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| author | Hisashi Hifumi | 2008-04-28 11:12:08 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2008-04-28 17:58:18 +0200 |
| commit | 0dd1334faf7e075bfdb6f5284eed65210b296fc1 (patch) | |
| tree | d64b7b1d4035d8b524b01d5cd3800135edcacc25 /mm/mmap.c | |
| parent | remove sparse warning for mmzone.h (diff) | |
| download | kernel-qcow2-linux-0dd1334faf7e075bfdb6f5284eed65210b296fc1.tar.gz kernel-qcow2-linux-0dd1334faf7e075bfdb6f5284eed65210b296fc1.tar.xz kernel-qcow2-linux-0dd1334faf7e075bfdb6f5284eed65210b296fc1.zip | |
fix invalidate_inode_pages2_range() to not clear ret
DIO invalidates page cache through invalidate_inode_pages2_range().
invalidate_inode_pages2_range() sets ret=-EIO when
invalidate_complete_page2() fails, but this ret is cleared if
do_launder_page() succeed on a page of next index.
In this case, dio is carried out even if invalidate_complete_page2() fails
on some pages.
This can cause inconsistency between memory and blocks on HDD because the
page cache still exists.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Hisashi Hifumi <hifumi.hisashi@oss.ntt.co.jp>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Ken Chen <kenchen@google.com>
Cc: Zach Brown <zach.brown@oracle.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Chuck Lever <cel@citi.umich.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mmap.c')
0 files changed, 0 insertions, 0 deletions