Commit 943f7c6f authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
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f2fs: compress: fix to avoid fragment w/ OPU during f2fs_ioc_compress_file() 



If file has both cold and compress flag, during f2fs_ioc_compress_file(),
f2fs will trigger IPU for non-compress cluster and OPU for compress
cluster, so that, data of the file may be fragmented.

Fix it by always triggering OPU for IOs from user mode compression.

Signed-off-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent a4639380

fs/f2fs/data.c

+5 −0
Original line number Diff line number Diff line
@@ -2665,6 +2665,11 @@ bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio) 
		return true;

	if (f2fs_is_atomic_file(inode))

		return true;

	/* rewrite low ratio compress data w/ OPU mode to avoid fragmentation */

	if (f2fs_compressed_file(inode) &&

		F2FS_OPTION(sbi).compress_mode == COMPR_MODE_USER &&

		is_inode_flag_set(inode, FI_ENABLE_COMPRESS))

		return true;



	/* swap file is migrating in aligned write mode */

	if (is_inode_flag_set(inode, FI_ALIGNED_WRITE))