NFSv4: Ensure that we track the NFSv4 lock state in read/write requests.
This patch fixes bugzilla entry 14501:
https://bugzilla.kernel.org/show_bug.cgi?id=14501
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 03df228..5eccea1 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -689,7 +689,9 @@
req = nfs_page_find_request(page);
if (req == NULL)
return 0;
- do_flush = req->wb_page != page || req->wb_context != ctx;
+ do_flush = req->wb_page != page || req->wb_context != ctx ||
+ req->wb_lock_context->lockowner != current->files ||
+ req->wb_lock_context->pid != current->tgid;
nfs_release_request(req);
if (!do_flush)
return 0;
@@ -813,6 +815,7 @@
data->args.pages = data->pagevec;
data->args.count = count;
data->args.context = get_nfs_open_context(req->wb_context);
+ data->args.lock_context = req->wb_lock_context;
data->args.stable = NFS_UNSTABLE;
if (how & FLUSH_STABLE) {
data->args.stable = NFS_DATA_SYNC;