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Introduce path_put()

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* Add path_put() functions for releasing a reference to the dentry and
  vfsmount of a struct path in the right order

* Switch from path_release(nd) to path_put(&nd->path)

* Rename dput_path() to path_put_conditional()

[akpm@linux-foundation.org: fix cifs]
Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Cc: <linux-fsdevel@vger.kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Steven French <sfrench@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Blunck
2008-02-14 19:34:35 -08:00
committed by Linus Torvalds
parent 4ac9137858
commit 1d957f9bf8
41 changed files with 125 additions and 118 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
kernel/audit_tree.c
View File

@@ -550,7 +550,7 @@ void audit_trim_trees(void)
goto skip_it;
root_mnt = collect_mounts(nd.path.mnt, nd.path.dentry);
path_release(&nd);
path_put(&nd.path);
if (!root_mnt)
goto skip_it;
@@ -642,7 +642,7 @@ int audit_add_tree_rule(struct audit_krule *rule)
if (err)
goto Err;
mnt = collect_mounts(nd.path.mnt, nd.path.dentry);
path_release(&nd);
path_put(&nd.path);
if (!mnt) {
err = -ENOMEM;
goto Err;
@@ -702,7 +702,7 @@ int audit_tag_tree(char *old, char *new)
if (err)
return err;
tagged = collect_mounts(nd.path.mnt, nd.path.dentry);
path_release(&nd);
path_put(&nd.path);
if (!tagged)
return -ENOMEM;
@@ -713,7 +713,7 @@ int audit_tag_tree(char *old, char *new)
}
mnt = mntget(nd.path.mnt);
dentry = dget(nd.path.dentry);
path_release(&nd);
path_put(&nd.path);
if (dentry == tagged->mnt_root && dentry == mnt->mnt_root)
follow_up(&mnt, &dentry);
@@ -744,13 +744,13 @@ int audit_tag_tree(char *old, char *new)
spin_lock(&vfsmount_lock);
if (!is_under(mnt, dentry, &nd)) {
spin_unlock(&vfsmount_lock);
path_release(&nd);
path_put(&nd.path);
put_tree(tree);
mutex_lock(&audit_filter_mutex);
continue;
}
spin_unlock(&vfsmount_lock);
path_release(&nd);
path_put(&nd.path);
list_for_each_entry(p, &list, mnt_list) {
failed = tag_chunk(p->mnt_root->d_inode, tree);

4
kernel/auditfilter.c
View File

@@ -1161,11 +1161,11 @@ static int audit_get_nd(char *path, struct nameidata **ndp,
static void audit_put_nd(struct nameidata *ndp, struct nameidata *ndw)
{
if (ndp) {
path_release(ndp);
path_put(&ndp->path);
kfree(ndp);
}
if (ndw) {
path_release(ndw);
path_put(&ndw->path);
kfree(ndw);
}
}