Commits
Chao Yu committed c4020b2da4c
f2fs: support F2FS_IOC_PRECACHE_EXTENTS
This patch introduces a new ioctl F2FS_IOC_PRECACHE_EXTENTS to precache
extent info like ext4, in order to gain better performance during
triggering AIO by eliminating synchronous waiting of mapping info.
Referred commit: 7869a4a6c5ca ("ext4: add support for extent pre-caching")
In addition, with newly added extent precache abilitiy, this patch add
to support FIEMAP_FLAG_CACHE in ->fiemap.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>