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authorAl Viro <viro@zeniv.linux.org.uk>2019-05-22 21:23:39 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2019-07-04 22:01:58 -0400
commitc23a0bbab30cc1714b6b1d6a1c153a5ccab3f0d8 (patch)
treeb58d6ed34a26200796664d1dca3c10629cfdb8ea
parent2ac295d4f0c095310addbcb03d91d2a4c9f7d435 (diff)
downloadlinux-c23a0bbab30cc1714b6b1d6a1c153a5ccab3f0d8.tar.bz2
convenience helper: get_tree_single()
counterpart of mount_single(); switch fusectl to it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/fuse/control.c2
-rw-r--r--fs/super.c8
-rw-r--r--include/linux/fs_context.h3
3 files changed, 12 insertions, 1 deletions
diff --git a/fs/fuse/control.c b/fs/fuse/control.c
index 14ce1e47f980..c23f6f243ad4 100644
--- a/fs/fuse/control.c
+++ b/fs/fuse/control.c
@@ -346,7 +346,7 @@ static int fuse_ctl_fill_super(struct super_block *sb, struct fs_context *fctx)
static int fuse_ctl_get_tree(struct fs_context *fc)
{
- return vfs_get_super(fc, vfs_get_single_super, fuse_ctl_fill_super);
+ return get_tree_single(fc, fuse_ctl_fill_super);
}
static const struct fs_context_operations fuse_ctl_context_ops = {
diff --git a/fs/super.c b/fs/super.c
index 3318225b0878..113c58f19425 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1206,6 +1206,14 @@ int get_tree_nodev(struct fs_context *fc,
}
EXPORT_SYMBOL(get_tree_nodev);
+int get_tree_single(struct fs_context *fc,
+ int (*fill_super)(struct super_block *sb,
+ struct fs_context *fc))
+{
+ return vfs_get_super(fc, vfs_get_single_super, fill_super);
+}
+EXPORT_SYMBOL(get_tree_single);
+
#ifdef CONFIG_BLOCK
static int set_bdev_super(struct super_block *s, void *data)
{
diff --git a/include/linux/fs_context.h b/include/linux/fs_context.h
index 38b1ec918a4e..1775969e000d 100644
--- a/include/linux/fs_context.h
+++ b/include/linux/fs_context.h
@@ -154,6 +154,9 @@ extern int vfs_get_super(struct fs_context *fc,
extern int get_tree_nodev(struct fs_context *fc,
int (*fill_super)(struct super_block *sb,
struct fs_context *fc));
+extern int get_tree_single(struct fs_context *fc,
+ int (*fill_super)(struct super_block *sb,
+ struct fs_context *fc));
extern const struct file_operations fscontext_fops;