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authorJaegeuk Kim <jaegeuk@kernel.org>2017-12-07 16:25:39 -0800
committerJaegeuk Kim <jaegeuk@kernel.org>2018-01-22 14:56:35 -0800
commit1ad71a27124caf0b68ddd3c92be01aa2b2a72b2a (patch)
tree802af8c30b004b0a3c439a9b23d25a69b9aaef5e /include/linux/f2fs_fs.h
parent9ac1e2d88d076aa1ae9e33d44a9bbc8ae3bfa791 (diff)
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.h9
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 */