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* Merge tag 'ext4_for_linus' of ↵Linus Torvalds2012-06-0128-197/+1784
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull Ext4 updates from Theodore Ts'o: "The major new feature added in this update is Darrick J Wong's metadata checksum feature, which adds crc32 checksums to ext4's metadata fields. There is also the usual set of cleanups and bug fixes." * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (44 commits) ext4: hole-punch use truncate_pagecache_range jbd2: use kmem_cache_zalloc wrapper instead of flag ext4: remove mb_groups before tearing down the buddy_cache ext4: add ext4_mb_unload_buddy in the error path ext4: don't trash state flags in EXT4_IOC_SETFLAGS ext4: let getattr report the right blocks in delalloc+bigalloc ext4: add missing save_error_info() to ext4_error() ext4: add debugging trigger for ext4_error() ext4: protect group inode free counting with group lock ext4: use consistent ssize_t type in ext4_file_write() ext4: fix format flag in ext4_ext_binsearch_idx() ext4: cleanup in ext4_discard_allocated_blocks() ext4: return ENOMEM when mounts fail due to lack of memory ext4: remove redundundant "(char *) bh->b_data" casts ext4: disallow hard-linked directory in ext4_lookup ext4: fix potential integer overflow in alloc_flex_gd() ext4: remove needs_recovery in ext4_mb_init() ext4: force ro mount if ext4_setup_super() fails ext4: fix potential NULL dereference in ext4_free_inodes_counts() ext4/jbd2: add metadata checksumming to the list of supported features ...
| * ext4: hole-punch use truncate_pagecache_rangeHugh Dickins2012-06-011-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | When truncating a file, we unmap pages from userspace first, as that's usually more efficient than relying, page by page, on the fallback in truncate_inode_page() - particularly if the file is mapped many times. Do the same when punching a hole: 3.4 added truncate_pagecache_range() to do the unmap and trunc, so use it in ext4_ext_punch_hole(), instead of calling truncate_inode_pages_range() directly. Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * jbd2: use kmem_cache_zalloc wrapper instead of flagWanlong Gao2012-06-011-2/+2
| | | | | | | | | | | | | | Use kmem_cache_zalloc wrapper instead of flag __GFP_ZERO. Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: remove mb_groups before tearing down the buddy_cacheSalman Qazi2012-06-011-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can't have references held on pages in the s_buddy_cache while we are trying to truncate its pages and put the inode. All the pages must be gone before we reach clear_inode. This can only be gauranteed if we can prevent new users from grabbing references to s_buddy_cache's pages. The original bug can be reproduced and the bug fix can be verified by: while true; do mount -t ext4 /dev/ram0 /export/hda3/ram0; \ umount /export/hda3/ram0; done & while true; do cat /proc/fs/ext4/ram0/mb_groups; done Signed-off-by: Salman Qazi <sqazi@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
| * ext4: add ext4_mb_unload_buddy in the error pathSalman Qazi2012-06-011-0/+1
| | | | | | | | | | | | | | | | | | ext4_free_blocks fails to pair an ext4_mb_load_buddy with a matching ext4_mb_unload_buddy when it fails a memory allocation. Signed-off-by: Salman Qazi <sqazi@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
| * ext4: don't trash state flags in EXT4_IOC_SETFLAGSTheodore Ts'o2012-06-011-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 353eb83c we removed i_state_flags with 64-bit longs, But when handling the EXT4_IOC_SETFLAGS ioctl, we replace i_flags directly, which trashes the state flags which are stored in the high 32-bits of i_flags on 64-bit platforms. So use the the ext4_{set,clear}_inode_flags() functions which use atomic bit manipulation functions instead. Reported-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
| * ext4: let getattr report the right blocks in delalloc+bigallocTao Ma2012-06-011-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | In delayed allocation, i_reserved_data_blocks now indicates clusters, not blocks. So report it in the right number. This can be easily exposed by the following command: echo foo > blah; du -hc blah; sync; du -hc blah Reported-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: add missing save_error_info() to ext4_error()Theodore Ts'o2012-05-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | The ext4_error() function is missing a call to save_error_info(). Since this is the function which marks the file system as containing an error, this oversight (which was introduced in 2.6.36) is quite significant, and should be backported to older stable kernels with high urgency. Reported-by: Ken Sumrall <ksumrall@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: ksumrall@google.com Cc: stable@kernel.org
