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-rw-r--r--fs/file_table.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/file_table.c b/fs/file_table.c
index b44e4c559786..322cd37626cb 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -385,6 +385,10 @@ static inline void __file_sb_list_add(struct file *file, struct super_block *sb)
*/
void file_sb_list_add(struct file *file, struct super_block *sb)
{
+ if (likely(!(file->f_mode & FMODE_WRITE)))
+ return;
+ if (!S_ISREG(file_inode(file)->i_mode))
+ return;
lg_local_lock(&files_lglock);
__file_sb_list_add(file, sb);
lg_local_unlock(&files_lglock);
@@ -450,8 +454,6 @@ void mark_files_ro(struct super_block *sb)
lg_global_lock(&files_lglock);
do_file_list_for_each_entry(sb, f) {
- if (!S_ISREG(file_inode(f)->i_mode))
- continue;
if (!file_count(f))
continue;
if (!(f->f_mode & FMODE_WRITE))