Merge commit 'v3.3-rc1' into stable/for-linus-fixes-3.3

* commit 'v3.3-rc1': (9775 commits)
  Linux 3.3-rc1
  x86, syscall: Need __ARCH_WANT_SYS_IPC for 32 bits
  qnx4: don't leak ->BitMap on late failure exits
  qnx4: reduce the insane nesting in qnx4_checkroot()
  qnx4: di_fname is an array, for crying out loud...
  KEYS: Permit key_serial() to be called with a const key pointer
  keys: fix user_defined key sparse messages
  ima: fix cred sparse warning
  uml: fix compile for x86-64
  MPILIB: Add a missing ENOMEM check
  tpm: fix (ACPI S3) suspend regression
  nvme: fix merge error due to change of 'make_request_fn' fn type
  xen: using EXPORT_SYMBOL requires including export.h
  gpio: tps65910: Use correct offset for gpio initialization
  acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec
  intel_idle: Split up and provide per CPU initialization func
  ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2
  tg3: Fix single-vector MSI-X code
  openvswitch: Fix multipart datapath dumps.
  ipv6: fix per device IP snmp counters
  ...

1 files changed, 27 insertions, 39 deletions

diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 056e65d5012..62d61e9976e 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -19,6 +19,7 @@
 #include <linux/acpi.h>
 #include <linux/firmware-map.h>
 #include <linux/memblock.h>
+#include <linux/sort.h>
 
 #include <asm/e820.h>
 #include <asm/proto.h>
@@ -227,22 +228,38 @@ void __init e820_print_map(char *who)
  *	   ____________________33__
  *	   ______________________4_
  */
+struct change_member {
+	struct e820entry *pbios; /* pointer to original bios entry */
+	unsigned long long addr; /* address for this change point */
+};
+
+static int __init cpcompare(const void *a, const void *b)
+{
+	struct change_member * const *app = a, * const *bpp = b;
+	const struct change_member *ap = *app, *bp = *bpp;
+
+	/*
+	 * Inputs are pointers to two elements of change_point[].  If their
+	 * addresses are unequal, their difference dominates.  If the addresses
+	 * are equal, then consider one that represents the end of its region
+	 * to be greater than one that does not.
+	 */
+	if (ap->addr != bp->addr)
+		return ap->addr > bp->addr ? 1 : -1;
+
+	return (ap->addr != ap->pbios->addr) - (bp->addr != bp->pbios->addr);
+}
 
 int __init sanitize_e820_map(struct e820entry *biosmap, int max_nr_map,
 			     u32 *pnr_map)
 {
-	struct change_member {
-		struct e820entry *pbios; /* pointer to original bios entry */
-		unsigned long long addr; /* address for this change point */
-	};
 	static struct change_member change_point_list[2*E820_X_MAX] __initdata;
 	static struct change_member *change_point[2*E820_X_MAX] __initdata;
 	static struct e820entry *overlap_list[E820_X_MAX] __initdata;
 	static struct e820entry new_bios[E820_X_MAX] __initdata;
-	struct change_member *change_tmp;
 	unsigned long current_type, last_type;
 	unsigned long long last_addr;
-	int chgidx, still_changing;
+	int chgidx;
 	int overlap_entries;
 	int new_bios_entry;
 	int old_nr, new_nr, chg_nr;
@@ -279,35 +296,7 @@ int __init sanitize_e820_map(struct e820entry *biosmap, int max_nr_map,
 	chg_nr = chgidx;
 
 	/* sort change-point list by memory addresses (low -> high) */
-	still_changing = 1;
-	while (still_changing)	{
-		still_changing = 0;
-		for (i = 1; i < chg_nr; i++)  {
-			unsigned long long curaddr, lastaddr;
-			unsigned long long curpbaddr, lastpbaddr;
-
-			curaddr = change_point[i]->addr;
-			lastaddr = change_point[i - 1]->addr;
-			curpbaddr = change_point[i]->pbios->addr;
-			lastpbaddr = change_point[i - 1]->pbios->addr;
-
-			/*
-			 * swap entries, when:
-			 *
-			 * curaddr > lastaddr or
-			 * curaddr == lastaddr and curaddr == curpbaddr and
-			 * lastaddr != lastpbaddr
-			 */
-			if (curaddr < lastaddr ||
-			    (curaddr == lastaddr && curaddr == curpbaddr &&
-			     lastaddr != lastpbaddr)) {
-				change_tmp = change_point[i];
-				change_point[i] = change_point[i-1];
-				change_point[i-1] = change_tmp;
-				still_changing = 1;
-			}
-		}
-	}
+	sort(change_point, chg_nr, sizeof *change_point, cpcompare, NULL);
 
 	/* create a new bios memory map, removing overlaps */
 	overlap_entries = 0;	 /* number of entries in the overlap table */
@@ -714,7 +703,7 @@ void __init e820_mark_nosave_regions(unsigned long limit_pfn)
 }
 #endif
 
-#ifdef CONFIG_HIBERNATION
+#ifdef CONFIG_ACPI
 /**
  * Mark ACPI NVS memory region, so that we can save/restore it during
  * hibernation and the subsequent resume.
@@ -727,7 +716,7 @@ static int __init e820_mark_nvs_memory(void)
 		struct e820entry *ei = &e820.map[i];
 
 		if (ei->type == E820_NVS)
-			suspend_nvs_register(ei->addr, ei->size);
+			acpi_nvs_register(ei->addr, ei->size);
 	}
 
 	return 0;
@@ -1072,7 +1061,7 @@ void __init memblock_x86_fill(void)
 	 * We are safe to enable resizing, beause memblock_x86_fill()
 	 * is rather later for x86
 	 */
-	memblock_can_resize = 1;
+	memblock_allow_resize();
 
 	for (i = 0; i < e820.nr_map; i++) {
 		struct e820entry *ei = &e820.map[i];
@@ -1087,7 +1076,6 @@ void __init memblock_x86_fill(void)
 		memblock_add(ei->addr, ei->size);
 	}
 
-	memblock_analyze();
 	memblock_dump_all();
 }