f2fs: use IPU for cold files



We expect cold files write data sequentially, but sometimes some of small data
can be updated, which incurs fragmentation.
Let's avoid that.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

parent 008396e1

fs/f2fs/segment.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -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))