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authorTrond Myklebust <trond.myklebust@primarydata.com>2015-03-09 14:01:25 -0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-03-27 12:32:24 -0400
commit4e59080397faadee59d39ffa2116dc8607adc9c9 (patch)
treecbf455eb14536ccab378215e85257ebfa9c5790a /fs/nfs/nfs4proc.c
parentfb1458f4578c8dc78dc124de2a58950a6d4e3492 (diff)
NFSv4.1: Allow getdeviceinfo to return notification info back to caller
We are only allowed to cache deviceinfo if the server supports notifications and actually promises to call us back when changes occur. Right now, we request those notifications, but then we don't check the server's reply. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r--fs/nfs/nfs4proc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 627f37c44456..ba8b2b5e98a1 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7944,6 +7944,8 @@ _nfs4_proc_getdeviceinfo(struct nfs_server *server,
{
struct nfs4_getdeviceinfo_args args = {
.pdev = pdev,
+ .notify_types = NOTIFY_DEVICEID4_CHANGE |
+ NOTIFY_DEVICEID4_DELETE,
};
struct nfs4_getdeviceinfo_res res = {
.pdev = pdev,
@@ -7958,6 +7960,9 @@ _nfs4_proc_getdeviceinfo(struct nfs_server *server,
dprintk("--> %s\n", __func__);
status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
+ if (res.notification & ~args.notify_types)
+ dprintk("%s: unsupported notification\n", __func__);
+
dprintk("<-- %s status=%d\n", __func__, status);
return status;