f2fs: Prepare for supporting delayed bio completion

Use bio frontpadding to allocate memory for a work_struct when
allocating a bio.

Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Bart Van Assche 2026-06-10 12:34:17 -07:00 • committed by Jaegeuk Kim
commit 41b7928813