On 2017/8/8 9:42, Jaegeuk Kim wrote: > We expect cold files write data sequentially, but sometimes some of small data > can be updated, which incurs fragmentation. > Let's avoid that. > > Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx> Reviewed-by: Chao Yu <yuchao0@xxxxxxxxxx> Thanks, > --- > fs/f2fs/segment.h | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h > index 6b871b492fd5..7f700e54b77d 100644 > --- a/fs/f2fs/segment.h > +++ b/fs/f2fs/segment.h > @@ -577,6 +577,10 @@ static inline bool need_inplace_update_policy(struct inode *inode, > if (test_opt(sbi, LFS)) > return false; > > + /* if this is cold file, we should overwrite to avoid fragmentation */ > + if (file_is_cold(inode)) > + return true; > + > if (policy & (0x1 << F2FS_IPU_FORCE)) > return true; > if (policy & (0x1 << F2FS_IPU_SSR) && need_SSR(sbi)) >
