From: Ian Kent <raven@themaw.net>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: autofs mailing list <autofs@vger.kernel.org>,
Kernel Mailing List <linux-kernel@vger.kernel.org>,
Al Viro <viro@ZenIV.linux.org.uk>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Omar Sandoval <osandov@osandov.com>,
"Eric W. Biederman" <ebiederm@xmission.com>
Subject: [PATCH 1/4] fs - make is_local_mountpoint() usable by others
Date: Wed, 14 Sep 2016 14:14:34 +0800 [thread overview]
Message-ID: <20160914061434.24714.490.stgit@pluto.themaw.net> (raw)
The is_local_mountpoint() function will be needed for autofs
to check if a dentry is a mountpoint in the current namespace.
Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Omar Sandoval <osandov@osandov.com>
---
fs/mount.h | 9 ---------
fs/namespace.c | 1 +
include/linux/mount.h | 9 +++++++++
3 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/fs/mount.h b/fs/mount.h
index 14db05d..c25e6e8 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -127,12 +127,3 @@ struct proc_mounts {
};
extern const struct seq_operations mounts_op;
-
-extern bool __is_local_mountpoint(struct dentry *dentry);
-static inline bool is_local_mountpoint(struct dentry *dentry)
-{
- if (!d_mountpoint(dentry))
- return false;
-
- return __is_local_mountpoint(dentry);
-}
diff --git a/fs/namespace.c b/fs/namespace.c
index 7bb2cda..bea1507 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -725,6 +725,7 @@ bool __is_local_mountpoint(struct dentry *dentry)
out:
return is_covered;
}
+EXPORT_SYMBOL(__is_local_mountpoint);
static struct mountpoint *lookup_mountpoint(struct dentry *dentry)
{
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 54a594d..575b745 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -15,6 +15,7 @@
#include <linux/spinlock.h>
#include <linux/seqlock.h>
#include <linux/atomic.h>
+#include <linux/dcache.h>
struct super_block;
struct vfsmount;
@@ -96,4 +97,12 @@ extern void mark_mounts_for_expiry(struct list_head *mounts);
extern dev_t name_to_dev_t(const char *name);
+extern bool __is_local_mountpoint(struct dentry *dentry);
+static inline bool is_local_mountpoint(struct dentry *dentry)
+{
+ if (!d_mountpoint(dentry))
+ return false;
+
+ return __is_local_mountpoint(dentry);
+}
#endif /* _LINUX_MOUNT_H */
next reply other threads:[~2016-09-14 6:14 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-14 6:14 Ian Kent [this message]
2016-09-14 6:14 ` [PATCH 2/4] fs - add have_local_submounts() Ian Kent
2016-09-14 6:14 ` [PATCH 3/4] autofs - make mountpoint checks namespace aware Ian Kent
2016-09-14 17:28 ` Eric W. Biederman
2016-09-15 0:09 ` Ian Kent
2016-09-15 0:32 ` Omar Sandoval
2016-09-15 2:08 ` Eric W. Biederman
2016-09-15 4:12 ` Ian Kent
2016-09-15 8:19 ` Ian Kent
2016-09-16 0:47 ` Eric W. Biederman
2016-09-16 2:58 ` Ian Kent
2016-09-19 0:58 ` Ian Kent
2016-09-20 16:09 ` Eric W. Biederman
2016-09-15 1:03 ` Ian Kent
2016-09-16 21:14 ` Omar Sandoval
2016-09-17 20:10 ` Mateusz Guzik
2016-09-19 1:36 ` Ian Kent
2016-09-20 16:50 ` Eric W. Biederman
2016-09-20 22:44 ` Ian Kent
2016-09-20 23:00 ` Ian Kent
2016-09-22 1:33 ` Ian Kent
2016-09-22 15:43 ` Eric W. Biederman
2016-09-23 0:55 ` Ian Kent
2016-09-23 1:37 ` Eric W. Biederman
2016-09-23 4:26 ` Ian Kent
2016-09-23 12:00 ` Ian Kent
2016-09-28 10:18 ` Ian Kent
2016-09-23 19:15 ` Eric W. Biederman
2016-09-24 0:11 ` Ian Kent
2016-09-26 16:05 ` Eric W. Biederman
2016-09-27 1:52 ` Ian Kent
2016-09-27 13:14 ` Eric W. Biederman
2016-09-28 0:19 ` Ian Kent
2016-09-14 6:14 ` [PATCH 4/4] fs - remove unused have_submounts() function Ian Kent
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