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authorAl Viro <viro@zeniv.linux.org.uk>2019-09-03 19:05:48 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2019-09-05 14:34:22 -0400
commit533770cc0ae84890624dc129609f3d75855c8982 (patch)
treeefaf0d5823cd49d62baa600422d497db6fc0fa04 /fs
parent1dd9bc08cf1420d466dd8dcfcc233777e61ca5d2 (diff)
downloadlinux-533770cc0ae84890624dc129609f3d75855c8982.tar.bz2
new helper: get_tree_keyed()
For vfs_get_keyed_super users. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfsd/nfsctl.c3
-rw-r--r--fs/proc/root.c3
-rw-r--r--fs/super.c10
3 files changed, 12 insertions, 4 deletions
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 13c548733860..695223394985 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1386,8 +1386,7 @@ static int nfsd_fill_super(struct super_block *sb, struct fs_context *fc)
static int nfsd_fs_get_tree(struct fs_context *fc)
{
- fc->s_fs_info = get_net(fc->net_ns);
- return vfs_get_super(fc, vfs_get_keyed_super, nfsd_fill_super);
+ return get_tree_keyed(fc, nfsd_fill_super, get_net(fc->net_ns));
}
static void nfsd_fs_free_fc(struct fs_context *fc)
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 33f72d1b92cc..0b7c8dffc9ae 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -157,8 +157,7 @@ static int proc_get_tree(struct fs_context *fc)
{
struct proc_fs_context *ctx = fc->fs_private;
- fc->s_fs_info = ctx->pid_ns;
- return vfs_get_super(fc, vfs_get_keyed_super, proc_fill_super);
+ return get_tree_keyed(fc, proc_fill_super, ctx->pid_ns);
}
static void proc_fs_context_free(struct fs_context *fc)
diff --git a/fs/super.c b/fs/super.c
index 5960578a4076..0220def9baba 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1211,6 +1211,16 @@ int get_tree_single(struct fs_context *fc,
}
EXPORT_SYMBOL(get_tree_single);
+int get_tree_keyed(struct fs_context *fc,
+ int (*fill_super)(struct super_block *sb,
+ struct fs_context *fc),
+ void *key)
+{
+ fc->s_fs_info = key;
+ return vfs_get_super(fc, vfs_get_keyed_super, fill_super);
+}
+EXPORT_SYMBOL(get_tree_keyed);
+
#ifdef CONFIG_BLOCK
static int set_bdev_super(struct super_block *s, void *data)
{