diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-04-13 15:17:00 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-04-24 12:55:41 -0700 |
| commit | e066b83c9b40f3a6951fb693ef0943fa1dfc40c2 (patch) | |
| tree | 9082ecce33bd28e22ffe4a7751fbb6c4fb20dbcd /fs/f2fs/f2fs.h | |
| parent | 04485987f05388ffec04cdab7808ba26db30c9b8 (diff) | |
f2fs: add ioctl to flush data from faster device to cold area
This patch adds an ioctl to flush data in faster device to cold area. User can
give device number and number of segments to move. It doesn't move it if there
is only one device.
The parameter looks like:
struct f2fs_flush_device {
u32 dev_num; /* device number to flush */
u32 segments; /* # of segments to flush */
};
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 58d288e596a7..59a08e73f194 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -300,6 +300,8 @@ static inline bool __has_cursum_space(struct f2fs_journal *journal, #define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8) #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ struct f2fs_move_range) +#define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \ + struct f2fs_flush_device) #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY @@ -336,6 +338,11 @@ struct f2fs_move_range { u64 len; /* size to move */ }; +struct f2fs_flush_device { + u32 dev_num; /* device number to flush */ + u32 segments; /* # of segments to flush */ +}; + /* * For INODE and NODE manager */ @@ -980,7 +987,6 @@ struct f2fs_sb_info { int bg_gc; /* background gc calls */ unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ #endif - unsigned int last_victim[2]; /* last victim segment # */ spinlock_t stat_lock; /* lock for stat operations */ /* For sysfs suppport */ @@ -2362,7 +2368,8 @@ int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, int start_gc_thread(struct f2fs_sb_info *sbi); void stop_gc_thread(struct f2fs_sb_info *sbi); block_t start_bidx_of_node(unsigned int node_ofs, struct inode *inode); -int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background); +int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, + unsigned int segno); void build_gc_manager(struct f2fs_sb_info *sbi); /* |