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new helper: ihold()

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Clones an existing reference to inode; caller must already hold one.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2010-10-23 11:11:40 -04:00
commit 7de9c6ee3e
40 changed files with 57 additions and 49 deletions
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2
net/socket.c
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@ -377,7 +377,7 @@ static int sock_alloc_file(struct socket *sock, struct file **f, int flags)
&socket_file_ops);
if (unlikely(!file)) {
/* drop dentry, keep inode */
atomic_inc(&path.dentry->d_inode->i_count);
ihold(path.dentry->d_inode);
path_put(&path);
put_unused_fd(fd);
return -ENFILE;