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authorDavid S. Miller2012-09-28 14:40:49 -0400
committerDavid S. Miller2012-09-28 14:40:49 -0400
commit6a06e5e1bb217be077e1f8ee2745b4c5b1aa02db (patch)
tree8faea23112a11f52524eb413f71b7b02712d8b53 /arch
parentd9f72f359e00a45a6cd7cc2d5121b04b9dc927e1 (diff)
parent6672d90fe779dc0dfffe027c3ede12609df091c2 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/team/team.c drivers/net/usb/qmi_wwan.c net/batman-adv/bat_iv_ogm.c net/ipv4/fib_frontend.c net/ipv4/route.c net/l2tp/l2tp_netlink.c The team, fib_frontend, route, and l2tp_netlink conflicts were simply overlapping changes. qmi_wwan and bat_iv_ogm were of the "use HEAD" variety. With help from Antonio Quartulli. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/boot/compressed/head.S1
-rw-r--r--arch/arm/boot/dts/at91sam9260.dtsi3
-rw-r--r--arch/arm/boot/dts/at91sam9263.dtsi5
-rw-r--r--arch/arm/boot/dts/at91sam9g45.dtsi5
-rw-r--r--arch/arm/boot/dts/at91sam9n12.dtsi4
-rw-r--r--arch/arm/boot/dts/at91sam9x5.dtsi4
-rw-r--r--arch/arm/include/asm/unistd.h2
-rw-r--r--arch/arm/kernel/calls.S1
-rw-r--r--arch/arm/kernel/smp_twd.c48
-rw-r--r--arch/arm/mach-imx/clk-imx25.c2
-rw-r--r--arch/arm/mach-imx/mach-armadillo5x0.c3
-rw-r--r--arch/arm/mach-mxs/mach-mxs.c2
-rw-r--r--arch/arm/mach-orion5x/common.c7
-rw-r--r--arch/arm/mach-shmobile/board-kzm9g.c4
-rw-r--r--arch/arm/mm/dma-mapping.c2
-rw-r--r--arch/arm/plat-mxc/include/mach/mx25.h1
-rw-r--r--arch/arm/plat-samsung/clock.c10
-rw-r--r--arch/c6x/include/asm/Kbuild1
-rw-r--r--arch/c6x/include/asm/barrier.h27
-rw-r--r--arch/m68k/platform/coldfire/clk.c6
-rw-r--r--arch/mips/kernel/smp-cmp.c2
-rw-r--r--arch/mips/mm/gup.c2
-rw-r--r--arch/mips/mti-malta/malta-int.c9
-rw-r--r--arch/mips/mti-malta/malta-platform.c5
-rw-r--r--arch/s390/include/asm/hugetlb.h24
-rw-r--r--arch/s390/include/asm/tlbflush.h2
-rw-r--r--arch/s390/kernel/setup.c2
-rw-r--r--arch/s390/lib/uaccess_pt.c142
-rw-r--r--arch/sh/kernel/cpu/sh5/entry.S2
-rw-r--r--arch/sh/kernel/entry-common.S2
-rw-r--r--arch/sparc/kernel/module.c13
-rw-r--r--arch/tile/include/gxio/iorpc_trio.h24
-rw-r--r--arch/um/include/asm/processor-generic.h9
-rw-r--r--arch/um/include/shared/common-offsets.h10
-rw-r--r--arch/um/include/shared/user.h11
-rw-r--r--arch/um/kernel/exec.c25
-rw-r--r--arch/um/kernel/process.c8
-rw-r--r--arch/um/kernel/signal.c6
-rw-r--r--arch/um/kernel/syscall.c24
-rw-r--r--arch/um/scripts/Makefile.rules2
-rw-r--r--arch/x86/Kconfig8
-rw-r--r--arch/x86/Makefile2
-rw-r--r--arch/x86/include/asm/xen/page.h3
-rw-r--r--arch/x86/kernel/cpu/perf_event.h2
-rw-r--r--arch/x86/kernel/cpu/perf_event_amd_ibs.c12
-rw-r--r--arch/x86/kernel/cpu/perf_event_intel.c24
-rw-r--r--arch/x86/kernel/cpu/perf_event_intel_ds.c14
-rw-r--r--arch/x86/kernel/cpu/perf_event_intel_uncore.c6
-rw-r--r--arch/x86/mm/init.c2
-rw-r--r--arch/x86/um/Kconfig1
-rw-r--r--arch/x86/um/shared/sysdep/kernel-offsets.h3
-rw-r--r--arch/x86/um/shared/sysdep/syscalls.h2
-rw-r--r--arch/x86/um/signal.c6
-rw-r--r--arch/x86/um/sys_call_table_32.c2
-rw-r--r--arch/x86/um/syscalls_32.c27
-rw-r--r--arch/x86/um/syscalls_64.c23
-rw-r--r--arch/x86/xen/enlighten.c4
-rw-r--r--arch/x86/xen/p2m.c27
-rw-r--r--arch/x86/xen/setup.c4
59 files changed, 335 insertions, 299 deletions
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 81769c1341fa..bc67cbff3944 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -653,6 +653,7 @@ __armv7_mmu_cache_on:
mcrne p15, 0, r0, c8, c7, 0 @ flush I,D TLBs
#endif
mrc p15, 0, r0, c1, c0, 0 @ read control reg
+ bic r0, r0, #1 << 28 @ clear SCTLR.TRE
orr r0, r0, #0x5000 @ I-cache enable, RR cache replacement
orr r0, r0, #0x003c @ write buffer
#ifdef CONFIG_MMU
diff --git a/arch/arm/boot/dts/at91sam9260.dtsi b/arch/arm/boot/dts/at91sam9260.dtsi
index 66389c1c6f62..7c95f76398de 100644
--- a/arch/arm/boot/dts/at91sam9260.dtsi
+++ b/arch/arm/boot/dts/at91sam9260.dtsi
@@ -104,6 +104,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioB: gpio@fffff600 {
@@ -113,6 +114,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioC: gpio@fffff800 {
@@ -122,6 +124,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
dbgu: serial@fffff200 {
diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi
index b460d6ce9eb5..195019b7ca0e 100644
--- a/arch/arm/boot/dts/at91sam9263.dtsi
+++ b/arch/arm/boot/dts/at91sam9263.dtsi
@@ -95,6 +95,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioB: gpio@fffff400 {
@@ -104,6 +105,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioC: gpio@fffff600 {
@@ -113,6 +115,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioD: gpio@fffff800 {
@@ -122,6 +125,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioE: gpio@fffffa00 {
@@ -131,6 +135,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
dbgu: serial@ffffee00 {
diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index bafa8806fc17..63751b1e744b 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -113,6 +113,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioB: gpio@fffff400 {
@@ -122,6 +123,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioC: gpio@fffff600 {
@@ -131,6 +133,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioD: gpio@fffff800 {
@@ -140,6 +143,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioE: gpio@fffffa00 {
@@ -149,6 +153,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
dbgu: serial@ffffee00 {
diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi
index bfac0dfc332c..ef9336ae9614 100644
--- a/arch/arm/boot/dts/at91sam9n12.dtsi
+++ b/arch/arm/boot/dts/at91sam9n12.dtsi
@@ -107,6 +107,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioB: gpio@fffff600 {
@@ -116,6 +117,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioC: gpio@fffff800 {
@@ -125,6 +127,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioD: gpio@fffffa00 {
@@ -134,6 +137,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
dbgu: serial@fffff200 {
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index 4a18c393b136..8a387a8d61b7 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -115,6 +115,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioB: gpio@fffff600 {
@@ -124,6 +125,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioC: gpio@fffff800 {
@@ -133,6 +135,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
pioD: gpio@fffffa00 {
@@ -142,6 +145,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
+ #interrupt-cells = <2>;
};
dbgu: serial@fffff200 {
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index 0cab47d4a83f..2fde5fd1acce 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -404,6 +404,7 @@
#define __NR_setns (__NR_SYSCALL_BASE+375)
#define __NR_process_vm_readv (__NR_SYSCALL_BASE+376)
#define __NR_process_vm_writev (__NR_SYSCALL_BASE+377)
+ /* 378 for kcmp */
/*
* The following SWIs are ARM private.
