diff options
| author | Daeho Jeong <daehojeong@google.com> | 2020-10-30 07:10:34 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-11-03 04:34:00 +0300 |
| commit | 9e2a5f8cfb4d9371783e21e27bba4338401f1260 (patch) | |
| tree | 269020f8682cd2626b966be54623b4bb9a72466f /include/uapi/linux/f2fs.h | |
| parent | fa4320cefb8537a70cc28c55d311a1f569697cd3 (diff) | |
| download | linux-9e2a5f8cfb4d9371783e21e27bba4338401f1260.tar.xz | |
f2fs: add F2FS_IOC_GET_COMPRESS_OPTION ioctl
Added a new F2FS_IOC_GET_COMPRESS_OPTION ioctl to get 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;
ioctl(fd, F2FS_IOC_GET_COMPRESS_OPTION, &option);
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'include/uapi/linux/f2fs.h')
| -rw-r--r-- | include/uapi/linux/f2fs.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/uapi/linux/f2fs.h b/include/uapi/linux/f2fs.h index 28bcfe8d2c27..872e61d78f29 100644 --- a/include/uapi/linux/f2fs.h +++ b/include/uapi/linux/f2fs.h @@ -36,6 +36,8 @@ _IOR(F2FS_IOCTL_MAGIC, 19, __u64) #define F2FS_IOC_SEC_TRIM_FILE _IOW(F2FS_IOCTL_MAGIC, 20, \ struct f2fs_sectrim_range) +#define F2FS_IOC_GET_COMPRESS_OPTION _IOR(F2FS_IOCTL_MAGIC, 21, \ + struct f2fs_comp_option) /* * should be same as XFS_IOC_GOINGDOWN. @@ -84,4 +86,9 @@ struct f2fs_sectrim_range { __u64 flags; }; +struct f2fs_comp_option { + __u8 algorithm; + __u8 log_cluster_size; +}; + #endif /* _UAPI_LINUX_F2FS_H */ |