f2fs: cache: initialize compress cache

This patch introduces compress_blocks in f2fs_sb_info structure, initializes
and destroys the compress cache during filesystem mount and unmount.

It adds an ino union field in struct f2fs_cached_block (sharing space
with writeback linkage for zero memory overhead) to track per-inode
cached blocks, and registers compress cache into the memory shrinker.

Reviewed-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

0 files changed, 0 insertions, 0 deletions