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authorJiri Kosina <jkosina@suse.cz>2010-03-08 16:55:37 +0100
committerJiri Kosina <jkosina@suse.cz>2010-03-08 16:55:37 +0100
commit318ae2edc3b29216abd8a2510f3f80b764f06858 (patch)
treece595adde342f57f379d277b25e4dd206988a052 /fs
parent25cf84cf377c0aae5dbcf937ea89bc7893db5176 (diff)
parent3e58974027b04e84f68b964ef368a6cd758e2f84 (diff)
Merge branch 'for-next' into for-linus
Conflicts: Documentation/filesystems/proc.txt arch/arm/mach-u300/include/mach/debug-macro.S drivers/net/qlge/qlge_ethtool.c drivers/net/qlge/qlge_main.c drivers/net/typhoon.c
Diffstat (limited to 'fs')
-rw-r--r--fs/affs/bitmap.c2
-rw-r--r--fs/binfmt_elf_fdpic.c2
-rw-r--r--fs/bio.c7
-rw-r--r--fs/buffer.c2
-rw-r--r--fs/cifs/asn1.c2
-rw-r--r--fs/cifs/cifs_dfs_ref.c2
-rw-r--r--fs/cifs/cifssmb.c2
-rw-r--r--fs/dlm/member.c2
-rw-r--r--fs/ext3/super.c2
-rw-r--r--fs/ext4/mballoc.c2
-rw-r--r--fs/ext4/super.c2
-rw-r--r--fs/fuse/inode.c2
-rw-r--r--fs/gfs2/ops_fstype.c2
-rw-r--r--fs/jbd/transaction.c2
-rw-r--r--fs/locks.c2
-rw-r--r--fs/mpage.c2
-rw-r--r--fs/namei.c2
-rw-r--r--fs/nfsd/nfs4xdr.c2
-rw-r--r--fs/ntfs/ChangeLog1702
-rw-r--r--fs/ocfs2/dlmglue.c2
-rw-r--r--fs/ocfs2/extent_map.c2
-rw-r--r--fs/qnx4/inode.c3
-rw-r--r--fs/reiserfs/bitmap.c2
-rw-r--r--fs/udf/inode.c2
24 files changed, 26 insertions, 1728 deletions
diff --git a/fs/affs/bitmap.c b/fs/affs/bitmap.c
index dc5ef14bdc1c..8306d53307ed 100644
--- a/fs/affs/bitmap.c
+++ b/fs/affs/bitmap.c
@@ -128,7 +128,7 @@ err_range:
/*
* Allocate a block in the given allocation zone.
* Since we have to byte-swap the bitmap on little-endian
- * machines, this is rather expensive. Therefor we will
+ * machines, this is rather expensive. Therefore we will
* preallocate up to 16 blocks from the same word, if
* possible. We are not doing preallocations in the
* header zone, though.
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 6d6a16c5e9bb..2c32d00a6690 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1374,7 +1374,7 @@ static inline void fill_note(struct memelfnote *note, const char *name, int type
/*
* fill up all the fields in prstatus from the given task struct, except
- * registers which need to be filled up seperately.
+ * registers which need to be filled up separately.
*/
static void fill_prstatus(struct elf_prstatus *prstatus,
struct task_struct *p, long signr)
diff --git a/fs/bio.c b/fs/bio.c
index dc17afd672e3..e1f922184b45 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -264,13 +264,12 @@ EXPORT_SYMBOL(bio_init);
* bio_alloc_bioset - allocate a bio for I/O
* @gfp_mask: the GFP_ mask given to the slab allocator
* @nr_iovecs: number of iovecs to pre-allocate
- * @bs: the bio_set to allocate from. If %NULL, just use kmalloc
+ * @bs: the bio_set to allocate from.
*
* Description:
- * bio_alloc_bioset will first try its own mempool to satisfy the allocation.
+ * bio_alloc_bioset will try its own mempool to satisfy the allocation.
* If %__GFP_WAIT is set then we will block on the internal pool waiting
- * for a &struct bio to become free. If a %NULL @bs is passed in, we will
- * fall back to just using @kmalloc to allocate the required memory.
+ * for a &struct bio to become free.
