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From: David Howells <dhowells@redhat.com>
To: viro@zeniv.linux.org.uk
Cc: linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
	dhowells@redhat.com, linux-security-module@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, linux-afs@lists.infradead.org
Subject: [PATCH 21/24] net: Export get_proc_net() [ver #7]
Date: Thu, 19 Apr 2018 14:33:35 +0100	[thread overview]
Message-ID: <152414481524.23902.11586304669285812321.stgit@warthog.procyon.org.uk> (raw)
In-Reply-To: <152414466005.23902.12967974041384198114.stgit@warthog.procyon.org.uk>

Export get_proc_net() so that write() routines attached to net-namespaced
proc files can find the network namespace that they're in.  Currently, this
is only accessible via seqfile routines.

This will permit AFS to have a separate cell database per-network namespace
and to manage each one independently of the others.

Signed-off-by: David Howells <dhowells@redhat.com>
---

 fs/proc/proc_net.c      |    3 ++-
 include/linux/proc_fs.h |    2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index 1763f370489d..23d56146e38f 100644
--- a/fs/proc/proc_net.c
+++ b/fs/proc/proc_net.c
@@ -33,10 +33,11 @@ static inline struct net *PDE_NET(struct proc_dir_entry *pde)
 	return pde->parent->data;
 }
 
-static struct net *get_proc_net(const struct inode *inode)
+struct net *get_proc_net(const struct inode *inode)
 {
 	return maybe_get_net(PDE_NET(PDE(inode)));
 }
+EXPORT_SYMBOL_GPL(get_proc_net);
 
 int seq_open_net(struct inode *ino, struct file *f,
 		 const struct seq_operations *ops, int size)
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 928ef9e4d912..47a87121d30c 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -79,6 +79,8 @@ static inline struct proc_dir_entry *proc_net_mkdir(
 	return proc_mkdir_data(name, 0, parent, net);
 }
 
+extern struct net *get_proc_net(const struct inode *inode);
+
 struct ns_common;
 int open_related_ns(struct ns_common *ns,
 		   struct ns_common *(*get_ns)(struct ns_common *ns));

  parent reply	other threads:[~2018-04-19 13:33 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-19 13:31 [PATCH 00/24] VFS: Introduce filesystem context " David Howells
2018-04-19 13:31 ` [PATCH 01/24] vfs: Undo an overly zealous MS_RDONLY -> SB_RDONLY conversion " David Howells
2018-04-19 13:31 ` [PATCH 02/24] VFS: Suppress MS_* flag defs within the kernel unless explicitly enabled " David Howells
2018-04-19 13:31 ` [PATCH 03/24] VFS: Introduce the structs and doc for a filesystem context " David Howells
2018-04-23  3:36   ` Randy Dunlap
2018-05-01 14:29   ` David Howells
2018-05-01 15:31     ` Randy Dunlap
2018-04-19 13:31 ` [PATCH 04/24] VFS: Add LSM hooks for " David Howells
2018-04-19 20:32   ` Paul Moore
2018-04-20 15:35   ` David Howells
2018-04-23 13:25     ` Stephen Smalley
2018-04-24 15:22     ` David Howells
2018-04-25 14:07       ` Stephen Smalley
2018-04-19 13:31 ` [PATCH 05/24] apparmor: Implement security hooks for the new mount API " David Howells
2018-05-04  0:10   ` John Johansen
2018-05-11 12:20   ` David Howells
2018-04-19 13:31 ` [PATCH 06/24] tomoyo: " David Howells
2018-04-19 13:31 ` [PATCH 07/24] smack: Implement filesystem context security hooks " David Howells
2018-04-19 13:31 ` [PATCH 08/24] VFS: Require specification of size of mount data for internal mounts " David Howells
2018-04-19 13:32 ` [PATCH 09/24] VFS: Implement a filesystem superblock creation/configuration context " David Howells
2018-04-19 13:32 ` [PATCH 10/24] VFS: Remove unused code after filesystem context changes " David Howells
2018-04-19 13:32 ` [PATCH 11/24] procfs: Move proc_fill_super() to fs/proc/root.c " David Howells
2018-04-19 13:32 ` [PATCH 12/24] proc: Add fs_context support to procfs " David Howells
2018-06-19  3:34   ` [12/24] " Andrei Vagin
2018-06-26  6:13     ` Andrei Vagin
2018-06-26  7:27       ` Andrei Vagin
2018-06-26  8:57       ` David Howells
2018-06-28  5:50         ` Andrei Vagin
2018-04-19 13:32 ` [PATCH 13/24] ipc: Convert mqueue fs to fs_context " David Howells
2018-04-19 13:32 ` [PATCH 14/24] cpuset: Use " David Howells
2018-04-19 13:32 ` [PATCH 15/24] kernfs, sysfs, cgroup, intel_rdt: Support " David Howells
2018-04-19 13:33 ` [PATCH 16/24] hugetlbfs: Convert to " David Howells
2018-04-19 13:33 ` [PATCH 17/24] VFS: Remove kern_mount_data() " David Howells
2018-04-19 13:33 ` [PATCH 18/24] VFS: Implement fsopen() to prepare for a mount " David Howells
2018-04-19 13:33 ` [PATCH 19/24] VFS: Implement fsmount() to effect a pre-configured " David Howells
2018-04-19 13:33 ` [PATCH 20/24] afs: Fix server record deletion " David Howells
2018-04-19 13:33 ` David Howells [this message]
2018-04-19 13:33 ` [PATCH 22/24] afs: Add fs_context support " David Howells
2018-04-19 13:33 ` [PATCH 23/24] afs: Implement namespacing " David Howells
2018-04-19 13:33 ` [PATCH 24/24] afs: Use fs_context to pass parameters over automount " David Howells

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