@@ -483,6 +484,7 @@
*/
#define __IGNORE_fadvise64_64
#define __IGNORE_migrate_pages
+#define __IGNORE_kcmp
#endif /* __KERNEL__ */
#endif /* __ASM_ARM_UNISTD_H */
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 463ff4a0ec8a..e337879595e5 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -387,6 +387,7 @@
/* 375 */ CALL(sys_setns)
CALL(sys_process_vm_readv)
CALL(sys_process_vm_writev)
+ CALL(sys_ni_syscall) /* reserved for sys_kcmp */
#ifndef syscalls_counted
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
#define syscalls_counted
diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
index fef42b21cecb..e1f906989bb8 100644
--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
@@ -11,7 +11,6 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/clk.h>
-#include <linux/cpufreq.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/err.h>
@@ -96,7 +95,52 @@ static void twd_timer_stop(struct clock_event_device *clk)
disable_percpu_irq(clk->irq);
}
-#ifdef CONFIG_CPU_FREQ
+#ifdef CONFIG_COMMON_CLK
+
+/*
+ * Updates clockevent frequency when the cpu frequency changes.
+ * Called on the cpu that is changing frequency with interrupts disabled.
+ */
+static void twd_update_frequency(void *new_rate)
+{
+ twd_timer_rate = *((unsigned long *) new_rate);
+
+ clockevents_update_freq(*__this_cpu_ptr(twd_evt), twd_timer_rate);
+}
+
+static int twd_rate_change(struct notifier_block *nb,
+ unsigned long flags, void *data)
+{
+ struct clk_notifier_data *cnd = data;
+
+ /*
+ * The twd clock events must be reprogrammed to account for the new
+ * frequency. The timer is local to a cpu, so cross-call to the
+ * changing cpu.
+ */
+ if (flags == POST_RATE_CHANGE)
+ smp_call_function(twd_update_frequency,
+ (void *)&cnd->new_rate, 1);
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block twd_clk_nb = {
+ .notifier_call = twd_rate_change,
+};
+
+static int twd_clk_init(void)
+{
+ if (twd_evt && *__this_cpu_ptr(twd_evt) && !IS_ERR(twd_clk))
+ return clk_notifier_register(twd_clk, &twd_clk_nb);
+
+ return 0;
+}
+core_initcall(twd_clk_init);
+
+#elif defined (CONFIG_CPU_FREQ)
+
+#include <linux/cpufreq.h>
/*
* Updates clockevent frequency when the cpu frequency changes.
diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c
index 4431a62fff5b..d20d4795f4ea 100644
--- a/arch/arm/mach-imx/clk-imx25.c
+++ b/arch/arm/mach-imx/clk-imx25.c
@@ -241,6 +241,6 @@ int __init mx25_clocks_init(void)
clk_register_clkdev(clk[sdma_ahb], "ahb", "imx35-sdma");
clk_register_clkdev(clk[iim_ipg], "iim", NULL);
- mxc_timer_init(MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54);
+ mxc_timer_init(MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), MX25_INT_GPT1);
return 0;
}
diff --git a/arch/arm/mach-imx/mach-armadillo5x0.c b/arch/arm/mach-imx/mach-armadillo5x0.c
index 2c6ab3273f9e..5985ed1b8c98 100644
--- a/arch/arm/mach-imx/mach-armadillo5x0.c
+++ b/arch/arm/mach-imx/mach-armadillo5x0.c
@@ -526,7 +526,8 @@ static void __init armadillo5x0_init(void)
imx31_add_mxc_nand(&armadillo5x0_nand_board_info);
/* set NAND page size to 2k if not configured via boot mode pins */
- __raw_writel(__raw_readl(MXC_CCM_RCSR) | (1 << 30), MXC_CCM_RCSR);
+ __raw_writel(__raw_readl(mx3_ccm_base + MXC_CCM_RCSR) |
+ (1 << 30), mx3_ccm_base + MXC_CCM_RCSR);
/* RTC */
/* Get RTC IRQ and register the chip */
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 8dabfe81d07c..ff886e01a0b0 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -261,7 +261,7 @@ static void __init apx4devkit_init(void)
enable_clk_enet_out();
if (IS_BUILTIN(CONFIG_PHYLIB))
- phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK,
+ phy_register_fixup_for_uid(PHY_ID_KSZ8051, MICREL_PHY_ID_MASK,
apx4devkit_phy_fixup);
mxsfb_pdata.mode_list = apx4devkit_video_modes;
diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c
index 410291c67666..a6cd14ab1e4e 100644
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -204,6 +204,13 @@ void __init orion5x_wdt_init(void)
void __init orion5x_init_early(void)
{
orion_time_set_base(TIMER_VIRT_BASE);
+
+ /*
+ * Some Orion5x devices allocate their coherent buffers from atomic
+ * context. Increase size of atomic coherent pool to make sure such
+ * the allocations won't fail.
+ */
+ init_dma_coherent_pool_size(SZ_1M);
}
int orion5x_tclk;
diff --git a/arch/arm/mach-shmobile/board-kzm9g.c b/arch/arm/mach-shmobile/board-kzm9g.c
index 53b7ea92c32c..3b8a0171c3cb 100644
--- a/arch/arm/mach-shmobile/board-kzm9g.c
+++ b/arch/arm/mach-shmobile/board-kzm9g.c
@@ -346,11 +346,11 @@ static struct resource sh_mmcif_resources[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
- .start = gic_spi(141),
+ .start = gic_spi(140),
.flags = IORESOURCE_IRQ,
},
[2] = {
- .start = gic_spi(140),
+ .start = gic_spi(141),
.flags = IORESOURCE_IRQ,
},
};
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index e59c4ab71bcb..13f555d62491 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -346,6 +346,8 @@ static int __init atomic_pool_init(void)
(unsigned)pool->size / 1024);
return 0;
}
+
+ kfree(pages);
no_pages:
kfree(bitmap);
no_bitmap:
diff --git a/arch/arm/plat-mxc/include/mach/mx25.h b/arch/arm/plat-mxc/include/mach/mx25.h
index 627d94f1b010..ec466400a200 100644
--- a/arch/arm/plat-mxc/include/mach/mx25.h
+++ b/arch/arm/plat-mxc/include/mach/mx25.h
@@ -98,6 +98,7 @@
#define MX25_INT_UART1 (NR_IRQS_LEGACY + 45)
#define MX25_INT_GPIO2 (NR_IRQS_LEGACY + 51)
#define MX25_INT_GPIO1 (NR_IRQS_LEGACY + 52)
+#define MX25_INT_GPT1 (NR_IRQS_LEGACY + 54)
#define MX25_INT_FEC (NR_IRQS_LEGACY + 57)
#define MX25_DMA_REQ_SSI2_RX1 22
diff --git a/arch/arm/plat-samsung/clock.c b/arch/arm/plat-samsung/clock.c
index 65c5eca475e7..d1116e2dfbea 100644
--- a/arch/arm/plat-samsung/clock.c
+++ b/arch/arm/plat-samsung/clock.c
@@ -144,6 +144,7 @@ long clk_round_rate(struct clk *clk, unsigned long rate)
int clk_set_rate(struct clk *clk, unsigned long rate)
{
+ unsigned long flags;
int ret;
if (IS_ERR(clk))
@@ -159,9 +160,9 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
if (clk->ops == NULL || clk->ops->set_rate == NULL)
return -EINVAL;
- spin_lock(&clocks_lock);
+ spin_lock_irqsave(&clocks_lock, flags);
ret = (clk->ops->set_rate)(clk, rate);
- spin_unlock(&clocks_lock);
+ spin_unlock_irqrestore(&clocks_lock, flags);
return ret;
}
@@ -173,17 +174,18 @@ struct clk *clk_get_parent(struct clk *clk)
int clk_set_parent(struct clk *clk, struct clk *parent)
{
+ unsigned long flags;
int ret = 0;
if (IS_ERR(clk))
return -EINVAL;
- spin_lock(&clocks_lock);
+ spin_lock_irqsave(&clocks_lock, flags);
if (clk->ops && clk->ops->set_parent)
ret = (clk->ops->set_parent)(clk, parent);
- spin_unlock(&clocks_lock);
+ spin_unlock_irqrestore(&clocks_lock, flags);
return ret;
}
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
