diff options
Diffstat (limited to 'fs/kernfs/file.c')
| -rw-r--r-- | fs/kernfs/file.c | 17 |
1 files changed, 3 insertions, 14 deletions
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c index 3b354caad6b5..bb933221b4ba 100644 --- a/fs/kernfs/file.c +++ b/fs/kernfs/file.c @@ -18,19 +18,6 @@ #include "kernfs-internal.h" -/* - * There's one kernfs_open_file for each open file and one kernfs_open_node - * for each kernfs_node with one or more open files. - * - * kernfs_node->attr.open points to kernfs_open_node. attr.open is - * RCU protected. - * - * filp->private_data points to seq_file whose ->private points to - * kernfs_open_file. kernfs_open_files are chained at - * kernfs_open_node->files, which is protected by kernfs_open_file_mutex. - */ -static DEFINE_MUTEX(kernfs_open_file_mutex); - struct kernfs_open_node { struct rcu_head rcu_head; atomic_t event; @@ -51,7 +38,9 @@ static LLIST_HEAD(kernfs_notify_list); static inline struct mutex *kernfs_open_file_mutex_ptr(struct kernfs_node *kn) { - return &kernfs_open_file_mutex; + int idx = hash_ptr(kn, NR_KERNFS_LOCK_BITS); + + return &kernfs_locks->open_file_mutex[idx]; } static inline struct mutex *kernfs_open_file_mutex_lock(struct kernfs_node *kn) |