| * ext4: add debugging trigger for ext4_error()Theodore Ts'o2012-05-312-0/+21
| | | | | | | | | | | | | | | | | | | | Make it easy to test whether or not the error handling subsystem in ext4 is working correctly. This allows us to simulate an ext4_error() by echoing a string to /sys/fs/ext4/<dev>/trigger_fs_error. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: ksumrall@google.com
| * ext4: protect group inode free counting with group lockTao Ma2012-05-291-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now when we set the group inode free count, we don't have a proper group lock so that multiple threads may decrease the inode free count at the same time. And e2fsck will complain something like: Free inodes count wrong for group #1 (1, counted=0). Fix? no Free inodes count wrong for group #2 (3, counted=0). Fix? no Directories count wrong for group #2 (780, counted=779). Fix? no Free inodes count wrong for group #3 (2272, counted=2273). Fix? no So this patch try to protect it with the ext4_lock_group. btw, it is found by xfstests test case 269 and the volume is mkfsed with the parameter "-O ^resize_inode,^uninit_bg,extent,meta_bg,flex_bg,ext_attr" and I have run it 100 times and the error in e2fsck doesn't show up again. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: use consistent ssize_t type in ext4_file_write()Zheng Liu2012-05-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The generic_file_aio_write() function returns ssize_t, and ext4_file_write() returns a ssize_t, so use a ssize_t to collect the return value from generic_file_aio_write(). It shouldn't matter since the VFS read/write paths shouldn't allow a read greater than MAX_INT, but there was previously a bug in the AIO code paths, and it's best if we use a consistent type so that the return value from generic_file_aio_write() can't get truncated. Reported-by: Jouni Siren <jouni.siren@iki.fi> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: fix format flag in ext4_ext_binsearch_idx()Zheng Liu2012-05-281-1/+1
| | | | | | | | | | | | | | fix ext_debug format flag in ext4_ext_binsearch_idx(). Signed-off-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: cleanup in ext4_discard_allocated_blocks()Zheng Liu2012-05-281-6/+2
| | | | | | | | | | | | | | | | remove 'len' variable in ext4_discard_allocated_blocks() because it is useless. Signed-off-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: return ENOMEM when mounts fail due to lack of memoryTheodore Ts'o2012-05-281-0/+2
| | | | | | | | | | | | This is a port of the ext3 commit: 4569cd1b0d9 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: remove redundundant "(char *) bh->b_data" castsTheodore Ts'o2012-05-282-4/+4
| | | | | | | | | | | | | | The b_data field of the buffer_head is already a char *, so there's no point casting it to a char *. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: disallow hard-linked directory in ext4_lookupAndreas Dilger2012-05-281-0/+6
| | | | | | | | | | | | | | | | | | | | A hard-linked directory to its parent can cause the VFS to deadlock, and is a sign of a corrupted file system. So detect this case in ext4_lookup(), before the rmdir() lockup scenario can take place. Signed-off-by: Andreas Dilger <adilger@dilger.ca> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
| * ext4: fix potential integer overflow in alloc_flex_gd()Haogang Chen2012-05-281-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In alloc_flex_gd(), when flexbg_size is large, kmalloc size would overflow and flex_gd->groups would point to a buffer smaller than expected, causing OOB accesses when it is used. Note that in ext4_resize_fs(), flexbg_size is calculated using sbi->s_log_groups_per_flex, which is read from the disk and only bounded to [1, 31]. The patch returns NULL for too large flexbg_size. Reviewed-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Haogang Chen <haogangchen@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
| * ext4: remove needs_recovery in ext4_mb_init()Akira Fujita2012-05-283-3/+3
