f2fs: check if inmem_pages list is empty correctly

`cur' will never be NULL, we should check inmem_pages list instead.

Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index e22911f2a3783e09be5df3c7ff37ea5b9ae690c4..33d33db15d2f802e9c384da5d84c27abb0b6f244 100644 (file)
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -328,7 +328,7 @@ void drop_inmem_page(struct inode *inode, struct page *page)
                        break;
        }
 
-       f2fs_bug_on(sbi, !cur || cur->page != page);
+       f2fs_bug_on(sbi, list_empty(head) || cur->page != page);
        list_del(&cur->list);
        mutex_unlock(&fi->inmem_lock);