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authorMiklos Szeredi <mszeredi@suse.cz>2008-03-27 15:06:24 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2008-04-23 08:04:57 +0400
commita1a2c409b666befc58c2db9c7fbddf200f153470 (patch)
tree3ea8e4c8f1311436939492d70de23dcf185994de /include/linux/mnt_namespace.h
parent719f5d7f0b90ac2c8f8ca4232eb322b266fea01e (diff)
downloadlinux-a1a2c409b666befc58c2db9c7fbddf200f153470.tar.xz
[patch 5/7] vfs: mountinfo: allow using process root
Allow /proc/<pid>/mountinfo to use the root of <pid> to calculate mountpoints. - move definition of 'struct proc_mounts' to <linux/mnt_namespace.h> - add the process's namespace and root to this structure - pass a pointer to 'struct proc_mounts' into seq_operations In addition the following cleanups are made: - use a common open function for /proc/<pid>/{mounts,mountstat} - surround namespace.c part of these proc files with #ifdef CONFIG_PROC_FS - make the seq_operations structures const Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/mnt_namespace.h')
-rw-r--r--include/linux/mnt_namespace.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/mnt_namespace.h b/include/linux/mnt_namespace.h
index 8eed44f8ca73..c078aacc8116 100644
--- a/include/linux/mnt_namespace.h
+++ b/include/linux/mnt_namespace.h
@@ -5,6 +5,7 @@
#include <linux/mount.h>
#include <linux/sched.h>
#include <linux/nsproxy.h>
+#include <linux/seq_file.h>
struct mnt_namespace {
atomic_t count;
@@ -14,6 +15,13 @@ struct mnt_namespace {
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);
@@ -37,5 +45,8 @@ 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 mountstats_op;
+
#endif
#endif