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Commit 9a24ab57 authored by Greg Banks's avatar Greg Banks Committed by Linus Torvalds
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[PATCH] knfsd: add svc_get 



add svc_get() for those occasions when we need to temporarily bump up
svc_serv->sv_nrthreads as a pseudo refcount.

Signed-off-by: default avatarGreg Banks <gnb@melbourne.sgi.com>
Signed-off-by: default avatarNeil Brown <neilb@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 3262c816

fs/nfsd/nfssvc.c

+1 −1
Original line number Diff line number Diff line
@@ -200,7 +200,7 @@ int nfsd_create_serv(void) 
	int err = 0;

	lock_kernel();

	if (nfsd_serv) {

		nfsd_serv->sv_nrthreads++;

		svc_get(nfsd_serv);

		unlock_kernel();

		return 0;

	}

include/linux/sunrpc/svc.h

+11 −0
Original line number Diff line number Diff line
@@ -70,6 +70,17 @@ struct svc_serv { 
						 */

};



/*

 * We use sv_nrthreads as a reference count.  svc_destroy() drops

 * this refcount, so we need to bump it up around operations that

 * change the number of threads.  Horrible, but there it is.

 * Should be called with the BKL held.

 */

static inline void svc_get(struct svc_serv *serv)

{

	serv->sv_nrthreads++;

}



/*

 * Maximum payload size supported by a kernel RPC server.

 * This is use to determine the max number of pages nfsd is