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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-12-08 03:25:39 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-01-23 01:56:35 +0300 |
| commit | 1ad71a27124caf0b68ddd3c92be01aa2b2a72b2a (patch) | |
| tree | 802af8c30b004b0a3c439a9b23d25a69b9aaef5e /include/linux/f2fs_fs.h | |
| parent | 9ac1e2d88d076aa1ae9e33d44a9bbc8ae3bfa791 (diff) | |
| download | linux-1ad71a27124caf0b68ddd3c92be01aa2b2a72b2a.tar.xz | |
f2fs: add an ioctl to disable GC for specific file
This patch gives a flag to disable GC on given file, which would be useful, when
user wants to keep its block map. It also conducts in-place-update for dontmove
file.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'include/linux/f2fs_fs.h')
| -rw-r--r-- | include/linux/f2fs_fs.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index 43e98d30d2df..cfb522e6affc 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -212,6 +212,7 @@ struct f2fs_extent { #define F2FS_DATA_EXIST 0x08 /* file inline data exist flag */ #define F2FS_INLINE_DOTS 0x10 /* file having implicit dot dentries */ #define F2FS_EXTRA_ATTR 0x20 /* file having extra attribute */ +#define F2FS_PIN_FILE 0x40 /* file should not be gced */ struct f2fs_inode { __le16 i_mode; /* file mode */ @@ -229,7 +230,13 @@ struct f2fs_inode { __le32 i_ctime_nsec; /* change time in nano scale */ __le32 i_mtime_nsec; /* modification time in nano scale */ __le32 i_generation; /* file version (for NFS) */ - __le32 i_current_depth; /* only for directory depth */ + union { + __le32 i_current_depth; /* only for directory depth */ + __le16 i_gc_failures; /* + * # of gc failures on pinned file. + * only for regular files. + */ + }; __le32 i_xattr_nid; /* nid to save xattr */ __le32 i_flags; /* file attributes */ __le32 i_pino; /* parent inode number */ |