Linus Torvalds
d4da6c9ccf
Revert "ext4: Remove journal_checksum mount option and enable it by default"
This reverts commit d0646f7b63, as
requested by Eric Sandeen.
It can basically cause an ext4 filesystem to miss recovery (and thus get
mounted with errors) if the journal checksum does not match.
Quoth Eric:
"My hand-wavy hunch about what is happening is that we're finding a
bad checksum on the last partially-written transaction, which is
not surprising, but if we have a wrapped log and we're doing the
initial scan for head/tail, and we abort scanning on that bad
checksum, then we are essentially running an unrecovered filesystem.
But that's hand-wavy and I need to go look at the code.
We lived without journal checksums on by default until now, and at
this point they're doing more harm than good, so we should revert
the default-changing commit until we can fix it and do some good
power-fail testing with the fixes in place."
See
http://bugzilla.kernel.org/show_bug.cgi?id=14354
for all the gory details.
Requested-by: Eric Sandeen <sandeen@redhat.com>
Cc: Theodore Tso <tytso@mit.edu>
Cc: Alexey Fisher <bug-track@fisher-privat.net>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Mathias Burén <mathias.buren@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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2009-11-02 10:15:27 -08:00 |
| .. |
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acl.c
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ext[234]: move over to 'check_acl' permission model
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2009-09-08 11:09:04 -07:00 |
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acl.h
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ext[234]: move over to 'check_acl' permission model
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2009-09-08 11:09:04 -07:00 |
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balloc.c
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ext4: open-code ext4_mb_update_group_info
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2009-08-17 23:51:29 -04:00 |
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bitmap.c
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ext4: Change unsigned long to unsigned int
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2008-11-05 00:14:04 -05:00 |
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block_validity.c
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ext4: Add a comprehensive block validity check to ext4_get_blocks()
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2009-05-17 15:38:01 -04:00 |
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dir.c
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ext4: Define a new set of flags for ext4_get_blocks()
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2009-05-14 00:58:52 -04:00 |
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ext4.h
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Revert "ext4: Remove journal_checksum mount option and enable it by default"
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2009-11-02 10:15:27 -08:00 |
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ext4_extents.h
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ext4: Split uninitialized extents for direct I/O
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2009-09-28 15:49:08 -04:00 |
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ext4_jbd2.c
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ext4: Assure that metadata blocks are written during fsync in no journal mode
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2009-09-12 13:41:55 -04:00 |
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ext4_jbd2.h
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ext4: Handle nested ext4_journal_start/stop calls without a journal
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2009-09-29 11:01:03 -04:00 |
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extents.c
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ext4, jbd2: Drop unneeded printks at mount and unmount time
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2009-09-29 15:51:30 -04:00 |
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file.c
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const: mark struct vm_struct_operations
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2009-09-27 11:39:25 -07:00 |
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fsync.c
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ext4: async direct IO for holes and fallocate support
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2009-09-28 15:48:29 -04:00 |
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hash.c
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ext4: Add support for non-native signed/unsigned htree hash algorithms
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2008-10-28 13:21:44 -04:00 |
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ialloc.c
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ext4: fix build warning when EXT4FS_DEBUG is on
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2009-07-27 21:44:40 -04:00 |
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inode.c
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[PATCH] ext4: retry failed direct IO allocations
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2009-10-02 21:20:55 -04:00 |
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ioctl.c
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ext4: Return exchanged blocks count to user space in failure
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2009-09-05 22:46:29 -04:00 |
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Kconfig
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ext4: drop ext4dev compat
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2009-10-01 02:21:07 -04:00 |
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Makefile
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ext4: online defrag -- Add EXT4_IOC_MOVE_EXT ioctl
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2009-06-17 19:24:03 -04:00 |
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mballoc.c
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ext4: Use tracepoints for mb_history trace file
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2009-09-30 00:32:42 -04:00 |
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mballoc.h
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ext4: Use tracepoints for mb_history trace file
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2009-09-30 00:32:42 -04:00 |
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migrate.c
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ext4: Split uninitialized extents for direct I/O
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2009-09-28 15:49:08 -04:00 |
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move_extent.c
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ext4: EXT4_IOC_MOVE_EXT: Check for different original and donor inodes first
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2009-09-28 15:58:29 -04:00 |
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namei.c
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ext4: Handle nested ext4_journal_start/stop calls without a journal
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2009-09-29 11:01:03 -04:00 |
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resize.c
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ext4: Clarify the locking details in mballoc
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2009-09-09 23:50:17 -04:00 |
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super.c
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Revert "ext4: Remove journal_checksum mount option and enable it by default"
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2009-11-02 10:15:27 -08:00 |
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symlink.c
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ext4: Rename ext4dev to ext4
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2008-10-10 20:02:48 -04:00 |
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xattr.c
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ext4: limit block allocations for indirect-block files to < 2^32
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2009-09-16 14:45:10 -04:00 |
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xattr.h
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ext4: Rename ext4dev to ext4
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2008-10-10 20:02:48 -04:00 |
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xattr_security.c
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ext4: move headers out of include/linux
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2008-04-29 18:13:32 -04:00 |
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xattr_trusted.c
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ext4: remove double definitions of xattr macros
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2008-07-11 19:27:31 -04:00 |
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xattr_user.c
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ext4: remove double definitions of xattr macros
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2008-07-11 19:27:31 -04:00 |