*
* Note that the caller must set ->bi_destructor on successful return
* of a bio, to do the appropriate freeing of the bio once the reference
diff --git a/fs/buffer.c b/fs/buffer.c
index 6fa530256bfd..1d920bab5e70 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2893,7 +2893,7 @@ int block_write_full_page_endio(struct page *page, get_block_t *get_block,
/*
* The page straddles i_size. It must be zeroed out on each and every
- * writepage invokation because it may be mmapped. "A file is mapped
+ * writepage invocation because it may be mmapped. "A file is mapped
* in multiples of the page size. For a file that is not a multiple of
* the page size, the remaining memory is zeroed when mapped, and
* writes to that region are not written out to the file."
diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c
index 20692fbfdb24..a20bea598933 100644
--- a/fs/cifs/asn1.c
+++ b/fs/cifs/asn1.c
@@ -136,7 +136,7 @@ asn1_enum_decode(struct asn1_ctx *ctx, __le32 *val)
return 0;
}
- ch = *(ctx->pointer)++; /* ch has 0xa, ptr points to lenght octet */
+ ch = *(ctx->pointer)++; /* ch has 0xa, ptr points to length octet */
if ((ch) == ASN1_ENUM) /* if ch value is ENUM, 0xa */
*val = *(++(ctx->pointer)); /* value has enum value */
else
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index b44ce0a0711c..b1d61d0bdfc7 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -54,7 +54,7 @@ void cifs_dfs_release_automount_timer(void)
* Extracts sharename form full UNC.
* i.e. strips from UNC trailing path that is not part of share
* name and fixup missing '\' in the begining of DFS node refferal
- * if neccessary.
+ * if necessary.
* Returns pointer to share name on success or ERR_PTR on error.
* Caller is responsible for freeing returned string.
*/
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 9d17df3e0768..611835899844 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -3886,7 +3886,7 @@ parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr,
goto parse_DFS_referrals_exit;
}
- /* collect neccessary data from referrals */
+ /* collect necessary data from referrals */
for (i = 0; i < *num_of_nodes; i++) {
char *temp;
int max_len;
diff --git a/fs/dlm/member.c b/fs/dlm/member.c
index 84f70bfb0baf..b12532e553f8 100644
--- a/fs/dlm/member.c
+++ b/fs/dlm/member.c
@@ -312,7 +312,7 @@ int dlm_ls_stop(struct dlm_ls *ls)
/*
* This in_recovery lock does two things:
* 1) Keeps this function from returning until all threads are out
- * of locking routines and locking is truely stopped.
+ * of locking routines and locking is truly stopped.
* 2) Keeps any new requests from being processed until it's unlocked
* when recovery is complete.
*/
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index e844accbf55d..1bee604cc6cd 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -164,7 +164,7 @@ void ext3_msg(struct super_block *sb, const char *prefix,
* write out the superblock safely.
*
* We'll just use the journal_abort() error code to record an error in
- * the journal instead. On recovery, the journal will compain about
+ * the journal instead. On recovery, the journal will complain about
* that error until we've noted it down and cleared it.
*/
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 506713a2ebd8..54df209d2eed 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -69,7 +69,7 @@
*
* pa_lstart -> the logical start block for this prealloc space
* pa_pstart -> the physical start block for this prealloc space
- * pa_len -> lenght for this prealloc space
+ * pa_len -> length for this prealloc space
* pa_free -> free space available in this prealloc space
*
* The inode preallocation space is used looking at the _logical_ start
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 2b83b96cb2eb..6ea6b67c70a2 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -302,7 +302,7 @@ void ext4_journal_abort_handle(const char *caller, const char *err_fn,
* write out the superblock safely.
*
* We'll just use the jbd2_journal_abort() error code to record an error in
- * the journal instead. On recovery, the journal will compain about
+ * the journal instead. On recovery, the journal will complain about
* that error until we've noted it down and cleared it.
