For 3.12 stable. Upstream ref: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/fs/gfs2/inode.c?id=ea0341e071527d5cec350917b01ab901af09d758
>From ea0341e071527d5cec350917b01ab901af09d758 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse <[email protected]> Date: Thu, 21 Nov 2013 18:47:57 +0000 Subject: GFS2: Fix ref count bug relating to atomic_open In the case that atomic_open calls finish_no_open() with the dentry that was supplied to gfs2_atomic_open() an extra reference count is required. This patch fixes that issue preventing a bug trap triggering at umount time. Signed-off-by: Steven Whitehouse <[email protected]> diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index 1615df1..7119504 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -1171,8 +1171,11 @@ static int gfs2_atomic_open(struct inode *dir, struct dentry *dentry, if (d != NULL) dentry = d; if (dentry->d_inode) { - if (!(*opened & FILE_OPENED)) + if (!(*opened & FILE_OPENED)) { + if (d == NULL) + dget(dentry); return finish_no_open(file, dentry); + } dput(d); return 0; } -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