| | | | | | | | | | | | | | needs_recovery in ext4_mb_init() is not used, remove it. Signed-off-by: Akira Fujita <a-fujita@rs.jp.ne.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: force ro mount if ext4_setup_super() failsEric Sandeen2012-05-281-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If ext4_setup_super() fails i.e. due to a too-high revision, the error is logged in dmesg but the fs is not mounted RO as indicated. Tested by: # mkfs.ext4 -r 4 /dev/sdb6 # mount /dev/sdb6 /mnt/test # dmesg | grep "too high" [164919.759248] EXT4-fs (sdb6): revision level too high, forcing read-only mode # grep sdb6 /proc/mounts /dev/sdb6 /mnt/test2 ext4 rw,seclabel,relatime,data=ordered 0 0 Reviewed-by: Andreas Dilger <adilger@whamcloud.com> Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
| * ext4: fix potential NULL dereference in ext4_free_inodes_counts()Dan Carpenter2012-05-281-4/+6
| | | | | | | | | | | | | | | | | | | | | | The ext4_get_group_desc() function returns NULL on error, and ext4_free_inodes_count() function dereferences it without checking. There is a check on the next line, but it's too late. Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
| * ext4/jbd2: add metadata checksumming to the list of supported featuresDarrick J. Wong2012-05-272-2/+4
| | | | | | | | | | | | | | | | Activate the metadata checksumming feature by adding it to ext4 and jbd2's lists of supported features. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * jbd2: checksum data blocks that are stored in the journalDarrick J. Wong2012-05-273-2/+60
| | | | | | | | | | | | | | Calculate and verify checksums of each data block being stored in the journal. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * jbd2: checksum commit blocksDarrick J. Wong2012-05-272-0/+50
| | | | | | | | | | | | | | | | | | Calculate and verify the checksum of commit blocks. In checksum v2, deprecate most of the checksum v1 commit block checksum fields, since each block has its own checksum. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * jbd2: checksum descriptor blocksDarrick J. Wong2012-05-272-2/+60
| | | | | | | | | | | | | | Calculate and verify a checksum of each descriptor block. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * jbd2: checksum revocation blocksDarrick J. Wong2012-05-272-1/+48
| | | | | | | | | | | | | | Compute and verify revoke blocks inside the journal. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * jbd2: checksum journal superblockDarrick J. Wong2012-05-272-0/+50
| | | | | | | | | | | | | | Calculate and verify a checksum covering the journal superblock. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * jbd2: Grab a reference to the crc32c driver if necessaryDarrick J. Wong2012-05-273-0/+50
| | | | | | | | | | | | | | Obtain a reference to the crc32c driver if needed for the v2 checksum. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * jbd2: enable journal clients to enable v2 checksummingDarrick J. Wong2012-05-272-13/+92
| | | | | | | | | | | | | | | | Add in the necessary code so that journal clients can enable the new journal checksumming features. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * jbd2: change disk layout for metadata checksummingDarrick J. Wong2012-05-233-7/+33
| | | | | | | | | | | | | | | | Define flags and allocate space in on-disk journal structures to support checksumming of journal metadata. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: enable the 64-bit jbd2 feature based on the 64-bit ext4 featureTheodore Ts'o2012-05-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously we were only enabling the 64-bit jbd2 feature if the number of blocks in the file system was greater 2**32-1. The problem with this is that it makes it harder to test the 64-bit journal code paths with small file systems, since a small test file system would with the 64-bit ext4 feature enable would use a 64-bit file system on-disk data structures, but use a 32-bit journal. This would also cause problems when trying to do an online resize to grow the filesystem above the 2**32-1 boundary. Fortunately the patch to support online resize for 64-bit file systems hasn't been merged yet, so this problem hasn't arisen in practice. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: remove unnecessary check in add_dirent_to_buf()Theodore Ts'o2012-04-301-5/+2
| | | | | | | | | | | | | | | | None of this function callers ever pass in a NULL inode pointer, so this check is unnecessary, and the else clause is dead code. (This change should make the code coverage people a little happier. :-) Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: add checksums to the MMP blockDarrick J. Wong2012-04-302-5/+42
