Modularising them a bit, e.g. a-la get_block(), will make
them cleaner and make code reuse easier.
- CLEANUP: At the moment we have two copies of almost identical
functions in aops.c, can merge them once fake inode address space
based attribute i/o is further developed.
- CLEANUP: Modularising code in aops.c a bit, e.g. a-la get_block(),
will be cleaner and make code reuse easier.
- Modify ntfs_read_locked_inode() to return an error code and update
callers, i.e. ntfs_iget(), to pass that error code up instead of just
using -EIO.
- Enable NFS exporting of NTFS.
- Use iget5_locked() and friends instead of conventional iget().
- Use fake inodes for address space i/o.
2.0.13 - Use iget5_locked() in preparation for fake inodes and small cleanups.
- Remove nr_mft_bits and the now superfluous union with nr_mft_records
from ntfs_volume structure.
- Remove nr_lcn_bits and the now superfluous union with nr_clusters
from ntfs_volume structure.
- Use iget5_locked() and friends instead of conventional iget(). Wrap
the call in fs/ntfs/inode.c::ntfs_iget() and update callers of iget()
to use ntfs_iget(). Leave only one iget() call at mount time so we
don't need an ntfs_iget_mount().
- Change fs/ntfs/inode.c::ntfs_new_extent_inode() to take mft_no as an
additional argument.
2.0.12 - Initial cleanup of address space operations following 2.0.11 changes.
- Merge fs/ntfs/aops.c::end_buffer_read_mst_async() and
fs/ntfs/aops.c::end_buffer_read_file_async() into one function
fs/ntfs/aops.c::end_buffer_read_attr_async() using NInoMstProtected()
to determine whether to apply mst fixups or not.
- Above change allows merging fs/ntfs/aops.c::ntfs_file_read_block()
and fs/ntfs/aops.c::ntfs_mst_readpage() into one function
fs/ntfs/aops.c::ntfs_attr_read_block(). Also, create a tiny wrapper
fs/ntfs/aops.c::ntfs_mst_readpage() to transform the parameters from
the VFS readpage function prototype to the ntfs_attr_read_block()
function prototype.
2.0.11 - Initial preparations for fake inode based attribute i/o.
- Move definition of ntfs_inode_state_bits to fs/ntfs/inode.h and
......
......@@ -5,7 +5,7 @@ obj-$(CONFIG_NTFS_FS) += ntfs.o
ntfs-objs := aops.o attrib.o compress.o debug.o dir.o file.o inode.o mft.o \
mst.o namei.o super.o sysctl.o time.o unistr.o upcase.o
EXTRA_CFLAGS = -DNTFS_VERSION=\"2.0.11\"
EXTRA_CFLAGS = -DNTFS_VERSION=\"2.0.13\"
ifeq ($(CONFIG_NTFS_DEBUG),y)
EXTRA_CFLAGS += -DDEBUG
......
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This diff is collapsed.
......@@ -231,14 +231,16 @@ static inline struct inode *VFS_I(ntfs_inode *ni)
return &((big_ntfs_inode*)ni)->vfs_inode;
}
extern struct inode *ntfs_iget(struct super_block *sb, unsigned long mft_no);
extern struct inode *ntfs_alloc_big_inode(struct super_block *sb);
extern void ntfs_destroy_big_inode(struct inode *inode);
extern void ntfs_clear_big_inode(struct inode *vi);
extern ntfs_inode *ntfs_new_extent_inode(struct super_block *sb);
extern ntfs_inode *ntfs_new_extent_inode(struct super_block *sb,
unsigned long mft_no);
extern void ntfs_clear_extent_inode(ntfs_inode *ni);
extern void ntfs_read_inode(struct inode *vi);
extern void ntfs_read_inode_mount(struct inode *vi);
extern void ntfs_dirty_inode(struct inode *vi);
......
......@@ -102,7 +102,7 @@ extern int ntfs_mst_readpage(struct file *, struct page *);
* ntfs_mft_aops - address space operations for access to $MFT
*
* Address space operations for access to $MFT. This allows us to simply use
* read_cache_page() in map_mft_record().
* ntfs_map_page() in map_mft_record_page().
*/
struct address_space_operations ntfs_mft_aops = {
writepage: NULL, /* Write dirty page to disk. */
......@@ -417,14 +417,13 @@ MFT_RECORD *map_extent_mft_record(ntfs_inode *base_ni, MFT_REF mref,
return m;
}
/* Record wasn't there. Get a new ntfs inode and initialize it. */
ni = ntfs_new_extent_inode(base_ni->vol->sb);
ni = ntfs_new_extent_inode(base_ni->vol->sb, mft_no);
if (!ni) {
up(&base_ni->extent_lock);
atomic_dec(&base_ni->count);
return ERR_PTR(-ENOMEM);
}
ni->vol = base_ni->vol;
ni->mft_no = mft_no;
ni->seq_no = seq_no;
ni->nr_extents = -1;
ni->_INE(base_ntfs_ino) = base_ni;
......
