From 59ea0dff75365932014b736b58afd3b425e2a9b5 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 7 Jun 2013 01:20:27 -0400 Subject: it's still short a few helpers, but infrastructure should be OK now... Change-Id: I0adb8fe9c5029bad3ac52629003c3b78e9442936 Signed-off-by: Al Viro --- fs/dcache.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'fs/dcache.c') diff --git a/fs/dcache.c b/fs/dcache.c index 13ff1c648..3c1b77e92 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -3052,6 +3052,22 @@ rename_retry: goto again; } +void d_tmpfile(struct dentry *dentry, struct inode *inode) +{ + inode_dec_link_count(inode); + BUG_ON(dentry->d_name.name != dentry->d_iname || + !hlist_unhashed(&dentry->d_u.d_alias) || + !d_unlinked(dentry)); + spin_lock(&dentry->d_parent->d_lock); + spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED); + dentry->d_name.len = sprintf(dentry->d_iname, "#%llu", + (unsigned long long)inode->i_ino); + spin_unlock(&dentry->d_lock); + spin_unlock(&dentry->d_parent->d_lock); + d_instantiate(dentry, inode); +} +EXPORT_SYMBOL(d_tmpfile); + /** * find_inode_number - check for dentry with name * @dir: directory to check -- cgit v1.2.3