| | | | | | | | | | | | | | Compute and verify a checksum for the MMP block. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: make block group checksums use metadata_csum algorithmDarrick J. Wong2012-04-307-50/+76
| | | | | | | | | | | | | | | | | | | | | | metadata_csum supersedes uninit_bg. Convert the ROCOMPAT uninit_bg flag check to a helper function that covers both, and make the checksum calculation algorithm use either crc16 or the metadata_csum chosen algorithm depending on which flag is set. Print a warning if we try to mount a filesystem with both feature flags set. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: Calculate and verify checksums of extended attribute blocksDarrick J. Wong2012-04-301-15/+77
| | | | | | | | | | | | | | | | | | | | Calculate and verify the checksums of extended attribute blocks. This only applies to separate EA blocks that are pointed to by inode->i_file_acl (i.e. external EA blocks); the checksum lives in the EA header. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: calculate and verify checksums of directory leaf blocksDarrick J. Wong2012-04-303-15/+259
| | | | | | | | | | | | | | | | | | | | | | | | | | Calculate and verify the checksums for directory leaf blocks (i.e. blocks that only contain actual directory entries). The checksum lives in what looks to be an unused directory entry with a 0 name_len at the end of the block. This scheme is not used for internal htree nodes because the mechanism in place there only costs one dx_entry, whereas the "empty" directory entry would cost two dx_entries. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: Calculate and verify checksums for htree nodesDarrick J. Wong2012-04-301-4/+156
| | | | | | | | | | | | | | | | | | | | Calculate and verify the checksum for directory index tree (htree) node blocks. The checksum is stored in the last 4 bytes of the htree block and requires the dx_entry array to stop 1 dx_entry short of the end of the block. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: verify and calculate checksums for extent tree blocksDarrick J. Wong2012-04-302-0/+61
| | | | | | | | | | | | | | | | | | | | Calculate and verify the checksum for each extent tree block. The checksum is located in the space immediately after the last possible ext4_extent in the block. The space is is typically the last 4-8 bytes in the block. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: calculate and verify block bitmap checksumDarrick J. Wong2012-04-306-8/+104
| | | | | | | | | | | | | | | | Compute and verify the checksum of the block bitmap; this checksum is stored in the block group descriptor. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: calculate and verify checksums for inode bitmapsDarrick J. Wong2012-04-304-5/+135
| | | | | | | | | | | | | | | | Compute and verify the checksum of the inode bitmap; the checkum is stored in the block group descriptor. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: calculate and verify inode checksumsDarrick J. Wong2012-04-304-8/+126
| | | | | | | | | | | | | | | | | | | | | | This patch introduces to ext4 the ability to calculate and verify inode checksums. This requires the use of a new ro compatibility flag and some accompanying e2fsprogs patches to provide the relevant features in tune2fs and e2fsck. The inode generation changes have been integrated into this patch. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: calculate and verify superblock checksumDarrick J. Wong2012-04-307-7/+76
| | | | | | | | | | | | | | | | | | | | Calculate and verify the superblock checksum. Since the UUID and block group number are embedded in each copy of the superblock, we need only checksum the entire block. Refactor some of the code to eliminate open-coding of the checksum update call. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: load the crc32c driver if necessaryDarrick J. Wong2012-04-303-0/+41
| | | | | | | | | | | | | | | | Obtain a reference to the cryptoapi and crc32c if we mount a filesystem with metadata checksumming enabled. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: record the checksum algorithm in use in the superblockDarrick J. Wong2012-04-301-0/+18
| | | | | | | | | | | | | | | | Record the type of checksum algorithm we're using for metadata in the superblock, in case we ever want/need to change the algorithm. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: change on-disk layout to support extended metadata checksummingDarrick J. Wong2012-04-304-9/+63
