Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Make SN2 PCI code use ioremap rather than manually mangle the address
  [IA64] Force error to surface in nofault code
  [IA64] change sh_change_coherence oemcall to use nolock
  [IA64] remove duplicate header include line
  [IA64] Correct unwind validation code
  [IA64] is_power_of_2-ia64/mm/hugetlbpage.c

8 files changed, 27 insertions, 15 deletions

diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index a06667c7acc..3486fe7d6e6 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -18,7 +18,6 @@
 #include <linux/time.h>
 #include <linux/interrupt.h>
 #include <linux/efi.h>
-#include <linux/profile.h>
 #include <linux/timex.h>
 
 #include <asm/machvec.h>
diff --git a/arch/ia64/kernel/unwind.c b/arch/ia64/kernel/unwind.c
index b0b08b5f3ec..c1bdb513181 100644
--- a/arch/ia64/kernel/unwind.c
+++ b/arch/ia64/kernel/unwind.c
@@ -1856,11 +1856,19 @@ find_save_locs (struct unw_frame_info *info)
 	return 0;
 }
 
+static int
+unw_valid(const struct unw_frame_info *info, unsigned long* p)
+{
+	unsigned long loc = (unsigned long)p;
+	return (loc >= info->regstk.limit && loc < info->regstk.top) ||
+	       (loc >= info->memstk.top && loc < info->memstk.limit);
+}
+
 int
 unw_unwind (struct unw_frame_info *info)
 {
 	unsigned long prev_ip, prev_sp, prev_bsp;
-	unsigned long ip, pr, num_regs, rp_loc, pfs_loc;
+	unsigned long ip, pr, num_regs;
 	STAT(unsigned long start, flags;)
 	int retval;
 
@@ -1871,8 +1879,7 @@ unw_unwind (struct unw_frame_info *info)
 	prev_bsp = info->bsp;
 
 	/* validate the return IP pointer */
-	rp_loc = (unsigned long) info->rp_loc;
-	if ((rp_loc < info->regstk.limit) || (rp_loc > info->regstk.top)) {
+	if (!unw_valid(info, info->rp_loc)) {
 		/* FIXME: should really be level 0 but it occurs too often. KAO */
 		UNW_DPRINT(1, "unwind.%s: failed to locate return link (ip=0x%lx)!\n",
 			   __FUNCTION__, info->ip);
@@ -1888,8 +1895,7 @@ unw_unwind (struct unw_frame_info *info)
 	}
 
 	/* validate the previous stack frame pointer */
-	pfs_loc = (unsigned long) info->pfs_loc;
-	if ((pfs_loc < info->regstk.limit) || (pfs_loc > info->regstk.top)) {
+	if (!unw_valid(info, info->pfs_loc)) {
 		UNW_DPRINT(0, "unwind.%s: failed to locate ar.pfs!\n", __FUNCTION__);
 		STAT(unw.stat.api.unwind_time += ia64_get_itc() - start; local_irq_restore(flags));
 		return -1;
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index 1346b7f0539..d22861c5b04 100644
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c
@@ -15,6 +15,7 @@
 #include <linux/pagemap.h>
 #include <linux/slab.h>
 #include <linux/sysctl.h>
+#include <linux/log2.h>
 #include <asm/mman.h>
 #include <asm/pgalloc.h>
 #include <asm/tlb.h>
@@ -182,7 +183,7 @@ static int __init hugetlb_setup_sz(char *str)
 		tr_pages = 0x15557000UL;
 
 	size = memparse(str, &str);
-	if (*str || (size & (size-1)) || !(tr_pages & size) ||
+	if (*str || !is_power_of_2(size) || !(tr_pages & size) ||
 		size <= PAGE_SIZE ||
 		size >= (1UL << PAGE_SHIFT << MAX_ORDER)) {
 		printk(KERN_WARNING "Invalid huge page size specified\n");
diff --git a/arch/ia64/sn/kernel/xp_nofault.S b/arch/ia64/sn/kernel/xp_nofault.S
index b772543053c..54e8973b6e9 100644
--- a/arch/ia64/sn/kernel/xp_nofault.S
+++ b/arch/ia64/sn/kernel/xp_nofault.S
@@ -21,7 +21,8 @@
 xp_nofault_PIOR:
 	mov	r8=r0			// Stage a success return value
 	ld8.acq	r9=[r32];;		// PIO Read the specified register
-	adds	r9=1,r9			// Add to force a consume
+	adds	r9=1,r9;;		// Add to force consumption
+	or	r9=r9,r9;;		// Or to force consumption
 	br.ret.sptk.many b0;;		// Return success
 