*/
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 1a822ce2b24b..ec14d19ce501 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -850,7 +850,7 @@ static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req)
req->in.args[0].size = sizeof(*arg);
req->in.args[0].value = arg;
req->out.numargs = 1;
- /* Variable length arguement used for backward compatibility
+ /* Variable length argument used for backward compatibility
with interface version < 7.5. Rest of init_out is zeroed
by do_get_request(), so a short reply is not a problem */
req->out.argvar = 1;
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index a054b526dc08..c1309ed1c496 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -1001,7 +1001,7 @@ static const struct lm_lockops nolock_ops = {
/**
* gfs2_lm_mount - mount a locking protocol
* @sdp: the filesystem
- * @args: mount arguements
+ * @args: mount arguments
* @silent: if 1, don't complain if the FS isn't a GFS2 fs
*
* Returns: errno
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 99e9fea11077..5ae71e75a491 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -1398,7 +1398,7 @@ int journal_stop(handle_t *handle)
* the case where our storage is so fast that it is more optimal to go
* ahead and force a flush and wait for the transaction to be committed
* than it is to wait for an arbitrary amount of time for new writers to
- * join the transaction. We acheive this by measuring how long it takes
+ * join the transaction. We achieve this by measuring how long it takes
* to commit a transaction, and compare it with how long this
* transaction has been running, and if run time < commit time then we
* sleep for the delta and commit. This greatly helps super fast disks
diff --git a/fs/locks.c b/fs/locks.c
index ae9ded026b7c..ab24d49fc048 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1455,7 +1455,7 @@ EXPORT_SYMBOL(generic_setlease);
* leases held by processes on this node.
*
* There is also no break_lease method; filesystems that
- * handle their own leases shoud break leases themselves from the
+ * handle their own leases should break leases themselves from the
* filesystem's open, create, and (on truncate) setattr methods.
*
* Warning: the only current setlease methods exist only to disable
diff --git a/fs/mpage.c b/fs/mpage.c
index 42381bd6543b..598d54e200eb 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -561,7 +561,7 @@ page_is_mapped:
if (page->index >= end_index) {
/*
* The page straddles i_size. It must be zeroed out on each
- * and every writepage invokation because it may be mmapped.
+ * and every writepage invocation because it may be mmapped.
* "A file is mapped in multiples of the page size. For a file
* that is not a multiple of the page size, the remaining memory
* is zeroed when mapped, and writes to that region are not
diff --git a/fs/namei.c b/fs/namei.c
index 48e60a187325..1c0fca6e899e 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2544,7 +2544,7 @@ SYSCALL_DEFINE2(link, const char __user *, oldname, const char __user *, newname
* e) conversion from fhandle to dentry may come in the wrong moment - when
* we are removing the target. Solution: we will have to grab ->i_mutex
* in the fhandle_to_dentry code. [FIXME - current nfsfh.c relies on
- * ->i_mutex on parents, which works but leads to some truely excessive
+ * ->i_mutex on parents, which works but leads to some truly excessive
* locking].
*/
static int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry,
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 78c7e24e5129..c47b4d7bafa7 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1528,7 +1528,7 @@ static void write_cinfo(__be32 **p, struct nfsd4_change_info *c)
} } while (0);
/* Encode as an array of strings the string given with components
- * seperated @sep.
+ * separated @sep.
*/
static __be32 nfsd4_encode_components(char sep, char *components,
__be32 **pp, int *buflen)
diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog
deleted file mode 100644
index 37c11e194372..000000000000
--- a/fs/ntfs/ChangeLog
+++ /dev/null
@@ -1,1702 +0,0 @@
-ToDo/Notes:
- - Find and fix bugs.
- - The only places in the kernel where a file is resized are
- ntfs_file_write*() and ntfs_truncate() for both of which i_mutex is
- held. Just have to be careful in read-/writepage and other helpers
- not running under i_mutex that we play nice. Also need to be careful
- with initialized_size extension in ntfs_file_write*() and writepage.
- UPDATE: The only things that need to be checked are the compressed
- write and the other attribute resize/write cases like index
- attributes, etc. For now none of these are implemented so are safe.
- - Implement filling in of holes in aops.c::ntfs_writepage() and its
- helpers.
- - Implement mft.c::sync_mft_mirror_umount(). We currently will just
- leave the volume dirty on umount if the final iput(vol->mft_ino)
- causes a write of any mirrored mft records due to the mft mirror
- inode having been discarded already. Whether this can actually ever
- happen is unclear however so it is worth waiting until someone hits
- the problem.
-
-2.1.29 - Fix a deadlock at mount time.
-
- - During mount the VFS holds s_umount lock on the superblock. So when
- we try to empty the journal $LogFile contents by calling
- ntfs_attr_set() when the machine does not have much memory and the
- journal is large ntfs_attr_set() results in the VM trying to balance
- dirty pages which in turn tries to that the s_umount lock and thus we
- get a deadlock. The solution is to not use ntfs_attr_set() and
- instead do the zeroing by hand at the block level rather than page
- cache level.
