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Commit a4deb81b authored by Trond Myklebust's avatar Trond Myklebust
Browse files

SUNRPC: Don't call gss_delete_sec_context() from an rcu context 



Doing so may not be safe...

Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 905f8d16

net/sunrpc/auth_gss/auth_gss.c

+6 −3
Original line number Diff line number Diff line
@@ -736,9 +736,6 @@ gss_do_free_ctx(struct gss_cl_ctx *ctx) 
{

	dprintk("RPC:       gss_free_ctx\n");



	if (ctx->gc_gss_ctx)

		gss_delete_sec_context(&ctx->gc_gss_ctx);



	kfree(ctx->gc_wire_ctx.data);

	kfree(ctx);

}
@@ -753,7 +750,13 @@ gss_free_ctx_callback(struct rcu_head *head) 
static void

gss_free_ctx(struct gss_cl_ctx *ctx)

{

	struct gss_ctx *gc_gss_ctx;



	gc_gss_ctx = rcu_dereference(ctx->gc_gss_ctx);

	rcu_assign_pointer(ctx->gc_gss_ctx, NULL);

	call_rcu(&ctx->gc_rcu, gss_free_ctx_callback);

	if (gc_gss_ctx)

		gss_delete_sec_context(&gc_gss_ctx);

}



static void