diff options
| author | Daeho Jeong <daehojeong@google.com> | 2022-11-11 09:04:06 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2022-11-28 12:46:23 -0800 |
| commit | 41e8f85a75fc60e1543e4903428a1b481b672a17 (patch) | |
| tree | 73ce84c5a51dc782dafce31c222c0eed27cba7be /include/uapi/linux/f2fs.h | |
| parent | 967eaad1fed5f6335ea97a47d45214744dc57925 (diff) | |
f2fs: introduce F2FS_IOC_START_ATOMIC_REPLACE
introduce a new ioctl to replace the whole content of a file atomically,
which means it induces truncate and content update at the same time.
We can start it with F2FS_IOC_START_ATOMIC_REPLACE and complete it with
F2FS_IOC_COMMIT_ATOMIC_WRITE. Or abort it with
F2FS_IOC_ABORT_ATOMIC_WRITE.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'include/uapi/linux/f2fs.h')
| -rw-r--r-- | include/uapi/linux/f2fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/f2fs.h b/include/uapi/linux/f2fs.h index 3121d127d5aa..955d440be104 100644 --- a/include/uapi/linux/f2fs.h +++ b/include/uapi/linux/f2fs.h @@ -42,6 +42,7 @@ struct f2fs_comp_option) #define F2FS_IOC_DECOMPRESS_FILE _IO(F2FS_IOCTL_MAGIC, 23) #define F2FS_IOC_COMPRESS_FILE _IO(F2FS_IOCTL_MAGIC, 24) +#define F2FS_IOC_START_ATOMIC_REPLACE _IO(F2FS_IOCTL_MAGIC, 25) /* * should be same as XFS_IOC_GOINGDOWN. |