| | | | | | | | | | | | | | | | Define flags and change structure definitions to allow checksumming of ext4 metadata. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: create a new BH_Verified flag to avoid unnecessary metadata validationDarrick J. Wong2012-04-302-9/+28
| | | | | | | | | | | | | | | | | | | | Create a new BH_Verified flag to indicate that we've verified all the data in a buffer_head for correctness. This allows us to bypass expensive verification steps when they are not necessary without missing them when they are. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* | Merge branch 'for-linus' of ↵Linus Torvalds2012-06-0133-866/+2849
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs updates from Chris Mason: "This includes a fairly large change from Josef around data writeback completion. Before, the writeback wasn't completed until the metadata insertions for the extent were done, and this made for fairly large latency spikes on the last page of each ordered extent. We already had a separate mechanism for tracking pending metadata insertions, so Josef just needed to tweak things a little to end writeback earlier on the page. Overall it makes us much friendly to memory reclaim and lowers latencies quite a lot for synchronous IO. Jan Schmidt has finished some background work required to track btree blocks as they go through changes in ownership. It's the missing piece he needed for both btrfs send/receive and subvolume quotas. Neither of those are ready yet, but the new tracking code is included here. Most of the time, the new code is off. It is only used by scrub and other backref walkers. Stefan Behrens has added io failure tracking. This includes counters for which drives are causing the most trouble so the admin (or an automated tool) can choose to kick them out. We're tracking IO errors, crc errors, and generation checks we do on each metadata block. RAID5/6 did miss the cut this time because I'm having trouble with corruptions. I'll nail it down next week and post as a beta testing before 3.6" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (58 commits) Btrfs: fix tree mod log rewinded level and rewinding of moved keys Btrfs: fix tree mod log del_ptr Btrfs: add tree_mod_dont_log helper Btrfs: add missing spin_lock for insertion into tree mod log Btrfs: add inodes before dropping the extent lock in find_all_leafs Btrfs: use delayed ref sequence numbers for all fs-tree updates Btrfs: fix false positive in check-integrity on unmount Btrfs: fix runtime warning in check-integrity check data mode Btrfs: set ioprio of scrub readahead to idle Btrfs: fix return code in drop_objectid_items Btrfs: check to see if the inode is in the log before fsyncing Btrfs: return value of btrfs_read_buffer is checked correctly Btrfs: read device stats on mount, write modified ones during commit Btrfs: add ioctl to get and reset the device stats Btrfs: add device counters for detected IO and checksum errors btrfs: Drop unused function btrfs_abort_devices() Btrfs: fix the same inode id problem when doing auto defragment Btrfs: fall back to non-inline if we don't have enough space Btrfs: fix how we deal with the orphan block rsv Btrfs: convert the inode bit field to use the actual bit operations ...
| * \ Merge branch 'for-chris' of git://git.jan-o-sch.net/btrfs-unstable into ↵Chris Mason2012-05-3114-252/+1368
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | for-linus Conflicts: fs/btrfs/ulist.h Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * | Btrfs: fix tree mod log rewinded level and rewinding of moved keysJan Schmidt2012-05-311-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we rewind REMOVE_WHILE_FREEING operations, there's code that allocates a fresh buffer instead of cloning the old one. Setting that buffer's level correctly was missing in this case. When rewinding a MOVE_KEYS operation, btrfs_node_key_ptr_offset(slot) was missing for memmove_extent_buffer()'s arguments. Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
| | * | Btrfs: fix tree mod log del_ptrJan Schmidt2012-05-311-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Logging for del_ptr when we're not deleting the last pointer was wrong. This fixes both, duplicate log entries and log sequence. Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
| | * | Btrfs: add tree_mod_dont_log helperJan Schmidt2012-05-311-9/+15
| | | | | | | | | | | | | | | | | | | | | | | | Replace duplicate code by small inline helper function. Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
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