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2009-01-06Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm: dlm: fs/dlm/ast.c: fix warning dlm: add new debugfs entry dlm: add time stamp of blocking callback dlm: change lock time stamping dlm: improve how bast mode handling dlm: remove extra blocking callback check dlm: replace schedule with cond_resched dlm: remove kmap/kunmap dlm: trivial annotation of be16 value dlm: fix up memory allocation flags
2009-01-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmwLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (27 commits) GFS2: Use DEFINE_SPINLOCK GFS2: Fix use-after-free bug on umount (try #2) Revert "GFS2: Fix use-after-free bug on umount" GFS2: Streamline alloc calculations for writes GFS2: Send useful information with uevent messages GFS2: Fix use-after-free bug on umount GFS2: Remove ancient, unused code GFS2: Move four functions from super.c GFS2: Fix bug in gfs2_lock_fs_check_clean() GFS2: Send some sensible sysfs stuff GFS2: Kill two daemons with one patch GFS2: Move gfs2_recoverd into recovery.c GFS2: Fix "truncate in progress" hang GFS2: Clean up & move gfs2_quotad GFS2: Add more detail to debugfs glock dumps GFS2: Banish struct gfs2_rgrpd_host GFS2: Move rg_free from gfs2_rgrpd_host to gfs2_rgrpd GFS2: Move rg_igeneration into struct gfs2_rgrpd GFS2: Banish struct gfs2_dinode_host GFS2: Move i_size from gfs2_dinode_host and rename it to i_disksize ...
2009-01-06Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: (138 commits) ocfs2: Access the right buffer_head in ocfs2_merge_rec_left. ocfs2: use min_t in ocfs2_quota_read() ocfs2: remove unneeded lvb casts ocfs2: Add xattr support checking in init_security ocfs2: alloc xattr bucket in ocfs2_xattr_set_handle ocfs2: calculate and reserve credits for xattr value in mknod ocfs2/xattr: fix credits calculation during index create ocfs2/xattr: Always updating ctime during xattr set. ocfs2/xattr: Remove extend_trans call and add its credits from the beginning ocfs2/dlm: Fix race during lockres mastery ocfs2/dlm: Fix race in adding/removing lockres' to/from the tracking list ocfs2/dlm: Hold off sending lockres drop ref message while lockres is migrating ocfs2/dlm: Clean up errors in dlm_proxy_ast_handler() ocfs2/dlm: Fix a race between migrate request and exit domain ocfs2: One more hamming code optimization. ocfs2: Another hamming code optimization. ocfs2: Don't hand-code xor in ocfs2_hamming_encode(). ocfs2: Enable metadata checksums. ocfs2: Validate superblock with checksum and ecc. ocfs2: Checksum and ECC for directory blocks. ...
2009-01-06Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: inotify: fix type errors in interfaces fix breakage in reiserfs_new_inode() fix the treatment of jfs special inodes vfs: remove duplicate code in get_fs_type() add a vfs_fsync helper sys_execve and sys_uselib do not call into fsnotify zero i_uid/i_gid on inode allocation inode->i_op is never NULL ntfs: don't NULL i_op isofs check for NULL ->i_op in root directory is dead code affs: do not zero ->i_op kill suid bit only for regular files vfs: lseek(fd, 0, SEEK_CUR) race condition
2009-01-05inotify: fix type errors in interfacesMichael Kerrisk
The problems lie in the types used for some inotify interfaces, both at the kernel level and at the glibc level. This mail addresses the kernel problem. I will follow up with some suggestions for glibc changes. For the sys_inotify_rm_watch() interface, the type of the 'wd' argument is currently 'u32', it should be '__s32' . That is Robert's suggestion, and is consistent with the other declarations of watch descriptors in the kernel source, in particular, the inotify_event structure in include/linux/inotify.h: struct inotify_event { __s32 wd; /* watch descriptor */ __u32 mask; /* watch mask */ __u32 cookie; /* cookie to synchronize two events */ __u32 len; /* length (including nulls) of name */ char name[0]; /* stub for possible name */ }; The patch makes the changes needed for inotify_rm_watch(). Signed-off-by: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: Robert Love <rlove@google.com> Cc: Vegard Nossum <vegard.nossum@gmail.com> Cc: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05fix breakage in reiserfs_new_inode()Al Viro
now that we use ih.key earlier, we need to do all its setup early enough Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05fix the treatment of jfs special inodesAl Viro
We used to put them on a single list, without any locking. Racy. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05vfs: remove duplicate code in get_fs_type()Li Zefan
save 14 bytes: text data bss dec hex filename 1354 32 4 1390 56e fs/filesystems.o.before text data bss dec hex filename 1340 32 4 1376 560 fs/filesystems.o Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05add a vfs_fsync helperChristoph Hellwig
