diff options
| author | Chao Yu <yuchao0@huawei.com> | 2018-02-28 17:07:27 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-03-13 08:05:57 +0900 |
| commit | b6a06cbbb5f7fd03589cff9178314af04c568826 (patch) | |
| tree | e9e782bd93dc91a35aeb9af8f74c7e82fb47b8bb /fs/f2fs/f2fs.h | |
| parent | 1dc0f8991d4d93194fb7a3ac3164e05e8b24ad02 (diff) | |
f2fs: support hot file extension
This patch supports to recognize hot file extension in f2fs, so that we
can allocate proper hot segment location for its data, which can lead to
better hot/cold seperation in filesystem.
In addition, we changes a bit on query/add/del operation method for
extension_list sysfs entry as below:
- Query: cat /sys/fs/f2fs/<disk>/extension_list
- Add: echo 'extension' > /sys/fs/f2fs/<disk>/extension_list
- Del: echo '!extension' > /sys/fs/f2fs/<disk>/extension_list
- Add: echo '[h/c]extension' > /sys/fs/f2fs/<disk>/extension_list
- Del: echo '[h/c]!extension' > /sys/fs/f2fs/<disk>/extension_list
- [h] means add/del hot file extension
- [c] means add/del cold file extension
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 833c9bc06d03..f6dc70666ebb 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -576,6 +576,7 @@ enum { #define FADVISE_ENCRYPT_BIT 0x04 #define FADVISE_ENC_NAME_BIT 0x08 #define FADVISE_KEEP_SIZE_BIT 0x10 +#define FADVISE_HOT_BIT 0x20 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) @@ -590,6 +591,9 @@ enum { #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) +#define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT) +#define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT) +#define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT) #define DEF_DIR_LEVEL 0 @@ -2614,7 +2618,7 @@ void handle_failed_inode(struct inode *inode); * namei.c */ int update_extension_list(struct f2fs_sb_info *sbi, const char *name, - bool set); + bool hot, bool set); struct dentry *f2fs_get_parent(struct dentry *child); /* |