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f2fs: set dirty state for filesystem only when updating meta data 

We don't guarantee integrity of user data after checkpoint, since we only
guarantee meta data integrity for data consistency of filesystem.

Due to above reason, we only need to set fs as dirty when meta data is
updated, so that we can skip writing checkpoint in some case of non-meta
data is updated.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2016-08-18 17:46:14 +08:00 committed by Jaegeuk Kim
parent 58cce381fa
commit 7c4abcbecc
1 changed files with 4 additions and 0 deletions
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4
fs/f2fs/f2fs.h
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@ -1200,6 +1200,10 @@ static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
{
percpu_counter_inc(&sbi->nr_pages[count_type]);
if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES)
return;
set_sbi_flag(sbi, SBI_IS_DIRTY);
}