[dpdk-dev] [PATCH 02/25] bus/fslmc: use new memory locking API

Anatoly Burakov anatoly.burakov at intel.com
Wed May 29 18:30:48 CEST 2019


Replace usages of direct access to shared memory config with
calls to the new API.

Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
---
 drivers/bus/fslmc/fslmc_vfio.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/bus/fslmc/fslmc_vfio.c b/drivers/bus/fslmc/fslmc_vfio.c
index 1aae56fa9..bf9911f56 100644
--- a/drivers/bus/fslmc/fslmc_vfio.c
+++ b/drivers/bus/fslmc/fslmc_vfio.c
@@ -347,14 +347,12 @@ fslmc_dmamap_seg(const struct rte_memseg_list *msl __rte_unused,
 int rte_fslmc_vfio_dmamap(void)
 {
 	int i = 0, ret;
-	struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
-	rte_rwlock_t *mem_lock = &mcfg->memory_hotplug_lock;
 
 	/* Lock before parsing and registering callback to memory subsystem */
-	rte_rwlock_read_lock(mem_lock);
+	rte_eal_mcfg_mem_read_lock();
 
 	if (rte_memseg_walk(fslmc_dmamap_seg, &i) < 0) {
-		rte_rwlock_read_unlock(mem_lock);
+		rte_eal_mcfg_mem_read_unlock();
 		return -1;
 	}
 
@@ -378,7 +376,7 @@ int rte_fslmc_vfio_dmamap(void)
 	/* Existing segments have been mapped and memory callback for hotplug
 	 * has been installed.
 	 */
-	rte_rwlock_read_unlock(mem_lock);
+	rte_eal_mcfg_mem_read_unlock();
 
 	return 0;
 }
-- 
2.17.1


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