Commit 4dfc7fdb authored Apr 15, 2014 by Kinglong Mee Committed by Trond Myklebust Apr 15, 2014

NFS: Fix memroy leak for double mounts



When double mounting same nfs filesystem, the devname saved in d_fsdata
will be lost.The second mount should not change the devname that
be saved in d_fsdata.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

parent c9eaa447

fs/nfs/getroot.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -120,7 +120,8 @@ struct dentry nfs_get_root(struct super_block sb, struct nfs_fh *mntfh,

		security_d_instantiate(ret, inode);
		spin_lock(&ret->d_lock);
		if (IS_ROOT(ret) && !(ret->d_flags & DCACHE_NFSFS_RENAMED)) {
		if (IS_ROOT(ret) && !ret->d_fsdata &&
		!(ret->d_flags & DCACHE_NFSFS_RENAMED)) {
		ret->d_fsdata = name;
		name = NULL;
		}