Fsync currently has a fdatawrite/fdatawait pair around the method call, and a mutex_lock/unlock of the inode mutex. All callers of fsync have to duplicate this, but we have a few and most of them don't quite get it right. This patch adds a new vfs_fsync that takes care of this. It's a little more complicated as usual as ->fsync might get a NULL file pointer and just a dentry from nfsd, but otherwise gets afile and we want to take the mapping and file operations from it when it is there. Notes on the fsync callers: - ecryptfs wasn't calling filemap_fdatawrite / filemap_fdatawait on the lower file - coda wasn't calling filemap_fdatawrite / filemap_fdatawait on the host file, and returning 0 when ->fsync was missing - shm wasn't calling either filemap_fdatawrite / filemap_fdatawait nor taking i_mutex. Now given that shared memory doesn't have disk backing not doing anything in fsync seems fine and I left it out of the vfs_fsync conversion for now, but in that case we might just not pass it through to the lower file at all but just call the no-op simple_sync_file directly. [and now actually export vfs_fsync] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05sys_execve and sys_uselib do not call into fsnotifyEric Paris
sys_execve and sys_uselib do not call into fsnotify so inotify does not get open events for these types of syscalls. This patch simply makes the requisite fsnotify calls. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05zero i_uid/i_gid on inode allocationAl Viro
... and don't bother in callers. Don't bother with zeroing i_blocks, while we are at it - it's already been zeroed. i_mode is not worth the effort; it has no common default value. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05inode->i_op is never NULLAl Viro
We used to have rather schizophrenic set of checks for NULL ->i_op even though it had been eliminated years ago. You'd need to go out of your way to set it to NULL explicitly _and_ a bunch of code would die on such inodes anyway. After killing two remaining places that still did that bogosity, all that crap can go away. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05ntfs: don't NULL i_opAl Viro
it's already set to empty table (and no, ntfs doesn't have any explicit checks for NULL ->i_op or NULL ->i_fop) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05isofs check for NULL ->i_op in root directory is dead codeAl Viro
for one thing it never happens, for another we check that inode is a directory right after that place anyway (and we'd already checked that reading it from disk has not failed). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05affs: do not zero ->i_opAl Viro
it is already set to empty table and should never be NULL Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05vfs: lseek(fd, 0, SEEK_CUR) race conditionAlain Knaff
This patch fixes a race condition in lseek. While it is expected that unpredictable behaviour may result while repositioning the offset of a file descriptor concurrently with reading/writing to the same file descriptor, this should not happen when merely *reading* the file descriptor's offset. Unfortunately, the only portable way in Unix to read a file descriptor's offset is lseek(fd, 0, SEEK_CUR); however executing this concurrently with read/write may mess up the position. [with fixes from akpm] Signed-off-by: Alain Knaff <alain@knaff.lu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-01-05ocfs2: Access the right buffer_head in ocfs2_merge_rec_left.Tao Ma
In commit "ocfs2: Use metadata-specific ocfs2_journal_access_*() functions", the wrong buffer_head is accessed. So change it to the right buffer_head. Signed-off-by: Tao Ma <tao.ma@oracle.com> Acked-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: use min_t in ocfs2_quota_read()Mark Fasheh
This is preferred to min(). Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: remove unneeded lvb castsMark Fasheh
dlmglue.c has lots of code which casts the return value of ocfs2_dlm_lvb(). This is pointless however, as ocfs2_dlm_lvb() returns void *. Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Add xattr support checking in init_securityTiger Yang
We must check whether ocfs2 volume support xattr in init_security, if not support xattr and security is enable, would cause failure of mknod. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: alloc xattr bucket in ocfs2_xattr_set_handleTiger Yang
In extreme situation, may need xattr bucket for setting security entry and acl entries during mknod. This only happens when block size is too small. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: calculate and reserve credits for xattr value in mknodTiger Yang
We extend the credits for xattr's large value in set_value_outside before, this can give rise to a credits issue when we set one security entry and two acl entries duing mknod. As we remove extend_trans form set_value_outside, we must calculate and reserve the credits for xattr's large value in mknod. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2/xattr: fix credits calculation during index createTao Ma
When creating a xattr index block, the old calculation forget to add credits for the meta change of the alloc file. So add more credits and more comments to explain it. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2/xattr: Always updating ctime during xattr set.Tao Ma
In xattr set, we should always update ctime if the operation goes sucessfully. The old one mistakenly put it in ocfs2_xattr_set_entry which is only called when we set xattr in inode or xattr block. The side benefit is that it resolve the bug 1052 since in that scenario, ocfs2_calc_xattr_set_need only calc out the xattr set credits while ocfs2_xattr_set_entry update the inode also which isn't concerned with the process of xattr set. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2/xattr: Remove extend_trans call and add its credits from the beginningTao Ma