- - Fix sparse warnings.
-
-2.1.28 - Fix a deadlock.
-
- - Fix deadlock in fs/ntfs/inode.c::ntfs_put_inode(). Thanks to Sergey
- Vlasov for the report and detailed analysis of the deadlock. The fix
- involved getting rid of ntfs_put_inode() altogether and hence NTFS no
- longer has a ->put_inode super operation.
-
-2.1.27 - Various bug fixes and cleanups.
-
- - Fix two compiler warnings on Alpha. Thanks to Andrew Morton for
- reporting them.
- - Fix an (innocent) off-by-one error in the runlist code.
- - Fix a buggette in an "should be impossible" case handling where we
- continued the attribute lookup loop instead of aborting it.
- - Use buffer_migrate_page() for the ->migratepage function of all ntfs
- address space operations.
- - Fix comparison of $MFT and $MFTMirr to not bail out when there are
- unused, invalid mft records which are the same in both $MFT and
- $MFTMirr.
- - Add support for sparse files which have a compression unit of 0.
- - Remove all the make_bad_inode() calls. This should only be called
- from read inode and new inode code paths.
- - Limit name length in fs/ntfs/unistr.c::ntfs_nlstoucs() to maximum
- allowed by NTFS, i.e. 255 Unicode characters, not including the
- terminating NULL (which is not stored on disk).
- - Improve comments on file attribute flags in fs/ntfs/layout.h.
- - Fix a bug in fs/ntfs/inode.c::ntfs_read_locked_index_inode() where we
- forgot to update a temporary variable so loading index inodes which
- have an index allocation attribute failed.
- - Add a missing call to flush_dcache_mft_record_page() in
- fs/ntfs/inode.c::ntfs_write_inode().
- - Handle the recently introduced -ENAMETOOLONG return value from
- fs/ntfs/unistr.c::ntfs_nlstoucs() in fs/ntfs/namei.c::ntfs_lookup().
- - Semaphore to mutex conversion. (Ingo Molnar)
-
-2.1.26 - Minor bug fixes and updates.
-
- - Fix a potential overflow in file.c where a cast to s64 was missing in
- a left shift of a page index.
- - The struct inode has had its i_sem semaphore changed to a mutex named
- i_mutex.
- - We have struct kmem_cache now so use it instead of the typedef
- kmem_cache_t. (Pekka Enberg)
- - Implement support for sector sizes above 512 bytes (up to the maximum
- supported by NTFS which is 4096 bytes).
- - Do more detailed reporting of why we cannot mount read-write by
- special casing the VOLUME_MODIFIED_BY_CHKDSK flag.
- - Miscellaneous updates to layout.h.
- - Cope with attribute list attribute having invalid flags. Windows
- copes with this and even chkdsk does not detect or fix this so we
- have to cope with it, too. Thanks to Pawel Kot for reporting the
- problem.
-
-2.1.25 - (Almost) fully implement write(2) and truncate(2).
-
- - Change ntfs_map_runlist_nolock(), ntfs_attr_find_vcn_nolock() and
- {__,}ntfs_cluster_free() to also take an optional attribute search
- context as argument. This allows calling these functions with the
- mft record mapped. Update all callers.
- - Fix potential deadlock in ntfs_mft_data_extend_allocation_nolock()
- error handling by passing in the active search context when calling
- ntfs_cluster_free().
- - Change ntfs_cluster_alloc() to take an extra boolean parameter
- specifying whether the cluster are being allocated to extend an
- attribute or to fill a hole.
- - Change ntfs_attr_make_non_resident() to call ntfs_cluster_alloc()
- with @is_extension set to TRUE and remove the runlist terminator
- fixup code as this is now done by ntfs_cluster_alloc().
- - Change ntfs_attr_make_non_resident to take the attribute value size
- as an extra parameter. This is needed since we need to know the size
- before we can map the mft record and our callers always know it. The
- reason we cannot simply read the size from the vfs inode i_size is
- that this is not necessarily uptodate. This happens when
- ntfs_attr_make_non_resident() is called in the ->truncate call path.
- - Fix ntfs_attr_make_non_resident() to update the vfs inode i_blocks
- which is zero for a resident attribute but should no longer be zero
- once the attribute is non-resident as it then has real clusters
- allocated.
