diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:15:01 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:15:01 +0000 |
| commit | 7996a3d79d55b7f879dfd62e202bbfe2963718d3 (patch) | |
| tree | 8d9f6759fec4099b9be503c11c7ed174f7204980 /libdde-linux26/contrib/include/linux/mnt_namespace.h | |
| parent | 4fbe7358c7747a9165f776eb19addbb9baf7def2 (diff) | |
really properly move files
Diffstat (limited to 'libdde-linux26/contrib/include/linux/mnt_namespace.h')
| -rw-r--r-- | libdde-linux26/contrib/include/linux/mnt_namespace.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libdde-linux26/contrib/include/linux/mnt_namespace.h b/libdde-linux26/contrib/include/linux/mnt_namespace.h new file mode 100644 index 00000000..830bbcd4 --- /dev/null +++ b/libdde-linux26/contrib/include/linux/mnt_namespace.h @@ -0,0 +1,53 @@ +#ifndef _NAMESPACE_H_ +#define _NAMESPACE_H_ +#ifdef __KERNEL__ + +#include <linux/mount.h> +#include <linux/sched.h> +#include <linux/nsproxy.h> +#include <linux/seq_file.h> + +struct mnt_namespace { + atomic_t count; + struct vfsmount * root; + struct list_head list; + wait_queue_head_t poll; + int event; +}; + +struct proc_mounts { + struct seq_file m; /* must be the first element */ + struct mnt_namespace *ns; + struct path root; + int event; +}; + +extern struct mnt_namespace *copy_mnt_ns(unsigned long, struct mnt_namespace *, + struct fs_struct *); +extern void __put_mnt_ns(struct mnt_namespace *ns); + +static inline void put_mnt_ns(struct mnt_namespace *ns) +{ + if (atomic_dec_and_lock(&ns->count, &vfsmount_lock)) + /* releases vfsmount_lock */ + __put_mnt_ns(ns); +} + +static inline void exit_mnt_ns(struct task_struct *p) +{ + struct mnt_namespace *ns = p->nsproxy->mnt_ns; + if (ns) + put_mnt_ns(ns); +} + +static inline void get_mnt_ns(struct mnt_namespace *ns) +{ + atomic_inc(&ns->count); +} + +extern const struct seq_operations mounts_op; +extern const struct seq_operations mountinfo_op; +extern const struct seq_operations mountstats_op; + +#endif +#endif |