From: Zhang Qilong <zhangqilong3@huawei.com>
Date: Tue, 6 Sep 2022 14:53:47 +0000 (+0800)
Subject: f2fs: start freeing cluster pages from the unused number
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ebaaec351e4fef86afe38002b6a8c15178fd3610;p=linux.git

f2fs: start freeing cluster pages from the unused number

We can start freeing cluster page(s) from which compression
is not used. It will get better performance.

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index e4db3b7932a37..dd1caba46eed7 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -690,9 +690,7 @@ static int f2fs_compress_pages(struct compress_ctx *cc)
 	vm_unmap_ram(cc->cbuf, cc->nr_cpages);
 	vm_unmap_ram(cc->rbuf, cc->cluster_size);
 
-	for (i = 0; i < cc->nr_cpages; i++) {
-		if (i < new_nr_cpages)
-			continue;
+	for (i = new_nr_cpages; i < cc->nr_cpages; i++) {
 		f2fs_compress_free_page(cc->cpages[i]);
 		cc->cpages[i] = NULL;
 	}