- - Add fs/ntfs/attrib.[hc]::ntfs_attr_extend_allocation(), a function to
- extend the allocation of an attributes. Optionally, the data size,
- but not the initialized size can be extended, too.
- - Implement fs/ntfs/inode.[hc]::ntfs_truncate(). It only supports
- uncompressed and unencrypted files and it never creates sparse files
- at least for the moment (making a file sparse requires us to modify
- its directory entries and we do not support directory operations at
- the moment). Also, support for highly fragmented files, i.e. ones
- whose data attribute is split across multiple extents, is severly
- limited. When such a case is encountered, EOPNOTSUPP is returned.
- - Enable ATTR_SIZE attribute changes in ntfs_setattr(). This completes
- the initial implementation of file truncation. Now both open(2)ing
- a file with the O_TRUNC flag and the {,f}truncate(2) system calls
- will resize a file appropriately. The limitations are that only
- uncompressed and unencrypted files are supported. Also, there is
- only very limited support for highly fragmented files (the ones whose
- $DATA attribute is split into multiple attribute extents).
- - In attrib.c::ntfs_attr_set() call balance_dirty_pages_ratelimited()
- and cond_resched() in the main loop as we could be dirtying a lot of
- pages and this ensures we play nice with the VM and the system as a
- whole.
- - Implement file operations ->write, ->aio_write, ->writev for regular
- files. This replaces the old use of generic_file_write(), et al and
- the address space operations ->prepare_write and ->commit_write.
- This means that both sparse and non-sparse (unencrypted and
- uncompressed) files can now be extended using the normal write(2)
- code path. There are two limitations at present and these are that
- we never create sparse files and that we only have limited support
- for highly fragmented files, i.e. ones whose data attribute is split
- across multiple extents. When such a case is encountered,
- EOPNOTSUPP is returned.
- - $EA attributes can be both resident and non-resident.
- - Use %z for size_t to fix compilation warnings. (Andrew Morton)
- - Fix compilation warnings with gcc-4.0.2 on SUSE 10.0.
- - Document extended attribute ($EA) NEED_EA flag. (Based on libntfs
- patch by Yura Pakhuchiy.)
-
-2.1.24 - Lots of bug fixes and support more clean journal states.
-
- - Support journals ($LogFile) which have been modified by chkdsk. This
- means users can boot into Windows after we marked the volume dirty.
- The Windows boot will run chkdsk and then reboot. The user can then
- immediately boot into Linux rather than having to do a full Windows
- boot first before rebooting into Linux and we will recognize such a
- journal and empty it as it is clean by definition. Note, this only
- works if chkdsk left the journal in an obviously clean state.
- - Support journals ($LogFile) with only one restart page as well as
- journals with two different restart pages. We sanity check both and
- either use the only sane one or the more recent one of the two in the
- case that both are valid.
- - Add fs/ntfs/malloc.h::ntfs_malloc_nofs_nofail() which is analogous to
- ntfs_malloc_nofs() but it performs allocations with __GFP_NOFAIL and
- hence cannot fail.
- - Use ntfs_malloc_nofs_nofail() in the two critical regions in
- fs/ntfs/runlist.c::ntfs_runlists_merge(). This means we no longer
- need to panic() if the allocation fails as it now cannot fail.
- - Fix two nasty runlist merging bugs that had gone unnoticed so far.
- Thanks to Stefano Picerno for the bug report.
- - Remove two bogus BUG_ON()s from fs/ntfs/mft.c.
- - Fix handling of valid but empty mapping pairs array in
- fs/ntfs/runlist.c::ntfs_mapping_pairs_decompress().
- - Report unrepresentable inodes during ntfs_readdir() as KERN_WARNING
- messages and include the inode number. Thanks to Yura Pakhuchiy for
- pointing this out.
- - Change ntfs_rl_truncate_nolock() to throw away the runlist if the new
- length is zero.
- - Add runlist.[hc]::ntfs_rl_punch_nolock() which punches a caller
- specified hole into a runlist.
- - Fix a bug in fs/ntfs/index.c::ntfs_index_lookup(). When the returned
- index entry is in the index root, we forgot to set the @ir pointer in
- the index context. Thanks to Yura Pakhuchiy for finding this bug.
