From 119ee9144534141822462e3e8a5ccc8dc537f712 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Thu, 29 Jan 2015 11:45:33 -0800 Subject: 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 Signed-off-by: Jaegeuk Kim --- fs/f2fs/f2fs.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'fs/f2fs/f2fs.h') 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. */ -- cgit v1.2.3