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f2fs: don't need to collect dirty sit entries and flush journal when there's no dirty sit entries

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Don't need to collect dirty sit entries and flush sit journal to sit
 entries when there's no dirty sit entries. This patch check dirty_sentries
 earlier just like flush_nat_entries.

Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Wanpeng Li 2015-02-27 16:52:50 +08:00 committed by Jaegeuk Kim
parent 2bda542d59
commit 2b11a74b21
1 changed files with 3 additions and 3 deletions
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6
fs/f2fs/segment.c
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@ -1733,6 +1733,9 @@ void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
mutex_lock(&curseg->curseg_mutex);
mutex_lock(&sit_i->sentry_lock);
if (!sit_i->dirty_sentries)
goto out;
/*
* add and account sit entries of dirty bitmap in sit entry
* set temporarily
@ -1747,9 +1750,6 @@ void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
if (!__has_cursum_space(sum, sit_i->dirty_sentries, SIT_JOURNAL))
remove_sits_in_journal(sbi);
if (!sit_i->dirty_sentries)
goto out;
/*
* there are two steps to flush sit entries:
* #1, flush sit entries to journal in current cold data summary block.