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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-03-02 20:09:08 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-03-02 20:09:08 -0800
commit13df7977431e3b906a23bb75f29e0f40a8d73f87 (patch)
treebc2c78c3b816a65f90c31cccebdc15b38352c045 /fs/kernfs/mount.c
parent6d8b3e1ad3d3815d9c87b8553493301e243af76a (diff)
parent0414855fdc4a40da05221fc6062cccbc0c30f169 (diff)
Merge 3.14-rc5 into driver-core-next
We want the fixes in here.
Diffstat (limited to 'fs/kernfs/mount.c')
-rw-r--r--fs/kernfs/mount.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/kernfs/mount.c b/fs/kernfs/mount.c
index 405279b5517b..6a5f04ac8704 100644
--- a/fs/kernfs/mount.c
+++ b/fs/kernfs/mount.c
@@ -131,6 +131,7 @@ const void *kernfs_super_ns(struct super_block *sb)
* @fs_type: file_system_type of the fs being mounted
* @flags: mount flags specified for the mount
* @root: kernfs_root of the hierarchy being mounted
+ * @new_sb_created: tell the caller if we allocated a new superblock
* @ns: optional namespace tag of the mount
*
* This is to be called from each kernfs user's file_system_type->mount()
@@ -141,7 +142,8 @@ const void *kernfs_super_ns(struct super_block *sb)
* The return value can be passed to the vfs layer verbatim.
*/
struct dentry *kernfs_mount_ns(struct file_system_type *fs_type, int flags,
- struct kernfs_root *root, const void *ns)
+ struct kernfs_root *root, bool *new_sb_created,
+ const void *ns)
{
struct super_block *sb;
struct kernfs_super_info *info;
@@ -159,6 +161,10 @@ struct dentry *kernfs_mount_ns(struct file_system_type *fs_type, int flags,
kfree(info);
if (IS_ERR(sb))
return ERR_CAST(sb);
+
+ if (new_sb_created)
+ *new_sb_created = !sb->s_root;
+
if (!sb->s_root) {
error = kernfs_fill_super(sb);
if (error) {