index 3af601e31e66..f08e89183cda 100644
--- a/arch/c6x/include/asm/Kbuild
+++ b/arch/c6x/include/asm/Kbuild
@@ -2,6 +2,7 @@ include include/asm-generic/Kbuild.asm
generic-y += atomic.h
generic-y += auxvec.h
+generic-y += barrier.h
generic-y += bitsperlong.h
generic-y += bugs.h
generic-y += cputime.h
diff --git a/arch/c6x/include/asm/barrier.h b/arch/c6x/include/asm/barrier.h
deleted file mode 100644
index 538240e85909..000000000000
--- a/arch/c6x/include/asm/barrier.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Port on Texas Instruments TMS320C6x architecture
- *
- * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
- * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef _ASM_C6X_BARRIER_H
-#define _ASM_C6X_BARRIER_H
-
-#define nop() asm("NOP\n");
-
-#define mb() barrier()
-#define rmb() barrier()
-#define wmb() barrier()
-#define set_mb(var, value) do { var = value; mb(); } while (0)
-#define set_wmb(var, value) do { var = value; wmb(); } while (0)
-
-#define smp_mb() barrier()
-#define smp_rmb() barrier()
-#define smp_wmb() barrier()
-#define smp_read_barrier_depends() do { } while (0)
-
-#endif /* _ASM_C6X_BARRIER_H */
diff --git a/arch/m68k/platform/coldfire/clk.c b/arch/m68k/platform/coldfire/clk.c
index 75f9ee967ea7..9cd13b4ce42b 100644
--- a/arch/m68k/platform/coldfire/clk.c
+++ b/arch/m68k/platform/coldfire/clk.c
@@ -146,9 +146,3 @@ struct clk_ops clk_ops1 = {
};
#endif /* MCFPM_PPMCR1 */
#endif /* MCFPM_PPMCR0 */
-
-struct clk *devm_clk_get(struct device *dev, const char *id)
-{
- return NULL;
-}
-EXPORT_SYMBOL(devm_clk_get);
diff --git a/arch/mips/kernel/smp-cmp.c b/arch/mips/kernel/smp-cmp.c
index e7e03ecf5495..afc379ca3753 100644
--- a/arch/mips/kernel/smp-cmp.c
+++ b/arch/mips/kernel/smp-cmp.c
@@ -102,7 +102,7 @@ static void cmp_init_secondary(void)
c->vpe_id = (read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE;
#endif
#ifdef CONFIG_MIPS_MT_SMTC
- c->tc_id = (read_c0_tcbind() >> TCBIND_CURTC_SHIFT) & TCBIND_CURTC;
+ c->tc_id = (read_c0_tcbind() & TCBIND_CURTC) >> TCBIND_CURTC_SHIFT;
#endif
}
diff --git a/arch/mips/mm/gup.c b/arch/mips/mm/gup.c
index 33aadbcf170b..dcfd573871c1 100644
--- a/arch/mips/mm/gup.c
+++ b/arch/mips/mm/gup.c
@@ -152,6 +152,8 @@ static int gup_huge_pud(pud_t pud, unsigned long addr, unsigned long end,
do {
VM_BUG_ON(compound_head(page) != head);
pages[*nr] = page;
+ if (PageTail(page))
+ get_huge_page_tail(page);
(*nr)++;
page++;
refs++;
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index 7b13a4caeea4..fea823f18479 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -273,16 +273,19 @@ asmlinkage void plat_irq_dispatch(void)
unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
int irq;
+ if (unlikely(!pending)) {
+ spurious_interrupt();
+ return;
+ }
+
irq = irq_ffs(pending);
if (irq == MIPSCPU_INT_I8259A)
malta_hw0_irqdispatch();
else if (gic_present && ((1 << irq) & ipi_map[smp_processor_id()]))
malta_ipi_irqdispatch();
- else if (irq >= 0)
- do_IRQ(MIPS_CPU_IRQ_BASE + irq);
else
- spurious_interrupt();
+ do_IRQ(MIPS_CPU_IRQ_BASE + irq);
}
#ifdef CONFIG_MIPS_MT_SMP
diff --git a/arch/mips/mti-malta/malta-platform.c b/arch/mips/mti-malta/malta-platform.c
index 4c35301720e7..80562b81f0f2 100644
--- a/arch/mips/mti-malta/malta-platform.c
+++ b/arch/mips/mti-malta/malta-platform.c
@@ -138,11 +138,6 @@ static int __init malta_add_devices(void)
if (err)
return err;
- /*
- * Set RTC to BCD mode to support current alarm code.
- */
- CMOS_WRITE(CMOS_READ(RTC_CONTROL) & ~RTC_DM_BINARY, RTC_CONTROL);
-
return 0;
}
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
index 799ed0f1643d..2d6e6e380564 100644
--- a/arch/s390/include/asm/hugetlb.h
+++ b/arch/s390/include/asm/hugetlb.h
@@ -66,16 +66,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
return pte;
}
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep)
-{
- pte_t pte = huge_ptep_get(ptep);
-
- mm->context.flush_mm = 1;
- pmd_clear((pmd_t *) ptep);
- return pte;
-}
-
static inline void __pmd_csp(pmd_t *pmdp)
{
register unsigned long reg2 asm("2") = pmd_val(*pmdp);
@@ -117,6 +107,15 @@ static inline void huge_ptep_invalidate(struct mm_struct *mm,
__pmd_csp(pmdp);
}
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+ unsigned long addr, pte_t *ptep)
+{
+ pte_t pte = huge_ptep_get(ptep);
+
+ huge_ptep_invalidate(mm, addr, ptep);
+ return pte;
+}
+
#define huge_ptep_set_access_flags(__vma, __addr, __ptep, __entry, __dirty) \
({ \
int __changed = !pte_same(huge_ptep_get(__ptep), __entry); \
@@ -131,10 +130,7 @@ static inline void huge_ptep_invalidate(struct mm_struct *mm,
({ \
pte_t __pte = huge_ptep_get(__ptep); \
if (pte_write(__pte)) { \
- (__mm)->context.flush_mm = 1; \
- if (atomic_read(&(__mm)->context.attach_count) > 1 || \
- (__mm) != current->active_mm) \
- huge_ptep_invalidate(__mm, __addr, __ptep); \
+ huge_ptep_invalidate(__mm, __addr, __ptep); \
set_huge_pte_at(__mm, __addr, __ptep, \
huge_pte_wrprotect(__pte)); \
} \
diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h
index 9fde315f3a7c..1d8fe2b17ef6 100644
--- a/arch/s390/include/asm/tlbflush.h
+++ b/arch/s390/include/asm/tlbflush.h
@@ -90,12 +90,10 @@ static inline void __tlb_flush_mm(struct mm_struct * mm)
static inline void __tlb_flush_mm_cond(struct mm_struct * mm)
{
- spin_lock(&mm->page_table_lock);
if (mm->context.flush_mm) {
__tlb_flush_mm(mm);
mm->context.flush_mm = 0;
}
- spin_unlock(&mm->page_table_lock);
}
/*
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index f86c81e13c37..40b57693de38 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -974,11 +974,13 @@ static void __init setup_hwcaps(void)
if (MACHINE_HAS_HPAGE)
elf_hwcap |= HWCAP_S390_HPAGE;
+#if defined(CONFIG_64BIT)
/*
* 64-bit register support for 31-bit processes
* HWCAP_S390_HIGH_GPRS is bit 9.
*/
elf_hwcap |= HWCAP_S390_HIGH_GPRS;
+#endif
get_cpu_id(&cpu_id);
switch (cpu_id.machine) {
diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c
index 60ee2b883797..2d37bb861faf 100644
--- a/arch/s390/lib/uaccess_pt.c
+++ b/arch/s390/lib/uaccess_pt.c
@@ -2,69 +2,82 @@
* User access functions based on page table walks for enhanced
* system layout without hardware support.
*
- * Copyright IBM Corp. 2006
+ * Copyright IBM Corp. 2006, 2012
* Author(s): Gerald Schaefer (gerald.schaefer@de.ibm.com)
*/
#include <linux/errno.h>
#include <linux/hardirq.h>
#include <linux/mm.h>
+#include <linux/hugetlb.h>
#include <asm/uaccess.h>
#include <asm/futex.h>
#include "uaccess.h"
-static inline pte_t *follow_table(struct mm_struct *mm, unsigned long addr)
+
+/*
+ * Returns kernel address for user virtual address. If the returned address is
+ * >= -4095 (IS_ERR_VALUE(x) returns true), a fault has occured and the address
+ * contains the (negative) exception code.
