Under some circumstances, put_rpccred() can end up allocating memory, so check the gfp_mask to prevent deadlocks. Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx> --- net/sunrpc/auth.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index 95afe79..03ff9f9 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -270,6 +270,8 @@ rpcauth_cache_shrinker(int nr_to_scan, gfp_t gfp_mask) LIST_HEAD(free); int res; + if ((gfp_mask & GFP_KERNEL) != GFP_KERNEL) + return -1; if (list_empty(&cred_unused)) return 0; spin_lock(&rpc_credcache_lock); -- 1.6.6.1 -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
