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authorDavid Howells <dhowells@redhat.com>2014-01-24 12:17:54 +0000
committerAl Viro <viro@zeniv.linux.org.uk>2014-04-01 23:19:18 -0400
commit8ffcb32e05239f0e53abfb0a1bc4eee4855b7fd2 (patch)
treed731abff96c06cdd6469ab24fea814ac03fbedd9 /fs
parent3ef120a459260b35175a64a418bdb115d80bf58f (diff)
downloadop-kernel-dev-8ffcb32e05239f0e53abfb0a1bc4eee4855b7fd2.zip
op-kernel-dev-8ffcb32e05239f0e53abfb0a1bc4eee4855b7fd2.tar.gz
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>
Diffstat (limited to 'fs')
-rw-r--r--fs/namespace.c20
1 files changed, 8 insertions, 12 deletions
diff --git a/fs/namespace.c b/fs/namespace.c
index 20e8696..182bc41 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)
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