+ */
+static __always_inline unsigned long follow_table(struct mm_struct *mm,
+ unsigned long addr, int write)
{
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
+ pte_t *ptep;
pgd = pgd_offset(mm, addr);
if (pgd_none(*pgd) || unlikely(pgd_bad(*pgd)))
- return (pte_t *) 0x3a;
+ return -0x3aUL;
pud = pud_offset(pgd, addr);
if (pud_none(*pud) || unlikely(pud_bad(*pud)))
- return (pte_t *) 0x3b;
+ return -0x3bUL;
pmd = pmd_offset(pud, addr);
- if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd)))
- return (pte_t *) 0x10;
+ if (pmd_none(*pmd))
+ return -0x10UL;
+ if (pmd_huge(*pmd)) {
+ if (write && (pmd_val(*pmd) & _SEGMENT_ENTRY_RO))
+ return -0x04UL;
+ return (pmd_val(*pmd) & HPAGE_MASK) + (addr & ~HPAGE_MASK);
+ }
+ if (unlikely(pmd_bad(*pmd)))
+ return -0x10UL;
+
+ ptep = pte_offset_map(pmd, addr);
+ if (!pte_present(*ptep))
+ return -0x11UL;
+ if (write && !pte_write(*ptep))
+ return -0x04UL;
- return pte_offset_map(pmd, addr);
+ return (pte_val(*ptep) & PAGE_MASK) + (addr & ~PAGE_MASK);
}
static __always_inline size_t __user_copy_pt(unsigned long uaddr, void *kptr,
size_t n, int write_user)
{
struct mm_struct *mm = current->mm;
- unsigned long offset, pfn, done, size;
- pte_t *pte;
+ unsigned long offset, done, size, kaddr;
void *from, *to;
done = 0;
retry:
spin_lock(&mm->page_table_lock);
do {
- pte = follow_table(mm, uaddr);
- if ((unsigned long) pte < 0x1000)
+ kaddr = follow_table(mm, uaddr, write_user);
+ if (IS_ERR_VALUE(kaddr))
goto fault;
- if (!pte_present(*pte)) {
- pte = (pte_t *) 0x11;
- goto fault;
- } else if (write_user && !pte_write(*pte)) {
- pte = (pte_t *) 0x04;
- goto fault;
- }
- pfn = pte_pfn(*pte);
- offset = uaddr & (PAGE_SIZE - 1);
+ offset = uaddr & ~PAGE_MASK;
size = min(n - done, PAGE_SIZE - offset);
if (write_user) {
- to = (void *)((pfn << PAGE_SHIFT) + offset);
+ to = (void *) kaddr;
from = kptr + done;
} else {
- from = (void *)((pfn << PAGE_SHIFT) + offset);
+ from = (void *) kaddr;
to = kptr + done;
}
memcpy(to, from, size);
@@ -75,7 +88,7 @@ retry:
return n - done;
fault:
spin_unlock(&mm->page_table_lock);
- if (__handle_fault(uaddr, (unsigned long) pte, write_user))
+ if (__handle_fault(uaddr, -kaddr, write_user))
return n - done;
goto retry;
}
@@ -84,27 +97,22 @@ fault:
* Do DAT for user address by page table walk, return kernel address.
* This function needs to be called with current->mm->page_table_lock held.
*/
-static __always_inline unsigned long __dat_user_addr(unsigned long uaddr)
+static __always_inline unsigned long __dat_user_addr(unsigned long uaddr,
+ int write)
{
struct mm_struct *mm = current->mm;
- unsigned long pfn;
- pte_t *pte;
+ unsigned long kaddr;
int rc;
retry:
- pte = follow_table(mm, uaddr);
- if ((unsigned long) pte < 0x1000)
- goto fault;
- if (!pte_present(*pte)) {
- pte = (pte_t *) 0x11;
+ kaddr = follow_table(mm, uaddr, write);
+ if (IS_ERR_VALUE(kaddr))
goto fault;
- }
- pfn = pte_pfn(*pte);
- return (pfn << PAGE_SHIFT) + (uaddr & (PAGE_SIZE - 1));
+ return kaddr;
fault:
spin_unlock(&mm->page_table_lock);
- rc = __handle_fault(uaddr, (unsigned long) pte, 0);
+ rc = __handle_fault(uaddr, -kaddr, write);
spin_lock(&mm->page_table_lock);
if (!rc)
goto retry;
@@ -159,11 +167,9 @@ static size_t clear_user_pt(size_t n, void __user *to)
static size_t strnlen_user_pt(size_t count, const char __user *src)
{
- char *addr;
unsigned long uaddr = (unsigned long) src;
struct mm_struct *mm = current->mm;
- unsigned long offset, pfn, done, len;
- pte_t *pte;
+ unsigned long offset, done, len, kaddr;
size_t len_str;
if (segment_eq(get_fs(), KERNEL_DS))
@@ -172,19 +178,13 @@ static size_t strnlen_user_pt(size_t count, const char __user *src)
retry:
spin_lock(&mm->page_table_lock);
do {
- pte = follow_table(mm, uaddr);
- if ((unsigned long) pte < 0x1000)
- goto fault;
- if (!pte_present(*pte)) {
- pte = (pte_t *) 0x11;
+ kaddr = follow_table(mm, uaddr, 0);
+ if (IS_ERR_VALUE(kaddr))
goto fault;
- }
- pfn = pte_pfn(*pte);
- offset = uaddr & (PAGE_SIZE-1);
- addr = (char *)(pfn << PAGE_SHIFT) + offset;
+ offset = uaddr & ~PAGE_MASK;
len = min(count - done, PAGE_SIZE - offset);
- len_str = strnlen(addr, len);
+ len_str = strnlen((char *) kaddr, len);
done += len_str;
uaddr += len_str;
} while ((len_str == len) && (done < count));
@@ -192,7 +192,7 @@ retry:
return done + 1;
fault:
spin_unlock(&mm->page_table_lock);
- if (__handle_fault(uaddr, (unsigned long) pte, 0))
+ if (__handle_fault(uaddr, -kaddr, 0))
return 0;
goto retry;
}
@@ -225,11 +225,10 @@ static size_t copy_in_user_pt(size_t n, void __user *to,
const void __user *from)
{
struct mm_struct *mm = current->mm;
- unsigned long offset_from, offset_to, offset_max, pfn_from, pfn_to,
- uaddr, done, size, error_code;
+ unsigned long offset_max, uaddr, done, size, error_code;
unsigned long uaddr_from = (unsigned long) from;
unsigned long uaddr_to = (unsigned long) to;
- pte_t *pte_from, *pte_to;
+ unsigned long kaddr_to, kaddr_from;
int write_user;
if (segment_eq(get_fs(), KERNEL_DS)) {
@@ -242,38 +241,23 @@ retry:
do {
write_user = 0;
uaddr = uaddr_from;
- pte_from = follow_table(mm, uaddr_from);
- error_code = (unsigned long) pte_from;
- if (error_code < 0x1000)
- goto fault;
- if (!pte_present(*pte_from)) {
- error_code = 0x11;
+ kaddr_from = follow_table(mm, uaddr_from, 0);
+ error_code = kaddr_from;
+ if (IS_ERR_VALUE(error_code))
goto fault;
- }
write_user = 1;
uaddr = uaddr_to;
- pte_to = follow_table(mm, uaddr_to);
- error_code = (unsigned long) pte_to;
- if (error_code < 0x1000)
- goto fault;
- if (!pte_present(*pte_to)) {
- error_code = 0x11;
+ kaddr_to = follow_table(mm, uaddr_to, 1);
+ error_code = (unsigned long) kaddr_to;
+ if (IS_ERR_VALUE(error_code))
goto fault;
- } else if (!pte_write(*pte_to)) {
- error_code = 0x04;
- goto fault;
- }
- pfn_from = pte_pfn(*pte_from);
- pfn_to = pte_pfn(*pte_to);
- offset_from = uaddr_from & (PAGE_SIZE-1);
- offset_to = uaddr_from & (PAGE_SIZE-1);
- offset_max = max(offset_from, offset_to);
+ offset_max = max(uaddr_from & ~PAGE_MASK,
+ uaddr_to & ~PAGE_MASK);
size = min(n - done, PAGE_SIZE - offset_max);
- memcpy((void *)(pfn_to << PAGE_SHIFT) + offset_to,
