diff options
Diffstat (limited to 'fs/mount.h')
| -rw-r--r-- | fs/mount.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/mount.h b/fs/mount.h index 3168dc41bad5..7076f25af35d 100644 --- a/fs/mount.h +++ b/fs/mount.h @@ -1,6 +1,7 @@ #include <linux/mount.h> #include <linux/seq_file.h> #include <linux/poll.h> +#include <linux/lglock.h> struct mnt_namespace { atomic_t count; @@ -83,6 +84,18 @@ static inline void get_mnt_ns(struct mnt_namespace *ns) atomic_inc(&ns->count); } +extern struct lglock vfsmount_lock; + +static inline void lock_mount_hash(void) +{ + br_write_lock(&vfsmount_lock); +} + +static inline void unlock_mount_hash(void) +{ + br_write_unlock(&vfsmount_lock); +} + struct proc_mounts { struct seq_file m; struct mnt_namespace *ns; |