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authorAl Viro <viro@zeniv.linux.org.uk>2013-08-30 23:46:46 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2013-09-04 06:50:28 +0400
commit184cacabe274a0af65b3876e9cd95c9fdde069ea (patch)
treed575f2cabd8a1d422d09e26967a04790979f7fee /fs/file_table.c
parent301f0268b63d1b07268e46f5901fc51d6cac20eb (diff)
downloadlinux-184cacabe274a0af65b3876e9cd95c9fdde069ea.tar.xz
only regular files with FMODE_WRITE need to be on s_files
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/file_table.c')
-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))