On Tue, 2014-04-15 at 17:22 +0800, Kinglong Mee wrote:
> 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@xxxxxxxxx>
> ---
> fs/nfs/getroot.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
> index 66984a9..b94f804 100644
> --- a/fs/nfs/getroot.c
> +++ b/fs/nfs/getroot.c
> @@ -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;
> }
Applied. Thanks!
--
Trond Myklebust
Linux NFS client maintainer, PrimaryData
trond.myklebust@xxxxxxxxxxxxxxx
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