Messages in this thread | | | Subject | Re: [PATCH] f2fs: set dirty state for filesystem only when updating meta data | From | Chao Yu <> | Date | Thu, 18 Aug 2016 17:45:12 +0800 |
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On 2016/8/18 17:05, Chao Yu wrote: > 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> > --- > fs/f2fs/f2fs.h | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h > index 5a10bce..1659d10 100644 > --- a/fs/f2fs/f2fs.h > +++ b/fs/f2fs/f2fs.h > @@ -1220,7 +1220,9 @@ 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]); > - set_sbi_flag(sbi, SBI_IS_DIRTY); > + if (count_type == F2FS_DIRTY_DENTS || count_type == F2FS_DIRTY_NODES || > + count_type == F2FS_DIRTY_META)
Sorry, I miss one condition here, please ignore this patch.
Thanks,
> + set_sbi_flag(sbi, SBI_IS_DIRTY); > } > > static inline void inode_inc_dirty_pages(struct inode *inode) >
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