Commit 3c7df87d authored Jul 08, 2015 by Fan Li Committed by Jaegeuk Kim Aug 04, 2015

f2fs: don't try to split extents shorter than F2FS_MIN_EXTENT_LEN



Since only parts of extents longer than F2FS_MIN_EXTENT_LEN will
be kept in extent cache after split, extents already shorter than
F2FS_MIN_EXTENT_LEN don't need to try split at all.

Signed-off-by: Fan Li <fanofcode.li@samsung.com>
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

parent 90d4388a

fs/f2fs/data.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -585,7 +585,7 @@ static bool f2fs_update_extent_tree(struct inode *inode, pgoff_t fofs,
		__detach_extent_node(sbi, et, en);

		/* 2. if extent can be split more, split and insert the left part */
		if (dei.len > 1) {
		if (dei.len > F2FS_MIN_EXTENT_LEN) {
		/* insert left part of split extent into cache */
		if (fofs - dei.fofs >= F2FS_MIN_EXTENT_LEN) {
		set_extent_info(&ei, dei.fofs, dei.blk,