 	.global xp_error_PIOR
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_provider.c b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
index 04a8256017e..b42bfcae6f9 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_provider.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
@@ -15,6 +15,7 @@
 #include <asm/sn/pcibus_provider_defs.h>
 #include <asm/sn/pcidev.h>
 #include <asm/sn/sn_sal.h>
+#include <asm/sn/pic.h>
 #include <asm/sn/sn2/sn_hwperf.h>
 #include "xtalk/xwidgetdev.h"
 #include "xtalk/hubdev.h"
@@ -130,9 +131,9 @@ pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
 	}
 
 	memcpy(soft, prom_bussoft, sizeof(struct pcibus_info));
-	soft->pbi_buscommon.bs_base =
-	    (((u64) soft->pbi_buscommon.
-	      bs_base << 4) >> 4) | __IA64_UNCACHED_OFFSET;
+	soft->pbi_buscommon.bs_base = (unsigned long)
+		ioremap(REGION_OFFSET(soft->pbi_buscommon.bs_base),
+			sizeof(struct pic));
 
 	spin_lock_init(&soft->pbi_lock);
 
diff --git a/arch/ia64/sn/pci/tioca_provider.c b/arch/ia64/sn/pci/tioca_provider.c
index b9bedbd6e1d..d798dd4d0dc 100644
--- a/arch/ia64/sn/pci/tioca_provider.c
+++ b/arch/ia64/sn/pci/tioca_provider.c
@@ -610,7 +610,9 @@ tioca_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
 		return NULL;
 
 	memcpy(tioca_common, prom_bussoft, sizeof(struct tioca_common));
-	tioca_common->ca_common.bs_base |= __IA64_UNCACHED_OFFSET;
+	tioca_common->ca_common.bs_base = (unsigned long)
+		ioremap(REGION_OFFSET(tioca_common->ca_common.bs_base),
+			sizeof(struct tioca_common));
 
 	/* init kernel-private area */
 
diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c
index f4c0b961a93..84b72b27e27 100644
--- a/arch/ia64/sn/pci/tioce_provider.c
+++ b/arch/ia64/sn/pci/tioce_provider.c
@@ -1002,7 +1002,9 @@ tioce_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
 		return NULL;
 
 	memcpy(tioce_common, prom_bussoft, sizeof(struct tioce_common));
-	tioce_common->ce_pcibus.bs_base |= __IA64_UNCACHED_OFFSET;
+	tioce_common->ce_pcibus.bs_base = (unsigned long)
+		ioremap(REGION_OFFSET(tioce_common->ce_pcibus.bs_base),
+			sizeof(struct tioce_common));
 
 	tioce_kern = tioce_kern_init(tioce_common);
 	if (tioce_kern == NULL) {
diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h
index 291e8ceed6e..d3566a298fa 100644
--- a/include/asm-ia64/sn/sn_sal.h
+++ b/include/asm-ia64/sn/sn_sal.h
@@ -696,8 +696,8 @@ static inline int
 sn_change_coherence(u64 *new_domain, u64 *old_domain)
 {
 	struct ia64_sal_retval ret_stuff;
-	ia64_sal_oemcall(&ret_stuff, SN_SAL_COHERENCE, (u64)new_domain,
-			 (u64)old_domain, 0, 0, 0, 0, 0);
+	ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_COHERENCE, (u64)new_domain,
+				(u64)old_domain, 0, 0, 0, 0, 0);
 	return ret_stuff.status;
 }