ocfs2: fix data corruption after failed write
stable inclusion from stable-v5.10.177 commit 91d7a4bd5656552d6259e2d0f8859f9e8cc5ef68 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I88YNP Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=91d7a4bd5656552d6259e2d0f8859f9e8cc5ef68 -------------------------------- commit 90410bcf upstream. When buffered write fails to copy data into underlying page cache page, ocfs2_write_end_nolock() just zeroes out and dirties the page. This can leave dirty page beyond EOF and if page writeback tries to write this page before write succeeds and expands i_size, page gets into inconsistent state where page dirty bit is clear but buffer dirty bits stay set resulting in page data never getting written and so data copied to the page is lost. Fix the problem by invalidating page beyond EOF after failed write. Link: https://lkml.kernel.org/r/20230302153843.18499-1-jack@suse.cz Fixes: 6dbf7bb5 ("fs: Don't invalidate page buffers in block_write_full_page()") Signed-off-by:Jan Kara <jack@suse.cz> Reviewed-by:
Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Jun Piao <piaojun@huawei.com> Cc: <stable@vger.kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> [ replace block_invalidate_folio to block_invalidatepage ] Signed-off-by:
Joseph Qi <joseph.qi@linux.alibaba.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
sanglipeng <sanglipeng1@jd.com>
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