diff options
Diffstat (limited to 'fs/file_table.c')
| -rw-r--r-- | fs/file_table.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/file_table.c b/fs/file_table.c index 3ef558f27a1c..7ce4d5dac080 100644 --- a/fs/file_table.c +++ b/fs/file_table.c @@ -156,6 +156,13 @@ static int init_file(struct file *f, int flags, const struct cred *cred) } spin_lock_init(&f->f_lock); + /* + * Note that f_pos_lock is only used for files raising + * FMODE_ATOMIC_POS and directories. Other files such as pipes + * don't need it and since f_pos_lock is in a union may reuse + * the space for other purposes. They are expected to initialize + * the respective member when opening the file. + */ mutex_init(&f->f_pos_lock); f->f_flags = flags; f->f_mode = OPEN_FMODE(flags); |