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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-01-29 11:45:33 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-02-11 17:04:41 -0800 |
| commit | 119ee9144534141822462e3e8a5ccc8dc537f712 (patch) | |
| tree | d1db8598f68e80459d40343d70883a62606de7d5 /fs/f2fs/f2fs.h | |
| parent | 11504a8e7e20e2ff2e68176850e9b83b8bae760e (diff) | |
| download | lwn-119ee9144534141822462e3e8a5ccc8dc537f712.tar.gz lwn-119ee9144534141822462e3e8a5ccc8dc537f712.zip | |
f2fs: split UMOUNT and FASTBOOT flags
This patch adds FASTBOOT flag into checkpoint as follows.
- CP_UMOUNT_FLAG is set when system is umounted.
- CP_FASTBOOT_FLAG is set when intermediate checkpoint having node summaries
was done.
So, if you get CP_UMOUNT_FLAG from checkpoint, the system was umounted cleanly.
Instead, if there was sudden-power-off, you can get CP_FASTBOOT_FLAG or nothing.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 5abe0836c179..8231a599a305 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -100,6 +100,7 @@ enum { enum { CP_UMOUNT, + CP_FASTBOOT, CP_SYNC, CP_DISCARD, }; @@ -764,6 +765,28 @@ static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) up_write(&sbi->cp_rwsem); } +static inline int __get_cp_reason(struct f2fs_sb_info *sbi) +{ + int reason = CP_SYNC; + + if (test_opt(sbi, FASTBOOT)) + reason = CP_FASTBOOT; + if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) + reason = CP_UMOUNT; + return reason; +} + +static inline bool __remain_node_summaries(int reason) +{ + return (reason == CP_UMOUNT || reason == CP_FASTBOOT); +} + +static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) +{ + return (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) || + is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FASTBOOT_FLAG)); +} + /* * Check whether the given nid is within node id range. */ |