[PATCH 10/22] unix_find_other() elevate write count for touch_atime()

[Dave Hansen]

Signed-off-by: Dave Hansen <[EMAIL PROTECTED]>
---

 lxc-dave/net/unix/af_unix.c |   16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff -puN 
net/unix/af_unix.c~12-24-unix-find-other-elevate-write-count-for-touch-atime 
net/unix/af_unix.c
--- 
lxc/net/unix/af_unix.c~12-24-unix-find-other-elevate-write-count-for-touch-atime
    2007-02-09 14:26:52.000000000 -0800
+++ lxc-dave/net/unix/af_unix.c 2007-02-09 14:26:52.000000000 -0800
@@ -703,21 +703,27 @@ static struct sock *unix_find_other(stru
                err = path_lookup(sunname->sun_path, LOOKUP_FOLLOW, &nd);
                if (err)
                        goto fail;
+
+               err = mnt_want_write(nd.mnt);
+               if (err)
+                       goto put_path_fail;
+
                err = vfs_permission(&nd, MAY_WRITE);
                if (err)
-                       goto put_fail;
+                       goto mnt_drop_write_fail;
 
                err = -ECONNREFUSED;
                if (!S_ISSOCK(nd.dentry->d_inode->i_mode))
-                       goto put_fail;
+                       goto mnt_drop_write_fail;
                u=unix_find_socket_byinode(nd.dentry->d_inode);
                if (!u)
-                       goto put_fail;
+                       goto mnt_drop_write_fail;
 
                if (u->sk_type == type)
                        touch_atime(nd.mnt, nd.dentry);
 
                path_release(&nd);
+               mnt_drop_write(nd.mnt);
 
                err=-EPROTOTYPE;
                if (u->sk_type != type) {
@@ -737,7 +743,9 @@ static struct sock *unix_find_other(stru
        }
        return u;
 
-put_fail:
+mnt_drop_write_fail:
+       mnt_drop_write(nd.mnt);
+put_path_fail:
        path_release(&nd);
 fail:
        *error=err;
_
-
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