......@@ -38,8 +38,8 @@
* supplying the name of the inode in @dent->d_name.name. ntfs_lookup()
* converts the name to Unicode and walks the contents of the directory inode
* @dir_ino looking for the converted Unicode name. If the name is found in the
* directory, the corresponding inode is loaded by calling iget() on its inode
* number and the inode is associated with the dentry @dent via a call to
* directory, the corresponding inode is loaded by calling ntfs_iget() on its
* inode number and the inode is associated with the dentry @dent via a call to
* d_add().
*
* If the name is not found in the directory, a NULL inode is inserted into the
......@@ -111,9 +111,9 @@ static struct dentry *ntfs_lookup(struct inode *dir_ino, struct dentry *dent)
kmem_cache_free(ntfs_name_cache, uname);
if (!IS_ERR_MREF(mref)) {
dent_ino = MREF(mref);
ntfs_debug("Found inode 0x%lx. Calling iget.", dent_ino);
dent_inode = iget(vol->sb, dent_ino);
if (dent_inode) {
ntfs_debug("Found inode 0x%lx. Calling ntfs_iget.", dent_ino);
dent_inode = ntfs_iget(vol->sb, dent_ino);
if (likely(!IS_ERR(dent_inode))) {
/* Consistency check. */
if (MSEQNO(mref) == NTFS_I(dent_inode)->seq_no ||
dent_ino == FILE_MFT) {
......@@ -132,16 +132,19 @@ static struct dentry *ntfs_lookup(struct inode *dir_ino, struct dentry *dent)
ntfs_error(vol->sb, "Found stale reference to inode "
"0x%lx (reference sequence number = "
"0x%x, inode sequence number = 0x%x, "
"returning -EACCES. Run chkdsk.",
"returning -EIO. Run chkdsk.",
dent_ino, MSEQNO(mref),
NTFS_I(dent_inode)->seq_no);
iput(dent_inode);
dent_inode = ERR_PTR(-EIO);
} else
ntfs_error(vol->sb, "iget(0x%lx) failed, returning "
"-EACCES.", dent_ino);
ntfs_error(vol->sb, "ntfs_iget(0x%lx) failed with "
"error code %li.", dent_ino,
PTR_ERR(dent_inode));
if (name)
kfree(name);
return ERR_PTR(-EACCES);
/* Return the error code. */
return (struct dentry *)dent_inode;
}
/* It is guaranteed that name is no longer allocated at this point. */
if (MREF_ERR(mref) == -ENOENT) {
......@@ -256,7 +259,8 @@ static struct dentry *ntfs_lookup(struct inode *dir_ino, struct dentry *dent)
BUG_ON(real_dent->d_inode != dent_inode);
/*
* Already have the inode and the dentry attached, decrement
* the reference count to balance the iget() we did earlier on.
* the reference count to balance the ntfs_iget() we did
* earlier on.
*/
iput(dent_inode);
return real_dent;
......
This diff is collapsed.
......@@ -3,7 +3,7 @@
* of the Linux-NTFS project.
*
* Copyright (c) 2001,2002 Anton Altaparmakov.
* Copyright (C) 2002 Richard Russon.
* Copyright (c) 2002 Richard Russon.
*
* This program/include file is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published
......@@ -89,10 +89,8 @@ typedef struct {
u32 index_record_size; /* in bytes */
u32 index_record_size_mask; /* index_record_size - 1 */
u8 index_record_size_bits; /* log2(index_record_size) */
union {
LCN nr_clusters; /* Volume size in clusters. */
LCN nr_lcn_bits; /* Number of bits in lcn bitmap. */
} SN(vcl);
LCN nr_clusters; /* Volume size in clusters == number of
bits in lcn bitmap. */
LCN mft_lcn; /* Cluster location of mft data. */
LCN mftmirr_lcn; /* Cluster location of copy of mft. */
u64 serial_no; /* The volume serial number. */
......@@ -104,10 +102,8 @@ typedef struct {
struct inode *mft_ino; /* The VFS inode of $MFT. */
struct rw_semaphore mftbmp_lock; /* Lock for serializing accesses to the
mft record bitmap ($MFT/$BITMAP). */
union {
unsigned long nr_mft_records; /* Number of mft records. */
unsigned long nr_mft_bits; /* Number of bits in mft bitmap. */
} SN(vmm);
unsigned long nr_mft_records; /* Number of mft records == number of
bits in mft bitmap. */
struct address_space mftbmp_mapping; /* Page cache for $MFT/$BITMAP. */
run_list mftbmp_rl; /* Run list for $MFT/$BITMAP. */
s64 mftbmp_size; /* Data size of $MFT/$BITMAP. */
......@@ -128,8 +124,5 @@ typedef struct {
struct nls_table *nls_map;
} ntfs_volume;
#define _VCL(X) SC(vcl,X)
#define _VMM(X) SC(vmm,X)
#endif /* _LINUX_NTFS_VOLUME_H */
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