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only regular files with FMODE_WRITE need to be on s_files

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-08-30 15:46:46 -04:00
parent 301f0268b6
commit 184cacabe2
1 changed files with 4 additions and 2 deletions
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6
fs/file_table.c
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@ -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))