From 76f668be1e8e87d235fbd50037f50fdde948b46d Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 16 May 2018 07:19:01 +0200 Subject: proc: introduce a proc_pid_ns helper Factor out retrieving the per-sb pid namespaces from the sb private data into an easier to understand helper. Suggested-by: Eric W. Biederman Signed-off-by: Christoph Hellwig --- include/linux/proc_fs.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 928ef9e4d912..4edcde510631 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -83,4 +83,10 @@ struct ns_common; int open_related_ns(struct ns_common *ns, struct ns_common *(*get_ns)(struct ns_common *ns)); +/* get the associated pid namespace for a file in procfs */ +static inline struct pid_namespace *proc_pid_ns(struct inode *inode) +{ + return inode->i_sb->s_fs_info; +} + #endif /* _LINUX_PROC_FS_H */ -- cgit v1.2.3