TechPanelGM/kernel_xiaomi_sm8250
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

f2fs: add compress_mode mount option

Browse Source 
We will add a new "compress_mode" mount option to control file
compression mode. This supports "fs" and "user". In "fs" mode (default),
f2fs does automatic compression on the compression enabled files.
In "user" mode, f2fs disables the automaic compression and gives the
user discretion of choosing the target file and the timing. It means
the user can do manual compression/decompression on the compression
enabled files using ioctls.

Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Daeho Jeong
2020-12-01 13:08:02 +09:00
committed by Jaegeuk Kim
parent 4d0706dfea
commit a864559a77
5 changed files with 56 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fs/f2fs/compress.c
View File

@@ -915,7 +915,7 @@ int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index)
static bool cluster_may_compress(struct compress_ctx *cc)
{
if (!f2fs_compressed_file(cc->inode))
if (!f2fs_need_compress_data(cc->inode))
return false;
if (f2fs_is_atomic_file(cc->inode))
return false;