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 24824cd..fa237e5 100644 (file)
--- 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 *) <<