From: Chao Yu <chao@kernel.org>
Date: Sat, 18 Jun 2022 17:51:55 +0000 (+0800)
Subject: f2fs: initialize page_array_entry slab only if compression feature is on
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=29be7ec3df7a3ed95584d39aa4014df0cd056991;p=linux.git

f2fs: initialize page_array_entry slab only if compression feature is on

Otherwise, in image which doesn't support compression feature,
page_array_entry will be initialized w/o use.

Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 24824cd96f367..fa237e5c7173b 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1908,6 +1908,9 @@ int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi)
 	dev_t dev = sbi->sb->s_bdev->bd_dev;
 	char slab_name[32];
 
+	if (!f2fs_sb_has_compression(sbi))
+		return 0;
+
 	sprintf(slab_name, "f2fs_page_array_entry-%u:%u", MAJOR(dev), MINOR(dev));
 
 	sbi->page_array_slab_size = sizeof(struct page *) <<