[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: Qu Fuping <fs@ercist.iscas.ac.cn>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/mpage.c b/fs/mpage.c
index b92c0e6..bb9aebe 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -79,8 +79,11 @@
if (--bvec >= bio->bi_io_vec)
prefetchw(&bvec->bv_page->flags);
- if (!uptodate)
+ if (!uptodate){
SetPageError(page);
+ if (page->mapping)
+ set_bit(AS_EIO, &page->mapping->flags);
+ }
end_page_writeback(page);
} while (bvec >= bio->bi_io_vec);
bio_put(bio);