From 64ffd86cf9c1b5d7febcb9dfbd415d886fa76451 Mon Sep 17 00:00:00 2001 From: Jubin John Date: Mon, 26 Oct 2015 10:28:47 -0400 Subject: [PATCH] staging/rdma/hfi1: Add unit # to verbs txreq cache name The name used to create the verbs txreq cache was not qualified with the unit number. This causes a panic when destroying the cache on a dual HFI systems. Create a unique name with the unit number with this patch Reviewed-by: Mike Marciniszyn Signed-off-by: Jubin John Signed-off-by: Ira Weiny Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rdma/hfi1/verbs.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/staging/rdma/hfi1/verbs.c b/drivers/staging/rdma/hfi1/verbs.c index d8f6347decd6..a13a2b135365 100644 --- a/drivers/staging/rdma/hfi1/verbs.c +++ b/drivers/staging/rdma/hfi1/verbs.c @@ -129,6 +129,9 @@ static void verbs_sdma_complete( int status, int drained); +/* Length of buffer to create verbs txreq cache name */ +#define TXREQ_NAME_LEN 24 + /* * Note that it is OK to post send work requests in the SQE and ERR * states; hfi1_do_send() will process them and generate error @@ -1905,6 +1908,7 @@ int hfi1_register_ib_device(struct hfi1_devdata *dd) int ret; size_t lcpysz = IB_DEVICE_NAME_MAX; u16 descq_cnt; + char buf[TXREQ_NAME_LEN]; ret = hfi1_qp_init(dev); if (ret) @@ -1958,8 +1962,9 @@ int hfi1_register_ib_device(struct hfi1_devdata *dd) descq_cnt = sdma_get_descq_cnt(); + snprintf(buf, sizeof(buf), "hfi1_%u_vtxreq_cache", dd->unit); /* SLAB_HWCACHE_ALIGN for AHG */ - dev->verbs_txreq_cache = kmem_cache_create("hfi1_vtxreq_cache", + dev->verbs_txreq_cache = kmem_cache_create(buf, sizeof(struct verbs_txreq), 0, SLAB_HWCACHE_ALIGN, verbs_txreq_kmem_cache_ctor); -- 2.20.1