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08da1193d2
linux/fs/ext4
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Markus Trippelsdorf 08da1193d2 ext4: fix setting random pages PageUptodate 
ext4_end_bio calls put_page and kmem_cache_free before calling
SetPageUpdate(). This can result in setting the PageUptodate bit on
random pages and causes the following BUG:

 BUG: Bad page state in process rm  pfn:52e54
 page:ffffea0001222260 count:0 mapcount:0 mapping:          (null) index:0x0
 arch kernel: page flags: 0x4000000000000008(uptodate)

Fix the problem by moving put_io_page() after the SetPageUpdate() call.

Thanks to Hugh Dickins for analyzing this problem.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-11-17 21:46:06 -05:00
..
acl.c ext4: update ctime when changing the file's permission by setfacl 2010-06-15 12:19:59 -04:00
acl.h
balloc.c ext4: rename mark_bitmap_end() to ext4_mark_bitmap_end() 2010-10-27 21:30:15 -04:00
bitmap.c
block_validity.c ext4: rename {exit,init}_ext4_*() to ext4_{exit,init}_*() 2010-10-27 21:30:14 -04:00
dir.c ext4: improve llseek error handling for overly large seek offsets 2010-10-27 21:30:06 -04:00
ext4_extents.h ext4: rename {ext,idx}_pblock and inline small extent functions 2010-10-27 21:30:14 -04:00
ext4_jbd2.c ext4: Pass line numbers to ext4_error() and friends 2010-07-27 11:56:40 -04:00
ext4_jbd2.h ext4: Pass line numbers to ext4_error() and friends 2010-07-27 11:56:40 -04:00
ext4.h ext4: fix potential race when freeing ext4_io_page structures 2010-11-08 13:45:33 -05:00
extents.c Merge branch 'next' into upstream-merge 2010-10-27 23:44:47 -04:00
file.c ext4: improve llseek error handling for overly large seek offsets 2010-10-27 21:30:06 -04:00
fsync.c Merge branch 'next' into upstream-merge 2010-10-27 23:44:47 -04:00
hash.c
ialloc.c Merge branch 'next' into upstream-merge 2010-10-27 23:44:47 -04:00
inode.c Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 2010-11-08 11:54:53 -08:00
ioctl.c
Kconfig
Makefile ext4: use bio layer instead of buffer layer in mpage_da_submit_io 2010-10-27 21:30:10 -04:00
mballoc.c ext4: Don't call sb_issue_discard() in ext4_free_blocks() 2010-11-08 13:49:33 -05:00
mballoc.h
migrate.c ext4: rename {ext,idx}_pblock and inline small extent functions 2010-10-27 21:30:14 -04:00
move_extent.c ext4: rename {ext,idx}_pblock and inline small extent functions 2010-10-27 21:30:14 -04:00
namei.c Merge branch 'next' into upstream-merge 2010-10-27 23:44:47 -04:00
page-io.c ext4: fix setting random pages PageUptodate 2010-11-17 21:46:06 -05:00
resize.c Merge branch 'next' into upstream-merge 2010-10-27 23:44:47 -04:00
super.c ext4: Add new ext4 inode tracepoints 2010-11-08 13:51:33 -05:00
symlink.c
xattr_security.c ext4: constify xattr_handler 2010-05-21 18:31:19 -04:00
xattr_trusted.c ext4: constify xattr_handler 2010-05-21 18:31:19 -04:00
xattr_user.c ext4: constify xattr_handler 2010-05-21 18:31:19 -04:00
xattr.c ext4: rename {exit,init}_ext4_*() to ext4_{exit,init}_*() 2010-10-27 21:30:14 -04:00
xattr.h ext4: fix compile with CONFIG_EXT4_FS_XATTR disabled 2010-10-28 09:29:17 -07:00