Actually, when setting a new xattr value, we know it from the very beginning, and it isn't like the extension of bucket in which case we can't figure it out. So remove ocfs2_extend_trans in that function and calculate it before the transaction. It also relieve acl operation from the worry about the side effect of ocfs2_extend_trans. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2/dlm: Fix race during lockres masterySunil Mushran
dlm_get_lock_resource() is supposed to return a lock resource with a proper master. If multiple concurrent threads attempt to lookup the lockres for the same lockid while the lock mastery in underway, one or more threads are likely to return a lockres without a proper master. This patch makes the threads wait in dlm_get_lock_resource() while the mastery is underway, ensuring all threads return the lockres with a proper master. This issue is known to be limited to users using the flock() syscall. For all other fs operations, the ocfs2 dlmglue layer serializes the dlm op for each lockid. Users encountering this bug will see flock() return EINVAL and dmesg have the following error: ERROR: Dlm error "DLM_BADARGS" while calling dlmlock on resource <LOCKID>: bad api args Reported-by: Coly Li <coyli@suse.de> Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2/dlm: Fix race in adding/removing lockres' to/from the tracking listSunil Mushran
This patch adds a new lock, dlm->tracking_lock, to protect adding/removing lockres' to/from the dlm->tracking_list. We were previously using dlm->spinlock for the same, but that proved inadequate as we could be freeing a lockres from a context that did not hold that lock. As the new lock only protects this list, we can explicitly take it when removing the lockres from the tracking list. This bug was exposed when testing multiple processes concurrently flock() the same file. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2/dlm: Hold off sending lockres drop ref message while lockres is migratingSunil Mushran
During lockres purge, o2dlm sends a drop reference message to the lockres master. This patch delays the message if the lockres is being migrated. Fixes oss bugzilla#1012 http://oss.oracle.com/bugzilla/show_bug.cgi?id=1012 Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2/dlm: Clean up errors in dlm_proxy_ast_handler()Sunil Mushran
Patch cleans printed errors in dlm_proxy_ast_handler(). The errors now includes the node number that sent the (b)ast. Also it reduces the number of endian swaps of the cookie. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2/dlm: Fix a race between migrate request and exit domainSunil Mushran
Patch address a racing migrate request message and an exit domain message. Instead of blocking exit domains for the duration of the migrate, we ignore failure to deliver that message. This is because an exiting domain should not have any active locks and thus has no role to play in the migration. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: One more hamming code optimization.Joel Becker
The previous optimization used a fast find-highest-bit-set operation to give us a good starting point in calc_code_bit(). This version lets the caller cache the previous code buffer bit offset. Thus, the next call always starts where the last one left off. This reduces the calculation another 39%, for a total 80% reduction from the original, naive implementation. At least, on my machine. This also brings the parity calculation to within an order of magnitude of the crc32 calculation. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Another hamming code optimization.Joel Becker
In the calc_code_bit() function, we must find all powers of two beneath the code bit number, *after* it's shifted by those powers of two. This requires a loop to see where it ends up. We can optimize it by starting at its most significant bit. This shaves 32% off the time, for a total of 67.6% shaved off of the original, naive implementation. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Don't hand-code xor in ocfs2_hamming_encode().Joel Becker
When I wrote ocfs2_hamming_encode(), I was following documentation of the algorithm and didn't have quite the (possibly still imperfect) grasp of it I do now. As part of this, I literally hand-coded xor. I would test a bit, and then add that bit via xor to the parity word. I can, of course, just do a single xor of the parity word and the source word (the code buffer bit offset). This cuts CPU usage by 53% on a mostly populated buffer (an inode containing utmp.h inline). Joel Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Enable metadata checksums.Joel Becker
Add OCFS2_FEATURE_INCOMPAT_META_ECC to the list of supported features. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Validate superblock with checksum and ecc.Joel Becker
The superblock is read via a raw call. Validate it after we find it from its signature. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Checksum and ECC for directory blocks.Joel Becker
Use the db_check field of ocfs2_dir_block_trailer to crc/ecc the dirblocks. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Add directory block trailers.Mark Fasheh
