From: Jeff Layton <jlay...@redhat.com>
Don't try to check PageError since that's potentially racy and not
necessarily going to be set after writepage errors out.
Instead, check the mapping for an error after writepage returns.
Signed-off-by: Jeff Layton <jlay...@redhat.com>
Reviewed-by: Jan Kara <j...@suse.cz>
---
mm/page-writeback.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index b901fe52b153..db30ce0b7d80 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2371,9 +2371,8 @@ int do_writepages(struct address_space *mapping, struct
writeback_control *wbc)
*
* The page must be locked by the caller and will be unlocked upon return.
*
- * write_one_page() returns a negative error code if I/O failed. Note that
- * the address_space is not marked for error. The caller must do this if
- * needed.
+ * Note that the mapping's AS_EIO/AS_ENOSPC flags will be cleared when this
+ * function returns.
*/
int write_one_page(struct page *page)
{
@@ -2391,15 +2390,15 @@ int write_one_page(struct page *page)
if (clear_page_dirty_for_io(page)) {
get_page(page);
ret = mapping->a_ops->writepage(page, &wbc);
- if (ret == 0) {
+ if (ret == 0)
wait_on_page_writeback(page);
- if (PageError(page))
- ret = -EIO;
- }
put_page(page);
} else {
unlock_page(page);
}
+
+ if (!ret)
+ ret = filemap_check_errors(mapping);
return ret;
}
EXPORT_SYMBOL(write_one_page);
--
2.13.0
--
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