diff options
| author | David Howells <dhowells@redhat.com> | 2014-01-24 12:17:54 +0000 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-04-01 23:19:18 -0400 |
| commit | 8ffcb32e05239f0e53abfb0a1bc4eee4855b7fd2 (patch) | |
| tree | d731abff96c06cdd6469ab24fea814ac03fbedd9 | |
| parent | 3ef120a459260b35175a64a418bdb115d80bf58f (diff) | |
| download | lwn-8ffcb32e05239f0e53abfb0a1bc4eee4855b7fd2.tar.gz lwn-8ffcb32e05239f0e53abfb0a1bc4eee4855b7fd2.zip | |
VFS: Make delayed_free() call free_vfsmnt()
Make delayed_free() call free_vfsmnt() so that we don't have two functions
doing the same job. This requires the calls to mnt_free_id() in free_vfsmnt()
to be moved into the callers of that function.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/namespace.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 20e8696c31a7..182bc41cd887 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -568,13 +568,17 @@ int sb_prepare_remount_readonly(struct super_block *sb) static void free_vfsmnt(struct mount *mnt) { kfree(mnt->mnt_devname); - mnt_free_id(mnt); #ifdef CONFIG_SMP free_percpu(mnt->mnt_pcp); #endif kmem_cache_free(mnt_cache, mnt); } +static void delayed_free_vfsmnt(struct rcu_head *head) +{ + free_vfsmnt(container_of(head, struct mount, mnt_rcu)); +} + /* call under rcu_read_lock */ bool legitimize_mnt(struct vfsmount *bastard, unsigned seq) { @@ -846,6 +850,7 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void root = mount_fs(type, flags, name, data); if (IS_ERR(root)) { + mnt_free_id(mnt); free_vfsmnt(mnt); return ERR_CAST(root); } @@ -926,20 +931,11 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root, return mnt; out_free: + mnt_free_id(mnt); free_vfsmnt(mnt); return ERR_PTR(err); } -static void delayed_free(struct rcu_head *head) -{ - struct mount *mnt = container_of(head, struct mount, mnt_rcu); - kfree(mnt->mnt_devname); -#ifdef CONFIG_SMP - free_percpu(mnt->mnt_pcp); -#endif - kmem_cache_free(mnt_cache, mnt); -} - static void mntput_no_expire(struct mount *mnt) { put_again: @@ -989,7 +985,7 @@ put_again: dput(mnt->mnt.mnt_root); deactivate_super(mnt->mnt.mnt_sb); mnt_free_id(mnt); - call_rcu(&mnt->mnt_rcu, delayed_free); + call_rcu(&mnt->mnt_rcu, delayed_free_vfsmnt); } void mntput(struct vfsmount *mnt) |