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path: root/fs/kernfs/mount.c
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Diffstat (limited to 'fs/kernfs/mount.c')
-rw-r--r--fs/kernfs/mount.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/fs/kernfs/mount.c b/fs/kernfs/mount.c
index f2f909d09f52..cfa79715fc1a 100644
--- a/fs/kernfs/mount.c
+++ b/fs/kernfs/mount.c
@@ -236,6 +236,7 @@ struct dentry *kernfs_node_dentry(struct kernfs_node *kn,
static int kernfs_fill_super(struct super_block *sb, struct kernfs_fs_context *kfc)
{
struct kernfs_super_info *info = kernfs_info(sb);
+ struct kernfs_root *kf_root = kfc->root;
struct inode *inode;
struct dentry *root;
@@ -255,9 +256,9 @@ static int kernfs_fill_super(struct super_block *sb, struct kernfs_fs_context *k
sb->s_shrink.seeks = 0;
/* get root inode, initialize and unlock it */
- down_read(&kernfs_rwsem);
+ down_read(&kf_root->kernfs_rwsem);
inode = kernfs_get_inode(sb, info->root->kn);
- up_read(&kernfs_rwsem);
+ up_read(&kf_root->kernfs_rwsem);
if (!inode) {
pr_debug("kernfs: could not get root inode\n");
return -ENOMEM;
@@ -334,6 +335,7 @@ int kernfs_get_tree(struct fs_context *fc)
if (!sb->s_root) {
struct kernfs_super_info *info = kernfs_info(sb);
+ struct kernfs_root *root = kfc->root;
kfc->new_sb_created = true;
@@ -344,9 +346,9 @@ int kernfs_get_tree(struct fs_context *fc)
}
sb->s_flags |= SB_ACTIVE;
- down_write(&kernfs_rwsem);
+ down_write(&root->kernfs_rwsem);
list_add(&info->node, &info->root->supers);
- up_write(&kernfs_rwsem);
+ up_write(&root->kernfs_rwsem);
}
fc->root = dget(sb->s_root);
@@ -371,10 +373,11 @@ void kernfs_free_fs_context(struct fs_context *fc)
void kernfs_kill_sb(struct super_block *sb)
{
struct kernfs_super_info *info = kernfs_info(sb);
+ struct kernfs_root *root = info->root;
- down_write(&kernfs_rwsem);
+ down_write(&root->kernfs_rwsem);
list_del(&info->node);
- up_write(&kernfs_rwsem);
+ up_write(&root->kernfs_rwsem);
/*
* Remove the superblock from fs_supers/s_instances