Merge tag 'for-linus-5.1a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from Juergen Gross:
 "xen fixes and features:

   - remove fallback code for very old Xen hypervisors

   - three patches for fixing Xen dom0 boot regressions

   - an old patch for Xen PCI passthrough which was never applied for
     unknown reasons

   - some more minor fixes and cleanup patches"

* tag 'for-linus-5.1a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: fix dom0 boot on huge systems
  xen, cpu_hotplug: Prevent an out of bounds access
  xen: remove pre-xen3 fallback handlers
  xen/ACPI: Switch to bitmap_zalloc()
  x86/xen: dont add memory above max allowed allocation
  x86: respect memory size limiting via mem= parameter
  xen/gntdev: Check and release imported dma-bufs on close
  xen/gntdev: Do not destroy context while dma-bufs are in use
  xen/pciback: Don't disable PCI_COMMAND on PCI device reset.
  xen-scsiback: mark expected switch fall-through
  xen: mark expected switch fall-through

1 files changed, 11 insertions, 11 deletions

diff --git a/drivers/xen/xen-acpi-processor.c b/drivers/xen/xen-acpi-processor.c
index fbb9137c7d02..98e35644fda7 100644
--- a/drivers/xen/xen-acpi-processor.c
+++ b/drivers/xen/xen-acpi-processor.c
@@ -410,21 +410,21 @@ static int check_acpi_ids(struct acpi_processor *pr_backup)
 	/* All online CPUs have been processed at this stage. Now verify
 	 * whether in fact "online CPUs" == physical CPUs.
 	 */
-	acpi_id_present = kcalloc(BITS_TO_LONGS(nr_acpi_bits), sizeof(unsigned long), GFP_KERNEL);
+	acpi_id_present = bitmap_zalloc(nr_acpi_bits, GFP_KERNEL);
 	if (!acpi_id_present)
 		return -ENOMEM;
 
-	acpi_id_cst_present = kcalloc(BITS_TO_LONGS(nr_acpi_bits), sizeof(unsigned long), GFP_KERNEL);
+	acpi_id_cst_present = bitmap_zalloc(nr_acpi_bits, GFP_KERNEL);
 	if (!acpi_id_cst_present) {
-		kfree(acpi_id_present);
+		bitmap_free(acpi_id_present);
 		return -ENOMEM;
 	}
 
 	acpi_psd = kcalloc(nr_acpi_bits, sizeof(struct acpi_psd_package),
 			   GFP_KERNEL);
 	if (!acpi_psd) {
-		kfree(acpi_id_present);
-		kfree(acpi_id_cst_present);
+		bitmap_free(acpi_id_present);
+		bitmap_free(acpi_id_cst_present);
 		return -ENOMEM;
 	}
 
@@ -533,14 +533,14 @@ static int __init xen_acpi_processor_init(void)
 		return -ENODEV;
 
 	nr_acpi_bits = get_max_acpi_id() + 1;
-	acpi_ids_done = kcalloc(BITS_TO_LONGS(nr_acpi_bits), sizeof(unsigned long), GFP_KERNEL);
+	acpi_ids_done = bitmap_zalloc(nr_acpi_bits, GFP_KERNEL);
 	if (!acpi_ids_done)
 		return -ENOMEM;
 
 	acpi_perf_data = alloc_percpu(struct acpi_processor_performance);
 	if (!acpi_perf_data) {
 		pr_debug("Memory allocation error for acpi_perf_data\n");
-		kfree(acpi_ids_done);
+		bitmap_free(acpi_ids_done);
 		return -ENOMEM;
 	}
 	for_each_possible_cpu(i) {
@@ -584,7 +584,7 @@ err_unregister:
 err_out:
 	/* Freeing a NULL pointer is OK: alloc_percpu zeroes. */
 	free_acpi_perf_data();
-	kfree(acpi_ids_done);
+	bitmap_free(acpi_ids_done);
 	return rc;
 }
 static void __exit xen_acpi_processor_exit(void)
@@ -592,9 +592,9 @@ static void __exit xen_acpi_processor_exit(void)
 	int i;
 
 	unregister_syscore_ops(&xap_syscore_ops);
-	kfree(acpi_ids_done);
-	kfree(acpi_id_present);
-	kfree(acpi_id_cst_present);
+	bitmap_free(acpi_ids_done);
+	bitmap_free(acpi_id_present);
+	bitmap_free(acpi_id_cst_present);
 	kfree(acpi_psd);
 	for_each_possible_cpu(i)
 		acpi_processor_unregister_performance(i);