2011-11-23 17:26:23 -07:00
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#include <linux/mount.h>
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2011-11-24 20:53:09 -07:00
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struct mnt_pcp {
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int mnt_count;
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int mnt_writers;
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};
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2011-11-23 10:14:10 -07:00
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struct mount {
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2011-11-24 19:01:32 -07:00
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struct list_head mnt_hash;
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2011-11-24 20:19:58 -07:00
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struct mount *mnt_parent;
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2011-11-24 20:25:07 -07:00
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struct dentry *mnt_mountpoint;
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2011-11-23 10:14:10 -07:00
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struct vfsmount mnt;
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2011-11-24 20:53:09 -07:00
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#ifdef CONFIG_SMP
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struct mnt_pcp __percpu *mnt_pcp;
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atomic_t mnt_longterm; /* how many of the refs are longterm */
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#else
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int mnt_count;
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int mnt_writers;
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#endif
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2011-11-24 21:24:33 -07:00
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struct list_head mnt_mounts; /* list of children, anchored here */
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struct list_head mnt_child; /* and going through their mnt_child */
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2011-11-24 22:07:16 -07:00
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/* yet to be moved - up to mnt_slave */
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struct vfsmount *mnt_master; /* slave is on master->mnt_slave_list */
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2011-11-23 10:14:10 -07:00
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};
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static inline struct mount *real_mount(struct vfsmount *mnt)
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{
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return container_of(mnt, struct mount, mnt);
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}
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2011-11-24 19:47:05 -07:00
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static inline int mnt_has_parent(struct mount *mnt)
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2011-11-23 17:26:23 -07:00
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{
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2011-11-24 20:19:58 -07:00
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return mnt != mnt->mnt_parent;
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2011-11-23 17:26:23 -07:00
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}
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2011-11-24 16:22:03 -07:00
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extern struct mount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
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