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| author | Daeho Jeong <daehojeong@google.com> | 2020-10-30 07:10:35 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-12-03 08:59:38 +0300 |
| commit | e1e8debec6564d0c355aab84c93de8e357f397bd (patch) | |
| tree | 0e3b14248fb788eec5a19f8afffc1c2d48ca7480 /include/uapi/linux/f2fs.h | |
| parent | 9e2a5f8cfb4d9371783e21e27bba4338401f1260 (diff) | |
| download | linux-e1e8debec6564d0c355aab84c93de8e357f397bd.tar.xz | |
f2fs: add F2FS_IOC_SET_COMPRESS_OPTION ioctl
Added a new F2FS_IOC_SET_COMPRESS_OPTION ioctl to change file
compression option of a file.
struct f2fs_comp_option {
u8 algorithm; => compression algorithm
=> 0:lzo, 1:lz4, 2:zstd, 3:lzorle
u8 log_cluster_size; => log scale cluster size
=> 2 ~ 8
};
struct f2fs_comp_option option;
option.algorithm = 1;
option.log_cluster_size = 7;
ioctl(fd, F2FS_IOC_SET_COMPRESS_OPTION, &option);
Signed-off-by: Daeho Jeong <daehojeong@google.com>
[Chao Yu: remove f2fs_is_compress_algorithm_valid()]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'include/uapi/linux/f2fs.h')
| -rw-r--r-- | include/uapi/linux/f2fs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/f2fs.h b/include/uapi/linux/f2fs.h index 872e61d78f29..f00199a2e38b 100644 --- a/include/uapi/linux/f2fs.h +++ b/include/uapi/linux/f2fs.h @@ -38,6 +38,8 @@ struct f2fs_sectrim_range) #define F2FS_IOC_GET_COMPRESS_OPTION _IOR(F2FS_IOCTL_MAGIC, 21, \ struct f2fs_comp_option) +#define F2FS_IOC_SET_COMPRESS_OPTION _IOW(F2FS_IOCTL_MAGIC, 22, \ + struct f2fs_comp_option) /* * should be same as XFS_IOC_GOINGDOWN. |