6b3286ed11
Rename 'struct namespace' to 'struct mnt_namespace' to avoid confusion with other namespaces being developped for the containers : pid, uts, ipc, etc. 'namespace' variables and attributes are also renamed to 'mnt_ns' Signed-off-by: Kirill Korotaev <dev@sw.ru> Signed-off-by: Cedric Le Goater <clg@fr.ibm.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
43 lines
861 B
C
43 lines
861 B
C
#ifndef _NAMESPACE_H_
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#define _NAMESPACE_H_
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#ifdef __KERNEL__
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#include <linux/mount.h>
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#include <linux/sched.h>
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#include <linux/nsproxy.h>
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struct mnt_namespace {
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atomic_t count;
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struct vfsmount * root;
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struct list_head list;
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wait_queue_head_t poll;
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int event;
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};
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extern int copy_mnt_ns(int, struct task_struct *);
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extern void __put_mnt_ns(struct mnt_namespace *ns);
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extern struct mnt_namespace *dup_mnt_ns(struct task_struct *,
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struct fs_struct *);
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static inline void put_mnt_ns(struct mnt_namespace *ns)
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{
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if (atomic_dec_and_lock(&ns->count, &vfsmount_lock))
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/* releases vfsmount_lock */
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__put_mnt_ns(ns);
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}
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static inline void exit_mnt_ns(struct task_struct *p)
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{
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struct mnt_namespace *ns = p->nsproxy->mnt_ns;
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if (ns)
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put_mnt_ns(ns);
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}
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static inline void get_mnt_ns(struct mnt_namespace *ns)
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{
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atomic_inc(&ns->count);
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}
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#endif
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#endif
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