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>
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 5abe083..8231a59 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -100,6 +100,7 @@
enum {
CP_UMOUNT,
+ CP_FASTBOOT,
CP_SYNC,
CP_DISCARD,
};
@@ -764,6 +765,28 @@
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.
*/