linux-kernel - [PATCH] f2fs: include non-compressed blocks in compr_written

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Message-Id: <20211006174910.2964885-1-daeho43@gmail.com>
Date:   Wed,  6 Oct 2021 10:49:10 -0700
From:   Daeho Jeong <daeho43@...il.com>
To:     linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, kernel-team@...roid.com
Cc:     Daeho Jeong <daehojeong@...gle.com>
Subject: [PATCH] f2fs: include non-compressed blocks in compr_written_block

From: Daeho Jeong <daehojeong@...gle.com>

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

Signed-off-by: Daeho Jeong <daehojeong@...gle.com>
---
 fs/f2fs/compress.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index c1bf9ad4c220..9b663eaf4805 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1530,6 +1530,7 @@ int f2fs_write_multi_pages(struct compress_ctx *cc,
 	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);
-- 
2.33.0.882.g93a45727a2-goog