From e0d4ed71ca0344494722a041780f004d2bcf0f11 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 26 Sep 2014 16:02:50 +0200 Subject: pnfs/blocklayout: serialize GETDEVICEINFO calls The rpc_pipefs code isn't thread safe, leading to occasional use after frees when running xfstests generic/241 (dbench). Signed-off-by: Christoph Hellwig Link: http://lkml.kernel.org/r/1411740170-18611-2-git-send-email-hch@lst.de Cc: stable@vger.kernel.org # 3.17.x Signed-off-by: Trond Myklebust --- fs/nfs/netns.h | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/nfs/netns.h') diff --git a/fs/nfs/netns.h b/fs/nfs/netns.h index ef221fb8a183..f0e06e4acbef 100644 --- a/fs/nfs/netns.h +++ b/fs/nfs/netns.h @@ -19,6 +19,7 @@ struct nfs_net { struct rpc_pipe *bl_device_pipe; struct bl_dev_msg bl_mount_reply; wait_queue_head_t bl_wq; + struct mutex bl_mutex; struct list_head nfs_client_list; struct list_head nfs_volume_list; #if IS_ENABLED(CONFIG_NFS_V4) -- cgit v1.2.3