- (void *)(pfn_from << PAGE_SHIFT) + offset_from, size);
+ memcpy((void *) kaddr_to, (void *) kaddr_from, size);
done += size;
uaddr_from += size;
uaddr_to += size;
@@ -282,7 +266,7 @@ retry:
return n - done;
fault:
spin_unlock(&mm->page_table_lock);
- if (__handle_fault(uaddr, error_code, write_user))
+ if (__handle_fault(uaddr, -error_code, write_user))
return n - done;
goto retry;
}
@@ -341,7 +325,7 @@ int futex_atomic_op_pt(int op, u32 __user *uaddr, int oparg, int *old)
return __futex_atomic_op_pt(op, uaddr, oparg, old);
spin_lock(&current->mm->page_table_lock);
uaddr = (u32 __force __user *)
- __dat_user_addr((__force unsigned long) uaddr);
+ __dat_user_addr((__force unsigned long) uaddr, 1);
if (!uaddr) {
spin_unlock(&current->mm->page_table_lock);
return -EFAULT;
@@ -378,7 +362,7 @@ int futex_atomic_cmpxchg_pt(u32 *uval, u32 __user *uaddr,
return __futex_atomic_cmpxchg_pt(uval, uaddr, oldval, newval);
spin_lock(&current->mm->page_table_lock);
uaddr = (u32 __force __user *)
- __dat_user_addr((__force unsigned long) uaddr);
+ __dat_user_addr((__force unsigned long) uaddr, 1);
if (!uaddr) {
spin_unlock(&current->mm->page_table_lock);
return -EFAULT;
diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S
index b7cf6a547f11..7e605b95592a 100644
--- a/arch/sh/kernel/cpu/sh5/entry.S
+++ b/arch/sh/kernel/cpu/sh5/entry.S
@@ -933,7 +933,7 @@ ret_with_reschedule:
pta restore_all, tr1
- movi _TIF_SIGPENDING, r8
+ movi (_TIF_SIGPENDING|_TIF_NOTIFY_RESUME), r8
and r8, r7, r8
pta work_notifysig, tr0
bne r8, ZERO, tr0
diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S
index f67601cb3f1f..b96489d8b27d 100644
--- a/arch/sh/kernel/entry-common.S
+++ b/arch/sh/kernel/entry-common.S
@@ -139,7 +139,7 @@ work_pending:
! r8: current_thread_info
! t: result of "tst #_TIF_NEED_RESCHED, r0"
bf/s work_resched
- tst #_TIF_SIGPENDING, r0
+ tst #(_TIF_SIGPENDING | _TIF_NOTIFY_RESUME), r0
work_notifysig:
bt/s __restore_all
mov r15, r4
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 15e0a1693976..f1ddc0d23679 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -48,9 +48,7 @@ void *module_alloc(unsigned long size)
return NULL;
ret = module_map(size);
- if (!ret)
- ret = ERR_PTR(-ENOMEM);
- else
+ if (ret)
memset(ret, 0, size);
return ret;
@@ -116,6 +114,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
v = sym->st_value + rel[i].r_addend;
switch (ELF_R_TYPE(rel[i].r_info) & 0xff) {
+ case R_SPARC_DISP32:
+ v -= (Elf_Addr) location;
+ *loc32 = v;
+ break;
#ifdef CONFIG_SPARC64
case R_SPARC_64:
location[0] = v >> 56;
@@ -128,11 +130,6 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
location[7] = v >> 0;
break;
- case R_SPARC_DISP32:
- v -= (Elf_Addr) location;
- *loc32 = v;
- break;
-
case R_SPARC_WDISP19:
v -= (Elf_Addr) location;
*loc32 = (*loc32 & ~0x7ffff) |
diff --git a/arch/tile/include/gxio/iorpc_trio.h b/arch/tile/include/gxio/iorpc_trio.h
index 15fb77992083..58105c31228b 100644
--- a/arch/tile/include/gxio/iorpc_trio.h
+++ b/arch/tile/include/gxio/iorpc_trio.h
@@ -25,21 +25,23 @@
#include <linux/module.h>
#include <asm/pgtable.h>
-#define GXIO_TRIO_OP_ALLOC_ASIDS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1400)
+#define GXIO_TRIO_OP_DEALLOC_ASID IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1400)
+#define GXIO_TRIO_OP_ALLOC_ASIDS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1401)
-#define GXIO_TRIO_OP_ALLOC_MEMORY_MAPS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1402)
+#define GXIO_TRIO_OP_ALLOC_MEMORY_MAPS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1404)
-#define GXIO_TRIO_OP_ALLOC_PIO_REGIONS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x140e)
-#define GXIO_TRIO_OP_INIT_PIO_REGION_AUX IORPC_OPCODE(IORPC_FORMAT_NONE, 0x140f)
+#define GXIO_TRIO_OP_ALLOC_PIO_REGIONS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1412)
-#define GXIO_TRIO_OP_INIT_MEMORY_MAP_MMU_AUX IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1417)
-#define GXIO_TRIO_OP_GET_PORT_PROPERTY IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1418)
-#define GXIO_TRIO_OP_CONFIG_LEGACY_INTR IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x1419)
-#define GXIO_TRIO_OP_CONFIG_MSI_INTR IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x141a)
+#define GXIO_TRIO_OP_INIT_PIO_REGION_AUX IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1414)
-#define GXIO_TRIO_OP_SET_MPS_MRS IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141c)
-#define GXIO_TRIO_OP_FORCE_RC_LINK_UP IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141d)
-#define GXIO_TRIO_OP_FORCE_EP_LINK_UP IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141e)
+#define GXIO_TRIO_OP_INIT_MEMORY_MAP_MMU_AUX IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141e)
+#define GXIO_TRIO_OP_GET_PORT_PROPERTY IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141f)
+#define GXIO_TRIO_OP_CONFIG_LEGACY_INTR IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x1420)
+#define GXIO_TRIO_OP_CONFIG_MSI_INTR IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x1421)
+
+#define GXIO_TRIO_OP_SET_MPS_MRS IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1423)
+#define GXIO_TRIO_OP_FORCE_RC_LINK_UP IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1424)
+#define GXIO_TRIO_OP_FORCE_EP_LINK_UP IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1425)
#define GXIO_TRIO_OP_GET_MMIO_BASE IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8000)
#define GXIO_TRIO_OP_CHECK_MMIO_OFFSET IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8001)
diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h
index 69f1c57a8d0d..33a6a2423bd2 100644
--- a/arch/um/include/asm/processor-generic.h
+++ b/arch/um/include/asm/processor-generic.h
@@ -20,14 +20,6 @@ struct mm_struct;
struct thread_struct {
struct task_struct *saved_task;
- /*
- * This flag is set to 1 before calling do_fork (and analyzed in
- * copy_thread) to mark that we are begin called from userspace (fork /
- * vfork / clone), and reset to 0 after. It is left to 0 when called
- * from kernelspace (i.e. kernel_thread() or fork_idle(),
- * as of 2.6.11).
