[PATCH 5.14 797/849] f2fs: include non-compressed blocks in compr_written_block

Greg Kroah-Hartman
2021-11-15T23:23:24Z

From: Daeho Jeong <daehojeong@google.com>

commit 09631cf3234d32156e7cae32275f5a4144c683c5 upstream.

Need to include non-compressed blocks in compr_written_block to
estimate average compression ratio more accurately.

Fixes: 5ac443e26a09 ("f2fs: add sysfs nodes to get runtime compression stat")
Cc: stable@vger.kernel.org
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/f2fs/compress.c | 1 +
1 file changed, 1 insertion(+)

--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1476,6 +1476,7 @@ int f2fs_write_multi_pages(struct compre
if (cluster_may_compress(cc)) {
err = f2fs_compress_pages(cc);
if (err == -EAGAIN) {
+ add_compr_block_stat(cc->inode, cc->cluster_size);
goto write;
} else if (err) {
f2fs_put_rpages_wbc(cc, wbc, true, 1);