Commit 3505d3a6 authored by Wojciech Malikowski's avatar Wojciech Malikowski Committed by Tomasz Zawadzki
Browse files

lib/ftl: Set l2p table initial state with memset() 



This patch improve FTL initialization time.
For 16TB volume it reduces init/restore time
by about 30 seconds.

Change-Id: I76463c5447b983eb9428c0317933d06c40b2974e
Signed-off-by: default avatarWojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/546


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarMaciej Szczepaniak <maciej.szczepaniak@intel.com>
Reviewed-by: default avatarKonrad Sztyber <konrad.sztyber@intel.com>
parent a6a040eb

lib/ftl/ftl_init.c

+1 −4
Original line number Diff line number Diff line
@@ -555,7 +555,6 @@ static int 
ftl_dev_l2p_alloc(struct spdk_ftl_dev *dev)

{

	size_t addr_size;

	uint64_t i;



	if (dev->num_lbas == 0) {

		SPDK_DEBUGLOG(SPDK_LOG_FTL_INIT, "Invalid l2p table size\n");
@@ -574,9 +573,7 @@ ftl_dev_l2p_alloc(struct spdk_ftl_dev *dev) 
		return -1;

	}



	for (i = 0; i < dev->num_lbas; ++i) {

		ftl_l2p_set(dev, i, ftl_to_addr(FTL_ADDR_INVALID));

	}

	memset(dev->l2p, FTL_ADDR_INVALID, dev->num_lbas * addr_size);



	return 0;

}