- */
- int forking;
struct pt_regs regs;
int singlestep_syscall;
void *fault_addr;
@@ -58,7 +50,6 @@ struct thread_struct {
#define INIT_THREAD \
{ \
- .forking = 0, \
.regs = EMPTY_REGS, \
.fault_addr = NULL, \
.prev_sched = NULL, \
diff --git a/arch/um/include/shared/common-offsets.h b/arch/um/include/shared/common-offsets.h
index 40db8f71deae..2df313b6a586 100644
--- a/arch/um/include/shared/common-offsets.h
+++ b/arch/um/include/shared/common-offsets.h
@@ -7,16 +7,6 @@ DEFINE(UM_KERN_PAGE_MASK, PAGE_MASK);
DEFINE(UM_KERN_PAGE_SHIFT, PAGE_SHIFT);
DEFINE(UM_NSEC_PER_SEC, NSEC_PER_SEC);
-DEFINE_STR(UM_KERN_EMERG, KERN_EMERG);
-DEFINE_STR(UM_KERN_ALERT, KERN_ALERT);
-DEFINE_STR(UM_KERN_CRIT, KERN_CRIT);
-DEFINE_STR(UM_KERN_ERR, KERN_ERR);
-DEFINE_STR(UM_KERN_WARNING, KERN_WARNING);
-DEFINE_STR(UM_KERN_NOTICE, KERN_NOTICE);
-DEFINE_STR(UM_KERN_INFO, KERN_INFO);
-DEFINE_STR(UM_KERN_DEBUG, KERN_DEBUG);
-DEFINE_STR(UM_KERN_CONT, KERN_CONT);
-
DEFINE(UM_ELF_CLASS, ELF_CLASS);
DEFINE(UM_ELFCLASS32, ELFCLASS32);
DEFINE(UM_ELFCLASS64, ELFCLASS64);
diff --git a/arch/um/include/shared/user.h b/arch/um/include/shared/user.h
index 4fa82c055aab..cef068563336 100644
--- a/arch/um/include/shared/user.h
+++ b/arch/um/include/shared/user.h
@@ -26,6 +26,17 @@
extern void panic(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
+/* Requires preincluding include/linux/kern_levels.h */
+#define UM_KERN_EMERG KERN_EMERG
+#define UM_KERN_ALERT KERN_ALERT
+#define UM_KERN_CRIT KERN_CRIT
+#define UM_KERN_ERR KERN_ERR
+#define UM_KERN_WARNING KERN_WARNING
+#define UM_KERN_NOTICE KERN_NOTICE
+#define UM_KERN_INFO KERN_INFO
+#define UM_KERN_DEBUG KERN_DEBUG
+#define UM_KERN_CONT KERN_CONT
+
#ifdef UML_CONFIG_PRINTK
extern int printk(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 6cade9366364..8c82786da823 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -39,34 +39,21 @@ void flush_thread(void)
void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
{
+ get_safe_registers(regs->regs.gp, regs->regs.fp);
PT_REGS_IP(regs) = eip;
PT_REGS_SP(regs) = esp;
-}
-EXPORT_SYMBOL(start_thread);
-
-static long execve1(const char *file,
- const char __user *const __user *argv,
- const char __user *const __user *env)
-{
- long error;
-
- error = do_execve(file, argv, env, &current->thread.regs);
- if (error == 0) {
- task_lock(current);
- current->ptrace &= ~PT_DTRACE;
+ current->ptrace &= ~PT_DTRACE;
#ifdef SUBARCH_EXECVE1
- SUBARCH_EXECVE1(&current->thread.regs.regs);
+ SUBARCH_EXECVE1(regs->regs);
#endif
- task_unlock(current);
- }
- return error;
}
+EXPORT_SYMBOL(start_thread);
long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env)
{
long err;
- err = execve1(file, argv, env);
+ err = do_execve(file, argv, env, &current->thread.regs);
if (!err)
UML_LONGJMP(current->thread.exec_buf, 1);
return err;
@@ -81,7 +68,7 @@ long sys_execve(const char __user *file, const char __user *const __user *argv,
filename = getname(file);
error = PTR_ERR(filename);
if (IS_ERR(filename)) goto out;
- error = execve1(filename, argv, env);
+ error = do_execve(filename, argv, env, &current->thread.regs);
putname(filename);
out:
return error;
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 57fc7028714a..c5f5afa50745 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -181,11 +181,12 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
struct pt_regs *regs)
{
void (*handler)(void);
+ int kthread = current->flags & PF_KTHREAD;
int ret = 0;
p->thread = (struct thread_struct) INIT_THREAD;
- if (current->thread.forking) {
+ if (!kthread) {
memcpy(&p->thread.regs.regs, &regs->regs,
sizeof(p->thread.regs.regs));
PT_REGS_SET_SYSCALL_RETURN(&p->thread.regs, 0);
@@ -195,8 +196,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
handler = fork_handler;
arch_copy_thread(&current->thread.arch, &p->thread.arch);
- }
- else {
+ } else {
get_safe_registers(p->thread.regs.regs.gp, p->thread.regs.regs.fp);
p->thread.request.u.thread = current->thread.request.u.thread;
handler = new_thread_handler;
@@ -204,7 +204,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
new_thread(task_stack_page(p), &p->thread.switch_buf, handler);
- if (current->thread.forking) {
+ if (!kthread) {
clear_flushed_tls(p);
/*
diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index 7362d58efc29..cc9c2350e417 100644
--- a/arch/um/kernel/signal.c
+++ b/arch/um/kernel/signal.c
@@ -22,9 +22,13 @@ static void handle_signal(struct pt_regs *regs, unsigned long signr,
struct k_sigaction *ka, siginfo_t *info)
{
sigset_t *oldset = sigmask_to_save();
+ int singlestep = 0;
unsigned long sp;
int err;
+ if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED))
+ singlestep = 1;
+
/* Did we come from a system call? */
if (PT_REGS_SYSCALL_NR(regs) >= 0) {
/* If so, check system call restarting.. */
@@ -61,7 +65,7 @@ static void handle_signal(struct pt_regs *regs, unsigned long signr,
if (err)
force_sigsegv(signr, current);
else
- signal_delivered(signr, info, ka, regs, 0);
+ signal_delivered(signr, info, ka, regs, singlestep);
}
static int kern_do_signal(struct pt_regs *regs)
diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c
index f958cb876ee3..a4c6d8eee74c 100644
--- a/arch/um/kernel/syscall.c
+++ b/arch/um/kernel/syscall.c
@@ -17,25 +17,25 @@
long sys_fork(void)
{
- long ret;
-
- current->thread.forking = 1;
- ret = do_fork(SIGCHLD, UPT_SP(&current->thread.regs.regs),
+ return do_fork(SIGCHLD, UPT_SP(&current->thread.regs.regs),
&current->thread.regs, 0, NULL, NULL);
- current->thread.forking = 0;
- return ret;
}
long sys_vfork(void)
{
- long ret;
-
- current->thread.forking = 1;
- ret = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
+ return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
UPT_SP(&current->thread.regs.regs),
&current->thread.regs, 0, NULL, NULL);
- current->thread.forking = 0;
- return ret;
+}
+
+long sys_clone(unsigned long clone_flags, unsigned long newsp,
+ void __user *parent_tid, void __user *child_tid)
+{
+ if (!newsp)
+ newsp = UPT_SP(&current->thread.regs.regs);
+
+ return do_fork(clone_flags, newsp, &current->thread.regs, 0, parent_tid,
+ child_tid);
}
long old_mmap(unsigned long addr, unsigned long len,
diff --git a/arch/um/scripts/Makefile.rules b/arch/um/scripts/Makefile.rules
index d50270d26b42..15889df9b466 100644
--- a/arch/um/scripts/Makefile.rules
+++ b/arch/um/scripts/Makefile.rules
@@ -8,7 +8,7 @@ USER_OBJS += $(filter %_user.o,$(obj-y) $(obj-m) $(USER_SINGLE_OBJS))
USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
$(USER_OBJS:.o=.%): \
- c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) -include user.h $(CFLAGS_$(basetarget).o)
+ c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) -include $(srctree)/include/linux/kern_levels.h -include user.h $(CFLAGS_$(basetarget).o)
# These are like USER_OBJS but filter USER_CFLAGS through unprofile instead of
# using it directly.
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8ec3a1aa4abd..50a1d1f9b6d3 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -746,10 +746,10 @@ config SWIOTLB
def_bool y if X86_64
---help---
Support for software bounce buffers used on x86-64 systems
- which don't have a hardware IOMMU (e.g. the current generation
- of Intel's x86-64 CPUs). Using this PCI devices which can only
- access 32-bits of memory can be used on systems with more than
- 3 GB of memory. If unsure, say Y.
+ which don't have a hardware IOMMU. Using this PCI devices
+ which can only access 32-bits of memory can be used on systems
+ with more than 3 GB of memory.