- - Remove bogus setting of PageError in ntfs_read_compressed_block().
- - Add fs/ntfs/attrib.[hc]::ntfs_resident_attr_value_resize().
- - Fix a bug in ntfs_map_runlist_nolock() where we forgot to protect
- access to the allocated size in the ntfs inode with the size lock.
- - Fix ntfs_attr_vcn_to_lcn_nolock() and ntfs_attr_find_vcn_nolock() to
- return LCN_ENOENT when there is no runlist and the allocated size is
- zero.
- - Fix load_attribute_list() to handle the case of a NULL runlist.
- - Fix handling of sparse attributes in ntfs_attr_make_non_resident().
- - Add BUG() checks to ntfs_attr_make_non_resident() and ntfs_attr_set()
- to ensure that these functions are never called for compressed or
- encrypted attributes.
- - Fix cluster (de)allocators to work when the runlist is NULL and more
- importantly to take a locked runlist rather than them locking it
- which leads to lock reversal.
- - Truncate {a,c,m}time to the ntfs supported time granularity when
- updating the times in the inode in ntfs_setattr().
- - Fixup handling of sparse, compressed, and encrypted attributes in
- fs/ntfs/inode.c::ntfs_read_locked_{,attr_,index_}inode(),
- fs/ntfs/aops.c::ntfs_{read,write}page().
- - Make ntfs_write_block() not instantiate sparse blocks if they contain
- only zeroes.
- - Optimize fs/ntfs/aops.c::ntfs_write_block() by extending the page
- lock protection over the buffer submission for i/o which allows the
- removal of the get_bh()/put_bh() pairs for each buffer.
- - Fix fs/ntfs/aops.c::ntfs_{read,write}_block() to handle the case
- where a concurrent truncate has truncated the runlist under our feet.
- - Fix page_has_buffers()/page_buffers() handling in fs/ntfs/aops.c.
- - In fs/ntfs/aops.c::ntfs_end_buffer_async_read(), use a bit spin lock
- in the first buffer head instead of a driver global spin lock to
- improve scalability.
- - Minor fix to error handling and error message display in
- fs/ntfs/aops.c::ntfs_prepare_nonresident_write().
- - Change the mount options {u,f,d}mask to always parse the number as
- an octal number to conform to how chmod(1) works, too. Thanks to
- Giuseppe Bilotta and Horst von Brand for pointing out the errors of
- my ways.
- - Fix various bugs in the runlist merging code. (Based on libntfs
- changes by Richard Russon.)
- - Fix sparse warnings that have crept in over time.
- - Change ntfs_cluster_free() to require a write locked runlist on entry
- since we otherwise get into a lock reversal deadlock if a read locked
- runlist is passed in. In the process also change it to take an ntfs
- inode instead of a vfs inode as parameter.
- - Fix the definition of the CHKD ntfs record magic. It had an off by
- two error causing it to be CHKB instead of CHKD.
- - Fix a stupid bug in __ntfs_bitmap_set_bits_in_run() which caused the
- count to become negative and hence we had a wild memset() scribbling
- all over the system's ram.
-
-2.1.23 - Implement extension of resident files and make writing safe as well as
- many bug fixes, cleanups, and enhancements...
-
- - Add printk rate limiting for ntfs_warning() and ntfs_error() when
- compiled without debug. This avoids a possible denial of service
- attack. Thanks to Carl-Daniel Hailfinger from SuSE for pointing this
- out.
- - Fix compilation warnings on ia64. (Randy Dunlap)
- - Use i_size_{read,write}() instead of reading i_size by hand and cache
- the value where apropriate.
- - Add size_lock to the ntfs_inode structure. This is an rw spinlock
- and it locks against access to the inode sizes. Note, ->size_lock
- is also accessed from irq context so you must use the _irqsave and
- _irqrestore lock and unlock functions, respectively. Protect all
- accesses to allocated_size, initialized_size, and compressed_size.
- - Minor optimization to fs/ntfs/super.c::ntfs_statfs() and its helpers.
- - Implement extension of resident files in the regular file write code
- paths (fs/ntfs/aops.c::ntfs_{prepare,commit}_write()). At present
- this only works until the data attribute becomes too big for the mft
- record after which we abort the write returning -EOPNOTSUPP from
- ntfs_prepare_write().
