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NLM: Don't hang forever on NLM unlock requests

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If the NLM daemon is killed on the NFS server, we can currently end up
hanging forever on an 'unlock' request, instead of aborting. Basically,
if the rpcbind request fails, or the server keeps returning garbage, we
really want to quit instead of retrying.

Tested-by: Vasily Averin <vvs@sw.ru>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
This commit is contained in:
Trond Myklebust
2011-05-31 15:15:34 -04:00
parent 9e3bd4e24e
commit 0b760113a3
4 changed files with 13 additions and 2 deletions
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3
include/linux/sunrpc/sched.h
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@@ -84,7 +84,8 @@ struct rpc_task {
#endif
unsigned char tk_priority : 2,/* Task priority */
tk_garb_retry : 2,
tk_cred_retry : 2;
tk_cred_retry : 2,
tk_rebind_retry : 2;
};
#define tk_xprt tk_client->cl_xprt