+ If unsure, say Y.
config IOMMU_HELPER
def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 682e9c210baa..474ca35b1bce 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -142,7 +142,7 @@ KBUILD_CFLAGS += $(call cc-option,-mno-avx,)
KBUILD_CFLAGS += $(mflags-y)
KBUILD_AFLAGS += $(mflags-y)
-archscripts:
+archscripts: scripts_basic
$(Q)$(MAKE) $(build)=arch/x86/tools relocs
###
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index 93971e841dd5..472b9b783019 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -51,7 +51,8 @@ extern unsigned long set_phys_range_identity(unsigned long pfn_s,
extern int m2p_add_override(unsigned long mfn, struct page *page,
struct gnttab_map_grant_ref *kmap_op);
-extern int m2p_remove_override(struct page *page, bool clear_pte);
+extern int m2p_remove_override(struct page *page,
+ struct gnttab_map_grant_ref *kmap_op);
extern struct page *m2p_find_override(unsigned long mfn);
extern unsigned long m2p_find_override_pfn(unsigned long mfn, unsigned long pfn);
diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index 6605a81ba339..8b6defe7eefc 100644
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -586,6 +586,8 @@ extern struct event_constraint intel_westmere_pebs_event_constraints[];
extern struct event_constraint intel_snb_pebs_event_constraints[];
+extern struct event_constraint intel_ivb_pebs_event_constraints[];
+
struct event_constraint *intel_pebs_constraints(struct perf_event *event);
void intel_pmu_pebs_enable(struct perf_event *event);
diff --git a/arch/x86/kernel/cpu/perf_event_amd_ibs.c b/arch/x86/kernel/cpu/perf_event_amd_ibs.c
index 7bfb5bec8630..eebd5ffe1bba 100644
--- a/arch/x86/kernel/cpu/perf_event_amd_ibs.c
+++ b/arch/x86/kernel/cpu/perf_event_amd_ibs.c
@@ -209,6 +209,15 @@ static int perf_ibs_precise_event(struct perf_event *event, u64 *config)
return -EOPNOTSUPP;
}
+static const struct perf_event_attr ibs_notsupp = {
+ .exclude_user = 1,
+ .exclude_kernel = 1,
+ .exclude_hv = 1,
+ .exclude_idle = 1,
+ .exclude_host = 1,
+ .exclude_guest = 1,
+};
+
static int perf_ibs_init(struct perf_event *event)
{
struct hw_perf_event *hwc = &event->hw;
@@ -229,6 +238,9 @@ static int perf_ibs_init(struct perf_event *event)
if (event->pmu != &perf_ibs->pmu)
return -ENOENT;
+ if (perf_flags(&event->attr) & perf_flags(&ibs_notsupp))
+ return -EINVAL;
+
if (config & ~perf_ibs->config_mask)
return -EINVAL;
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 0d3d63afa76a..6bca492b8547 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -2048,7 +2048,6 @@ __init int intel_pmu_init(void)
case 42: /* SandyBridge */
case 45: /* SandyBridge, "Romely-EP" */
x86_add_quirk(intel_sandybridge_quirk);
- case 58: /* IvyBridge */
memcpy(hw_cache_event_ids, snb_hw_cache_event_ids,
sizeof(hw_cache_event_ids));
memcpy(hw_cache_extra_regs, snb_hw_cache_extra_regs,
@@ -2073,6 +2072,29 @@ __init int intel_pmu_init(void)
pr_cont("SandyBridge events, ");
break;
+ case 58: /* IvyBridge */
+ memcpy(hw_cache_event_ids, snb_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, snb_hw_cache_extra_regs,
+ sizeof(hw_cache_extra_regs));
+
+ intel_pmu_lbr_init_snb();
+
+ x86_pmu.event_constraints = intel_snb_event_constraints;
+ x86_pmu.pebs_constraints = intel_ivb_pebs_event_constraints;
+ x86_pmu.pebs_aliases = intel_pebs_aliases_snb;
+ x86_pmu.extra_regs = intel_snb_extra_regs;
+ /* all extra regs are per-cpu when HT is on */
+ x86_pmu.er_flags |= ERF_HAS_RSP_1;
+ x86_pmu.er_flags |= ERF_NO_HT_SHARING;
+
+ /* UOPS_ISSUED.ANY,c=1,i=1 to count stall cycles */
+ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] =
+ X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1);
+
+ pr_cont("IvyBridge events, ");
+ break;
+
default:
switch (x86_pmu.version) {
diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index e38d97bf4259..826054a4f2ee 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -407,6 +407,20 @@ struct event_constraint intel_snb_pebs_event_constraints[] = {
EVENT_CONSTRAINT_END
};
+struct event_constraint intel_ivb_pebs_event_constraints[] = {
+ INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
+ INTEL_UEVENT_CONSTRAINT(0x01c2, 0xf), /* UOPS_RETIRED.ALL */
+ INTEL_UEVENT_CONSTRAINT(0x02c2, 0xf), /* UOPS_RETIRED.RETIRE_SLOTS */
+ INTEL_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xc5, 0xf), /* BR_MISP_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xd0, 0xf), /* MEM_UOP_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xd3, 0xf), /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.* */
+ EVENT_CONSTRAINT_END
+};
+
struct event_constraint *intel_pebs_constraints(struct perf_event *event)
{
struct event_constraint *c;
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index 0a5571080e74..38e4894165b9 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -661,6 +661,11 @@ static void snb_uncore_msr_init_box(struct intel_uncore_box *box)
}
}
+static struct uncore_event_desc snb_uncore_events[] = {
+ INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0x00"),
+ { /* end: all zeroes */ },
+};
+
static struct attribute *snb_uncore_formats_attr[] = {
&format_attr_event.attr,
&format_attr_umask.attr,
@@ -704,6 +709,7 @@ static struct intel_uncore_type snb_uncore_cbox = {
.constraints = snb_uncore_cbox_constraints,
.ops = &snb_uncore_msr_ops,
.format_group = &snb_uncore_format_group,
+ .event_descs = snb_uncore_events,
};
static struct intel_uncore_type *snb_msr_uncores[] = {
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index e0e6990723e9..ab1f6a93b527 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -319,7 +319,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
*/
int devmem_is_allowed(unsigned long pagenr)
{
- if (pagenr <= 256)
+ if (pagenr < 256)
return 1;
if (iomem_is_exclusive(pagenr << PAGE_SHIFT))
return 0;
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index 9926e11a772d..aeaff8bef2f1 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -21,6 +21,7 @@ config 64BIT
config X86_32
def_bool !64BIT
select HAVE_AOUT
+ select ARCH_WANT_IPC_PARSE_VERSION
config X86_64
def_bool 64BIT
diff --git a/arch/x86/um/shared/sysdep/kernel-offsets.h b/arch/x86/um/shared/sysdep/kernel-offsets.h
index 5868526b5eef..46a9df99f3c5 100644
--- a/arch/x86/um/shared/sysdep/kernel-offsets.h
+++ b/arch/x86/um/shared/sysdep/kernel-offsets.h
@@ -7,9 +7,6 @@
#define DEFINE(sym, val) \
asm volatile("\n->" #sym " %0 " #val : : "i" (val))
-#define STR(x) #x
-#define DEFINE_STR(sym, val) asm volatile("\n->" #sym " " STR(val) " " #val: : )
-
#define BLANK() asm volatile("\n->" : : )
#define OFFSET(sym, str, mem) \
diff --git a/arch/x86/um/shared/sysdep/syscalls.h b/arch/x86/um/shared/sysdep/syscalls.h
index bd9a89b67e41..ca255a805ed9 100644
--- a/arch/x86/um/shared/sysdep/syscalls.h
+++ b/arch/x86/um/shared/sysdep/syscalls.h
@@ -1,3 +1,5 @@
+extern long sys_clone(unsigned long clone_flags, unsigned long newsp,
+ void __user *parent_tid, void __user *child_tid);
#ifdef __i386__
#include "syscalls_32.h"
#else
diff --git a/arch/x86/um/signal.c b/arch/x86/um/signal.c
index a508cea13503..ba7363ecf896 100644
--- a/arch/x86/um/signal.c
+++ b/arch/x86/um/signal.c
@@ -416,9 +416,6 @@ int setup_signal_stack_sc(unsigned long stack_top, int sig,
PT_REGS_AX(regs) = (unsigned long) sig;
PT_REGS_DX(regs) = (unsigned long) 0;
PT_REGS_CX(regs) = (unsigned long) 0;
-
- if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED))
- ptrace_notify(SIGTRAP);
return 0;
}
@@ -466,9 +463,6 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
PT_REGS_AX(regs) = (unsigned long) sig;
PT_REGS_DX(regs) = (unsigned long) &frame->info;
PT_REGS_CX(regs) = (unsigned long) &frame->uc;
-
- if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED))
- ptrace_notify(SIGTRAP);
return 0;
}
diff --git a/arch/x86/um/sys_call_table_32.c b/arch/x86/um/sys_call_table_32.c
index 68d1dc91b37b..b5408cecac6c 100644
--- a/arch/x86/um/sys_call_table_32.c
+++ b/arch/x86/um/sys_call_table_32.c
@@ -28,7 +28,7 @@
#define ptregs_execve sys_execve
#define ptregs_iopl sys_iopl
#define ptregs_vm86old sys_vm86old
-#define ptregs_clone sys_clone
+#define ptregs_clone i386_clone
#define ptregs_vm86 sys_vm86
#define ptregs_sigaltstack sys_sigaltstack
#define ptregs_vfork sys_vfork
diff --git a/arch/x86/um/syscalls_32.c b/arch/x86/um/syscalls_32.c
index b853e8600b9d..db444c7218fe 100644
--- a/arch/x86/um/syscalls_32.c
+++ b/arch/x86/um/syscalls_32.c
@@ -3,37 +3,24 @@
* Licensed under the GPL
*/
-#include "linux/sched.h"
-#include "linux/shm.h"
-#include "linux/ipc.h"
-#include "linux/syscalls.h"
-#include "asm/mman.h"
-#include "asm/uaccess.h"
-#include "asm/unistd.h"
+#include <linux/syscalls.h>
+#include <sysdep/syscalls.h>
/*
* The prototype on i386 is:
*
- * int clone(int flags, void * child_stack, int * parent_tidptr, struct user_desc * newtls, int * child_tidptr)
+ * int clone(int flags, void * child_stack, int * parent_tidptr, struct user_desc * newtls
*
* and the "newtls" arg. on i386 is read by copy_thread directly from the
* register saved on the stack.
