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UPSTREAM: vfs: Convert sockfs to use the new mount API

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Convert the sockfs filesystem to the new internal mount API as the old
one will be obsoleted and removed.  This allows greater flexibility in
communication of mount parameters between userspace, the VFS and the
filesystem.

See Documentation/filesystems/mount_api.txt for more information.

Change-Id: I152e2eabcb3b44eba113eba0b9eb402cbe44b5ca
Signed-off-by: David Howells <dhowells@redhat.com>
cc: netdev@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
David Howells
2019-03-25 16:38:24 +00:00
committed by bengris32
parent 042de0b035
commit 0cbfe7d3a0
1 changed files with 10 additions and 6 deletions
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16
net/socket.c
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@@ -79,6 +79,7 @@
#include <linux/module.h>
#include <linux/highmem.h>
#include <linux/mount.h>
#include <linux/pseudo_fs.h>
#include <linux/security.h>
#include <linux/syscalls.h>
#include <linux/compat.h>
@@ -359,19 +360,22 @@ static const struct xattr_handler *sockfs_xattr_handlers[] = {
NULL
};
static struct dentry *sockfs_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
static int sockfs_init_fs_context(struct fs_context *fc)
{
return mount_pseudo_xattr(fs_type, &sockfs_ops,
sockfs_xattr_handlers,
&sockfs_dentry_operations, SOCKFS_MAGIC);
struct pseudo_fs_context *ctx = init_pseudo(fc, SOCKFS_MAGIC);
if (!ctx)
return -ENOMEM;
ctx->ops = &sockfs_ops;
ctx->dops = &sockfs_dentry_operations;
ctx->xattr = sockfs_xattr_handlers;
return 0;
}
static struct vfsmount *sock_mnt __read_mostly;
static struct file_system_type sock_fs_type = {
.name = "sockfs",
.mount = sockfs_mount,
.init_fs_context = sockfs_init_fs_context,
.kill_sb = kill_anon_super,
};