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Subject[PATCH 3/3] f2fs: pass checkpoint reason on roll-forward recovery
Date
This patch adds CP_RECOVERY to remain recovery information for checkpoint.
And, it makes sure writing checkpoint in this case.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/checkpoint.c | 6 +++++-
fs/f2fs/f2fs.h | 1 +
fs/f2fs/recovery.c | 2 +-
include/trace/events/f2fs.h | 1 +
4 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 384bfc4..a5e17a2 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1051,7 +1051,7 @@ void write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
mutex_lock(&sbi->cp_mutex);

if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) &&
- cpc->reason != CP_DISCARD && cpc->reason != CP_UMOUNT)
+ (cpc->reason == CP_FASTBOOT || cpc->reason == CP_SYNC))
goto out;
if (unlikely(f2fs_cp_error(sbi)))
goto out;
@@ -1086,6 +1086,10 @@ void write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)

unblock_operations(sbi);
stat_inc_cp_count(sbi->stat_info);
+
+ if (cpc->reason == CP_RECOVERY)
+ f2fs_msg(sbi->sb, KERN_NOTICE,
+ "checkpoint: version = %llx", ckpt_ver);
out:
mutex_unlock(&sbi->cp_mutex);
trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint");
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 053361a..c06a25e 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -103,6 +103,7 @@ enum {
CP_UMOUNT,
CP_FASTBOOT,
CP_SYNC,
+ CP_RECOVERY,
CP_DISCARD,
};

diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 4b742c9..8d8ea99 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -564,7 +564,7 @@ out:
mutex_unlock(&sbi->cp_mutex);
} else if (need_writecp) {
struct cp_control cpc = {
- .reason = CP_SYNC,
+ .reason = CP_RECOVERY,
};
mutex_unlock(&sbi->cp_mutex);
write_checkpoint(sbi, &cpc);
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 75724bd..8804f22 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -78,6 +78,7 @@
{ CP_UMOUNT, "Umount" }, \
{ CP_FASTBOOT, "Fastboot" }, \
{ CP_SYNC, "Sync" }, \
+ { CP_RECOVERY, "Recovery" }, \
{ CP_DISCARD, "Discard" })

struct victim_sel_policy;
--
2.1.1


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