diff options
Diffstat (limited to 'fs/file_table.c')
| -rw-r--r-- | fs/file_table.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/file_table.c b/fs/file_table.c index ee21b3da9d08..e68e97d4f00a 100644 --- a/fs/file_table.c +++ b/fs/file_table.c @@ -82,6 +82,18 @@ static inline void file_free(struct file *f) call_rcu(&f->f_rcuhead, file_free_rcu); } +void release_empty_file(struct file *f) +{ + WARN_ON_ONCE(f->f_mode & (FMODE_BACKING | FMODE_OPENED)); + /* Uhm, we better find out who grabs references to an unopened file. */ + WARN_ON_ONCE(atomic_long_cmpxchg(&f->f_count, 1, 0) != 1); + security_file_free(f); + put_cred(f->f_cred); + if (likely(!(f->f_mode & FMODE_NOACCOUNT))) + percpu_counter_dec(&nr_files); + kmem_cache_free(filp_cachep, f); +} + /* * Return the total number of open files in the system */ |