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lockd: get rid of reference-counted NSM RPC clients

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Currently we have reference-counted per-net NSM RPC client
which created on the first monitor request and destroyed
after the last unmonitor request. It's needed because
RPC client need to know 'utsname()->nodename', but utsname()
might be NULL when nsm_unmonitor() called.

So instead of holding the rpc client we could just save nodename
in struct nlm_host and pass it to the rpc_create().
Thus ther is no need in keeping rpc client until last
unmonitor request. We could create separate RPC clients
for each monitor/unmonitor requests.

Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Andrey Ryabinin 2015-10-07 14:39:55 +03:00 • committed by J. Bruce Fields
parent 226453d8cf
commit 0d0f4aab4e
5 changed files with 17 additions and 78 deletions
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1
include/linux/lockd/lockd.h
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@ -68,6 +68,7 @@ struct nlm_host {
struct nsm_handle *h_nsmhandle; /* NSM status handle */
char *h_addrbuf; /* address eyecatcher */
struct net *net; /* host net */
char nodename[UNX_MAXNODENAME + 1];
};
/*