linux-kernel - [PATCH 5.15 861/917] f2fs: include non-compressed blocks in compr_written

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Date:   Mon, 15 Nov 2021 18:05:56 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Daeho Jeong <daehojeong@...gle.com>,
        Jaegeuk Kim <jaegeuk@...nel.org>
Subject: [PATCH 5.15 861/917] f2fs: include non-compressed blocks in compr_written_block

From: Daeho Jeong <daehojeong@...gle.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@...r.kernel.org
Signed-off-by: Daeho Jeong <daehojeong@...gle.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 fs/f2fs/compress.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1530,6 +1530,7 @@ 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);