Jaegeuk Kim 740432f835 f2fs: handle failed bio allocation
As the below comment of bio_alloc_bioset, f2fs can allocate multiple bios at the
same time. So, we can't guarantee that bio is allocated all the time.

"
 *   When @bs is not NULL, if %__GFP_WAIT is set then bio_alloc will always be
 *   able to allocate a bio. This is due to the mempool guarantees. To make this
 *   work, callers must never allocate more than 1 bio at a time from this pool.
 *   Callers that need to allocate more than 1 bio must always submit the
 *   previously allocated bio for IO before attempting to allocate a new one.
 *   Failure to do so can cause deadlocks under memory pressure.
"

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-08-20 09:00:09 -07:00
..
2015-06-11 15:04:20 -07:00
2015-08-20 09:00:09 -07:00
2015-08-20 09:00:06 -07:00
2015-08-20 09:00:09 -07:00
2015-08-10 12:26:34 -07:00
2015-08-05 08:08:05 -07:00
2015-08-20 09:00:06 -07:00
2015-08-20 09:00:09 -07:00
2015-08-14 16:02:15 -07:00
2015-08-20 09:00:06 -07:00