Commit 854715be authored by Qu Fuping's avatar Qu Fuping Committed by Linus Torvalds
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[PATCH] mpage_end_io_write() I/O error handling fix

When fsync() runs wait_on_page_writeback_range() it only inspects pages which
are actually under I/O (PAGECACHE_TAG_WRITEBACK).  If a page completed I/O
prior to wait_on_page_writeback_range() looking at it, it is supposed to have
recorded its I/O error state in the address_space.

But mpage_mpage_end_io_write() forgot to set the address_space error flag in
this case.

Signed-off-by: default avatarQu Fuping <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent d3045064
......@@ -79,8 +79,11 @@ static int mpage_end_io_write(struct bio *bio, unsigned int bytes_done, int err)
if (--bvec >= bio->bi_io_vec)
if (!uptodate)
if (!uptodate){
if (page->mapping)
set_bit(AS_EIO, &page->mapping->flags);
} while (bvec >= bio->bi_io_vec);
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