Future ocfs2 features metaecc and indexed directories need to store a little bit of data in each dirblock. For compatibility, we place this in a trailer at the end of the dirblock. The trailer plays itself as an empty dirent, so that if the features are turned off, it can be reused without requiring a tunefs scan. This code adds the trailer and validates it when the block is read in. [ Mark is the original author, but I reinserted this code before his dir index work. -- Joel ] Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Use proper journal_access function in xattr.cJoel Becker
Change the rest of the naked ocfs2_journal_access() calls in fs/ocfs2/xattr.c to use the appropriate ocfs2_journal_access_*() call for their metadata type. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Pass value buf to ocfs2_remove_value_outside().Joel Becker
ocfs2_remove_value_outside() needs to know the type of buffer it is looking at. Pass in an ocfs2_xattr_value_buf. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Use ocfs2_xattr_value_buf in ocfs2_xattr_set_entry().Joel Becker
ocfs2_xattr_set_entry is the function that knows what type of block it is setting into. This is what we wanted from ocfs2_xattr_value_buf. Plus, moving the value buf up into ocfs2_xattr_set_entry() allows us to pass it into ocfs2_xattr_set_value_outside() and ocfs2_xattr_cleanup(). Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Pass value buf to ocfs2_xattr_update_entry().Joel Becker
ocfs2_xattr_update_entry() updates the entry portion of an xattr buffer. This can be part of multiple metadata block types, so pass the buffer in via an ocfs2_xattr_value_buf. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Pass ocfs2_xattr_value_buf into ocfs2_xattr_value_truncate().Joel Becker
The callers of ocfs2_xattr_value_truncate() now pass in ocfs2_xattr_value_bufs. These callers are the ones that calculated the xv location, so they are the right starting point. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Pull ocfs2_xattr_value_buf up into ocfs2_xattr_value_truncate().Joel Becker
Place an ocfs2_xattr_value_buf in ocfs2_xattr_value_truncate() and pass it down to ocfs2_xattr_shrink_size(). We can also pass it into ocfs2_xattr_extend_allocation(), replacing its ocfs2_xattr_value_buf. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Pull ocfs2_xattr_value_buf up from __ocfs2_remove_xattr_range().Joel Becker
Place an ocfs2_xattr_value_buf in __ocfs2_xattr_shrink_size() and pass it down to __ocfs2_remove_xattr_range(). Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Create ocfs2_xattr_value_buf.Joel Becker
When an ocfs2 extended attribute is large enough to require its own allocation tree, we root it with an ocfs2_xattr_value_root. However, these roots can be a part of inodes, xattr blocks, or xattr buckets. Thus, they need a different journal access function for each container. We wrap the bh, its journal access function, and the value root (xv) in a structure called ocfs2_xattr_valu_buf. This is a package that can be passed around. In this first pass, we simply pass it to the extent tree code. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Add ecc and checksums to ocfs2 xattr buckets.Joel Becker
The xattr bucket can span multiple blocks on disk. We have wrappers for this structure in the code. We use the new multi-block ecc calls to calculate and validate the bucket. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Use metadata-specific ocfs2_journal_access_*() functions.Joel Becker
The per-metadata-type ocfs2_journal_access_*() functions hook up jbd2 commit triggers and allow us to compute metadata ecc right before the buffers are written out. This commit provides ecc for inodes, extent blocks, group descriptors, and quota blocks. It is not safe to use extened attributes and metaecc at the same time yet. The ocfs2_extent_tree and ocfs2_path abstractions in alloc.c both hide the type of block at their root. Before, it didn't matter, but now the root block must use the appropriate ocfs2_journal_access_*() function. To keep this abstract, the structures now have a pointer to the matching journal_access function and a wrapper call to call it. A few places use naked ocfs2_write_block() calls instead of adding the blocks to the journal. We make sure to calculate their checksum and ecc before the write. Since we pass around the journal_access functions. Let's typedef them in ocfs2.h. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Wrap up the common use cases of ocfs2_new_path().Joel Becker
The majority of ocfs2_new_path() calls are: ocfs2_new_path(path_root_bh(otherpath), path_root_el(otherpath)); Let's call that ocfs2_new_path_from_path(). The rest do similar things from struct ocfs2_extent_tree. Let's call those ocfs2_new_path_from_et(). This will make the next change easier. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: Add journal_access functions with jbd2 triggers.Joel Becker
We create wrappers for ocfs2_journal_access() that are specific to the type of metadata block. This allows us to associate jbd2 commit triggers with the block. The triggers will compute metadata ecc in a future commit. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05ocfs2: block read meta ecc.Joel Becker
Add block check calls to the read_block validate functions. This is the almost all of the read-side checking of metaecc. xattr buckets are not checked yet. Writes are also unchecked, and so a read-write mount will quickly fail. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>