tree 32391cbf119529871a6663ed62d5ab0b2e94a09e
parent 83e21db6939dd6ff50a81d54aaef4b44847aefff
author Jaegeuk Kim <jaegeuk@kernel.org> 1426637795 -0700
committer Jaegeuk Kim <jaegeuk@kernel.org> 1428703726 -0700

f2fs: avoid punch_hole overhead when releasing volatile data

This patch is to avoid some punch_hole overhead when releasing volatile data.
If volatile data was not written yet, we just can make the first page as zero.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>