diff options
Diffstat (limited to 'fs/mount.h')
| -rw-r--r-- | fs/mount.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/mount.h b/fs/mount.h index f0866076de6e..d64c594be6c4 100644 --- a/fs/mount.h +++ b/fs/mount.h @@ -1,7 +1,6 @@ #include <linux/mount.h> #include <linux/seq_file.h> #include <linux/poll.h> -#include <linux/lglock.h> struct mnt_namespace { atomic_t count; @@ -30,6 +29,7 @@ struct mount { struct mount *mnt_parent; struct dentry *mnt_mountpoint; struct vfsmount mnt; + struct rcu_head mnt_rcu; #ifdef CONFIG_SMP struct mnt_pcp __percpu *mnt_pcp; #else @@ -80,21 +80,23 @@ static inline int is_mounted(struct vfsmount *mnt) extern struct mount *__lookup_mnt(struct vfsmount *, struct dentry *); extern struct mount *__lookup_mnt_last(struct vfsmount *, struct dentry *); +extern bool legitimize_mnt(struct vfsmount *, unsigned); + static inline void get_mnt_ns(struct mnt_namespace *ns) { atomic_inc(&ns->count); } -extern struct lglock vfsmount_lock; +extern seqlock_t mount_lock; static inline void lock_mount_hash(void) { - br_write_lock(&vfsmount_lock); + write_seqlock(&mount_lock); } static inline void unlock_mount_hash(void) { - br_write_unlock(&vfsmount_lock); + write_sequnlock(&mount_lock); } struct proc_mounts { |