Commit 82159876 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Thomas Gleixner
Browse files

x86/intel_rdt: Switch to bitmap_zalloc() 



Switch to bitmap_zalloc() to show clearly what is allocated. Besides that
it returns a pointer of bitmap type instead of opaque void *.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Acked-by: default avatarFenghua Yu <fenghua.yu@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lkml.kernel.org/r/20180830115039.63430-1-andriy.shevchenko@linux.intel.com
parent 53ed74af

arch/x86/kernel/cpu/intel_rdt.c

+4 −6
Original line number Diff line number Diff line
@@ -485,9 +485,7 @@ static int domain_setup_mon_state(struct rdt_resource *r, struct rdt_domain *d) 
	size_t tsize;



	if (is_llc_occupancy_enabled()) {

		d->rmid_busy_llc = kcalloc(BITS_TO_LONGS(r->num_rmid),

					   sizeof(unsigned long),

					   GFP_KERNEL);

		d->rmid_busy_llc = bitmap_zalloc(r->num_rmid, GFP_KERNEL);

		if (!d->rmid_busy_llc)

			return -ENOMEM;

		INIT_DELAYED_WORK(&d->cqm_limbo, cqm_handle_limbo);
@@ -496,7 +494,7 @@ static int domain_setup_mon_state(struct rdt_resource *r, struct rdt_domain *d) 
		tsize = sizeof(*d->mbm_total);

		d->mbm_total = kcalloc(r->num_rmid, tsize, GFP_KERNEL);

		if (!d->mbm_total) {

			kfree(d->rmid_busy_llc);

			bitmap_free(d->rmid_busy_llc);

			return -ENOMEM;

		}

	}
@@ -504,7 +502,7 @@ static int domain_setup_mon_state(struct rdt_resource *r, struct rdt_domain *d) 
		tsize = sizeof(*d->mbm_local);

		d->mbm_local = kcalloc(r->num_rmid, tsize, GFP_KERNEL);

		if (!d->mbm_local) {

			kfree(d->rmid_busy_llc);

			bitmap_free(d->rmid_busy_llc);

			kfree(d->mbm_total);

			return -ENOMEM;

		}
@@ -612,7 +610,7 @@ static void domain_remove_cpu(int cpu, struct rdt_resource *r) 


		kfree(d->ctrl_val);

		kfree(d->mbps_val);

		kfree(d->rmid_busy_llc);

		bitmap_free(d->rmid_busy_llc);

		kfree(d->mbm_total);

		kfree(d->mbm_local);

		kfree(d);

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