*/
-long sys_clone(unsigned long clone_flags, unsigned long newsp,
- int __user *parent_tid, void *newtls, int __user *child_tid)
+long i386_clone(unsigned long clone_flags, unsigned long newsp,
+ int __user *parent_tid, void *newtls, int __user *child_tid)
{
- long ret;
-
- if (!newsp)
- newsp = UPT_SP(&current->thread.regs.regs);
-
- current->thread.forking = 1;
- ret = do_fork(clone_flags, newsp, &current->thread.regs, 0, parent_tid,
- child_tid);
- current->thread.forking = 0;
- return ret;
+ return sys_clone(clone_flags, newsp, parent_tid, child_tid);
}
+
long sys_sigaction(int sig, const struct old_sigaction __user *act,
struct old_sigaction __user *oact)
{
diff --git a/arch/x86/um/syscalls_64.c b/arch/x86/um/syscalls_64.c
index f3d82bb6e15a..adb08eb5c22a 100644
--- a/arch/x86/um/syscalls_64.c
+++ b/arch/x86/um/syscalls_64.c
@@ -5,12 +5,9 @@
* Licensed under the GPL
*/
-#include "linux/linkage.h"
-#include "linux/personality.h"
-#include "linux/utsname.h"
-#include "asm/prctl.h" /* XXX This should get the constants from libc */
-#include "asm/uaccess.h"
-#include "os.h"
+#include <linux/sched.h>
+#include <asm/prctl.h> /* XXX This should get the constants from libc */
+#include <os.h>
long arch_prctl(struct task_struct *task, int code, unsigned long __user *addr)
{
@@ -79,20 +76,6 @@ long sys_arch_prctl(int code, unsigned long addr)
return arch_prctl(current, code, (unsigned long __user *) addr);
}
-long sys_clone(unsigned long clone_flags, unsigned long newsp,
- void __user *parent_tid, void __user *child_tid)
-{
- long ret;
-
- if (!newsp)
- newsp = UPT_SP(&current->thread.regs.regs);
- current->thread.forking = 1;
- ret = do_fork(clone_flags, newsp, &current->thread.regs, 0, parent_tid,
- child_tid);
- current->thread.forking = 0;
- return ret;
-}
-
void arch_switch_to(struct task_struct *to)
{
if ((to->thread.arch.fs == 0) || (to->mm == NULL))
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 9642d4a38602..1fbe75a95f15 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1452,6 +1452,10 @@ asmlinkage void __init xen_start_kernel(void)
pci_request_acs();
xen_acpi_sleep_register();
+
+ /* Avoid searching for BIOS MP tables */
+ x86_init.mpparse.find_smp_config = x86_init_noop;
+ x86_init.mpparse.get_smp_config = x86_init_uint_noop;
}
#ifdef CONFIG_PCI
/* PCI BIOS service won't work from a PV guest. */
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 76ba0e97e530..72213da605f5 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -828,9 +828,6 @@ int m2p_add_override(unsigned long mfn, struct page *page,
xen_mc_issue(PARAVIRT_LAZY_MMU);
}
- /* let's use dev_bus_addr to record the old mfn instead */
- kmap_op->dev_bus_addr = page->index;
- page->index = (unsigned long) kmap_op;
}
spin_lock_irqsave(&m2p_override_lock, flags);
list_add(&page->lru, &m2p_overrides[mfn_hash(mfn)]);
@@ -857,7 +854,8 @@ int m2p_add_override(unsigned long mfn, struct page *page,
return 0;
}
EXPORT_SYMBOL_GPL(m2p_add_override);
-int m2p_remove_override(struct page *page, bool clear_pte)
+int m2p_remove_override(struct page *page,
+ struct gnttab_map_grant_ref *kmap_op)
{
unsigned long flags;
unsigned long mfn;
@@ -887,10 +885,8 @@ int m2p_remove_override(struct page *page, bool clear_pte)
WARN_ON(!PagePrivate(page));
ClearPagePrivate(page);
- if (clear_pte) {
- struct gnttab_map_grant_ref *map_op =
- (struct gnttab_map_grant_ref *) page->index;
- set_phys_to_machine(pfn, map_op->dev_bus_addr);
+ set_phys_to_machine(pfn, page->index);
+ if (kmap_op != NULL) {
if (!PageHighMem(page)) {
struct multicall_space mcs;
struct gnttab_unmap_grant_ref *unmap_op;
@@ -902,13 +898,13 @@ int m2p_remove_override(struct page *page, bool clear_pte)
* issued. In this case handle is going to -1 because
* it hasn't been modified yet.
*/
- if (map_op->handle == -1)
+ if (kmap_op->handle == -1)
xen_mc_flush();
/*
- * Now if map_op->handle is negative it means that the
+ * Now if kmap_op->handle is negative it means that the
* hypercall actually returned an error.
*/
- if (map_op->handle == GNTST_general_error) {
+ if (kmap_op->handle == GNTST_general_error) {
printk(KERN_WARNING "m2p_remove_override: "
"pfn %lx mfn %lx, failed to modify kernel mappings",
pfn, mfn);
@@ -918,8 +914,8 @@ int m2p_remove_override(struct page *page, bool clear_pte)
mcs = xen_mc_entry(
sizeof(struct gnttab_unmap_grant_ref));
unmap_op = mcs.args;
- unmap_op->host_addr = map_op->host_addr;
- unmap_op->handle = map_op->handle;
+ unmap_op->host_addr = kmap_op->host_addr;
+ unmap_op->handle = kmap_op->handle;
unmap_op->dev_bus_addr = 0;
MULTI_grant_table_op(mcs.mc,
@@ -930,10 +926,9 @@ int m2p_remove_override(struct page *page, bool clear_pte)
set_pte_at(&init_mm, address, ptep,
pfn_pte(pfn, PAGE_KERNEL));
__flush_tlb_single(address);
- map_op->host_addr = 0;
+ kmap_op->host_addr = 0;
}
- } else
- set_phys_to_machine(pfn, page->index);
+ }
/* p2m(m2p(mfn)) == FOREIGN_FRAME(mfn): the mfn is already present
* somewhere in this domain, even before being added to the
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index d11ca11d14fc..e2d62d697b5d 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -17,6 +17,7 @@
#include <asm/e820.h>
#include <asm/setup.h>
#include <asm/acpi.h>
+#include <asm/numa.h>
#include <asm/xen/hypervisor.h>
#include <asm/xen/hypercall.h>
@@ -544,4 +545,7 @@ void __init xen_arch_setup(void)
disable_cpufreq();
WARN_ON(set_pm_idle_to_default());
fiddle_vdso();
+#ifdef CONFIG_NUMA
+ numa_off = 1;
+#endif
}