- - Add disable_sparse mount option together with a per volume sparse
- enable bit which is set appropriately and a per inode sparse disable
- bit which is preset on some system file inodes as appropriate.
- - Enforce that sparse support is disabled on NTFS volumes pre 3.0.
- - Fix a bug in fs/ntfs/runlist.c::ntfs_mapping_pairs_decompress() in
- the creation of the unmapped runlist element for the base attribute
- extent.
- - Split ntfs_map_runlist() into ntfs_map_runlist() and a non-locking
- helper ntfs_map_runlist_nolock() which is used by ntfs_map_runlist().
- This allows us to map runlist fragments with the runlist lock already
- held without having to drop and reacquire it around the call. Adapt
- all callers.
- - Change ntfs_find_vcn() to ntfs_find_vcn_nolock() which takes a locked
- runlist. This allows us to find runlist elements with the runlist
- lock already held without having to drop and reacquire it around the
- call. Adapt all callers.
- - Change time to u64 in time.h::ntfs2utc() as it otherwise generates a
- warning in the do_div() call on sparc32. Thanks to Meelis Roos for
- the report and analysis of the warning.
- - Fix a nasty runlist merge bug when merging two holes.
- - Set the ntfs_inode->allocated_size to the real allocated size in the
- mft record for resident attributes (fs/ntfs/inode.c).
- - Small readability cleanup to use "a" instead of "ctx->attr"
- everywhere (fs/ntfs/inode.c).
- - Make fs/ntfs/namei.c::ntfs_get_{parent,dentry} static and move the
- definition of ntfs_export_ops from fs/ntfs/super.c to namei.c. Also,
- declare ntfs_export_ops in fs/ntfs/ntfs.h.
- - Correct sparse file handling. The compressed values need to be
- checked and set in the ntfs inode as done for compressed files and
- the compressed size needs to be used for vfs inode->i_blocks instead
- of the allocated size, again, as done for compressed files.
- - Add AT_EA in addition to AT_DATA to whitelist for being allowed to be
- non-resident in fs/ntfs/attrib.c::ntfs_attr_can_be_non_resident().
- - Add fs/ntfs/attrib.c::ntfs_attr_vcn_to_lcn_nolock() used by the new
- write code.
- - Fix bug in fs/ntfs/attrib.c::ntfs_find_vcn_nolock() where after
- dropping the read lock and taking the write lock we were not checking
- whether someone else did not already do the work we wanted to do.
- - Rename fs/ntfs/attrib.c::ntfs_find_vcn_nolock() to
- ntfs_attr_find_vcn_nolock() and update all callers.
- - Add fs/ntfs/attrib.[hc]::ntfs_attr_make_non_resident().
- - Fix sign of various error return values to be negative in
- fs/ntfs/lcnalloc.c.
- - Modify ->readpage and ->writepage (fs/ntfs/aops.c) so they detect and
- handle the case where an attribute is converted from resident to
- non-resident by a concurrent file write.
- - Remove checks for NULL before calling kfree() since kfree() does the
- checking itself. (Jesper Juhl)
- - Some utilities modify the boot sector but do not update the checksum.
- Thus, relax the checking in fs/ntfs/super.c::is_boot_sector_ntfs() to
- only emit a warning when the checksum is incorrect rather than
- refusing the mount. Thanks to Bernd Casimir for pointing this
- problem out.
- - Update attribute definition handling.
- - Add NTFS_MAX_CLUSTER_SIZE and NTFS_MAX_PAGES_PER_CLUSTER constants.
- - Use NTFS_MAX_CLUSTER_SIZE in super.c instead of hard coding 0x10000.
- - Use MAX_BUF_PER_PAGE instead of variable sized array allocation for
- better code generation and one less sparse warning in fs/ntfs/aops.c.
- - Remove spurious void pointer casts from fs/ntfs/. (Pekka Enberg)
- - Use C99 style structure initialization after memory allocation where
- possible (fs/ntfs/{attrib.c,index.c,super.c}). Thanks to Al Viro and
- Pekka Enberg.
- - Stamp the transaction log ($UsnJrnl), aka user space journal, if it
- is active on the volume and we are mounting read-write or remounting
- from read-only to read-write.
- - Fix a bug in address space operations error recovery code paths where
- if the runlist was not mapped at all and a mapping error occured we
- would leave the runlist locked on exit to the function so that the
- next access to the same file would try to take the lock and deadlock.
- - Detect the case when Windows has been suspended to disk on the volume
- to be mounted and if this is the case do not allow (re)mounting
- read-write. This is done by parsing hiberfil.sys if present.
- - Fix several occurences of a bug where we would perform 'var & ~const'
- with a 64-bit variable and a int, i.e. 32-bit, constant. This causes
- the higher order 32-bits of the 64-bit variable to be zeroed. To fix
- this cast the 'const' to the same 64-bit type as 'var'.
- - Change the runlist terminator of the newly allocated cluster(s) to
- LCN_ENOENT in ntfs_attr_make_non_resident(). Otherwise the runlist
- code gets confused.
- - Add an extra parameter @last_vcn to ntfs_get_size_for_mapping_pairs()
- and ntfs_mapping_pairs_build() to allow the runlist encoding to be
- partial which is desirable when filling holes in sparse attributes.
- Update all callers.
- - Change ntfs_map_runlist_nolock() to only decompress the mapping pairs
- if the requested vcn is inside it. Otherwise we get into problems
- when we try to map an out of bounds vcn because we then try to map
- the already mapped runlist fragment which causes
- ntfs_mapping_pairs_decompress() to fail and return error. Update
- ntfs_attr_find_vcn_nolock() accordingly.
- - Fix a nasty deadlock that appeared in recent kernels.
- The situation: VFS inode X on a mounted ntfs volume is dirty. For
- same inode X, the ntfs_inode is dirty and thus corresponding on-disk
- inode, i.e. mft record, which is in a dirty PAGE_CACHE_PAGE belonging
- to the table of inodes, i.e. $MFT, inode 0.
- What happens:
- Process 1: sys_sync()/umount()/whatever... calls
- __sync_single_inode() for $MFT -> do_writepages() -> write_page for
- the dirty page containing the on-disk inode X, the page is now locked
- -> ntfs_write_mst_block() which clears PageUptodate() on the page to
- prevent anyone else getting hold of it whilst it does the write out.
- This is necessary as the on-disk inode needs "fixups" applied before
- the write to disk which are removed again after the write and
- PageUptodate is then set again. It then analyses the page looking
- for dirty on-disk inodes and when it finds one it calls
- ntfs_may_write_mft_record() to see if it is safe to write this
- on-disk inode. This then calls ilookup5() to check if the
- corresponding VFS inode is in icache(). This in turn calls ifind()
- which waits on the inode lock via wait_on_inode whilst holding the
- global inode_lock.
- Process 2: pdflush results in a call to __sync_single_inode for the
- same VFS inode X on the ntfs volume. This locks the inode (I_LOCK)
- then calls write-inode -> ntfs_write_inode -> map_mft_record() ->
- read_cache_page() for the page (in page cache of table of inodes
- $MFT, inode 0) containing the on-disk inode. This page has
- PageUptodate() clear because of Process 1 (see above) so
- read_cache_page() blocks when it tries to take the page lock for the
- page so it can call ntfs_read_page().
- Thus Process 1 is holding the page lock on the page containing the
- on-disk inode X and it is waiting on the inode X to be unlocked in
- ifind() so it can write the page out and then unlock the page.
- And Process 2 is holding the inode lock on inode X and is waiting for
- the page to be unlocked so it can call ntfs_readpage() or discover
- that Process 1 set PageUptodate() again and use the page.
- Thus we have a deadlock due to ifind() waiting on the inode lock.
- The solution: The fix is to use the newly introduced
- ilookup5_nowait() which does not wait on the inode's lock and hence
- avoids the deadlock. This is safe as we do not care about the VFS
- inode and only use the fact that it is in the VFS inode cache and the
- fact that the vfs and ntfs inodes are one struct in memory to find
- the ntfs inode in memory if present. Also, the ntfs inode has its
- own locking so it does not matter if the vfs inode is locked.
- - Fix bug in mft record writing where we forgot to set the device in
- the buffers when mapping them after the VM had discarded them.
- Thanks to Martin MOKREJÅ for the bug report.
-
-2.1.22 - Many bug and race fixes and error handling improvements.
-
- - Improve error handling in fs/ntfs/inode.c::ntfs_truncate().
- - Change fs/ntfs/inode.c::ntfs_truncate() to return an error code
- instead of void and provide