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-rw-r--r--MAINTAINERS2
-rw-r--r--arch/arm/include/asm/cacheflush.h4
-rw-r--r--arch/arm/include/asm/smp_twd.h17
-rw-r--r--arch/arm/include/asm/tlbflush.h29
-rw-r--r--arch/arm/kernel/smp_twd.c17
-rw-r--r--arch/arm/lib/clear_user.S1
-rw-r--r--arch/arm/lib/copy_to_user.S1
-rw-r--r--arch/arm/mach-davinci/da830.c2
-rw-r--r--arch/arm/mm/cache-v6.S17
-rw-r--r--arch/arm/mm/cache-v7.S4
-rw-r--r--arch/arm/mm/nommu.c13
-rw-r--r--arch/arm/mm/tlb-v7.S8
-rw-r--r--arch/microblaze/include/asm/uaccess.h87
-rw-r--r--arch/microblaze/kernel/cpu/cache.c3
-rw-r--r--arch/microblaze/kernel/entry-nommu.S2
-rw-r--r--arch/microblaze/kernel/microblaze_ksyms.c11
-rw-r--r--arch/microblaze/kernel/module.c2
-rw-r--r--arch/microblaze/mm/init.c1
-rw-r--r--arch/microblaze/mm/pgtable.c1
-rw-r--r--arch/microblaze/pci/pci-common.c2
-rw-r--r--arch/x86/include/asm/k8.h5
-rw-r--r--arch/x86/kernel/cpu/intel_cacheinfo.c4
-rw-r--r--arch/x86/kernel/process.c12
-rw-r--r--arch/x86/mm/srat_64.c3
-rw-r--r--arch/x86/pci/mrst.c4
-rw-r--r--drivers/vhost/vhost.c7
-rw-r--r--drivers/watchdog/Kconfig2
-rw-r--r--drivers/watchdog/mpcore_wdt.c21
-rw-r--r--fs/notify/inotify/inotify_fsnotify.c2
-rw-r--r--fs/notify/inotify/inotify_user.c16
-rw-r--r--kernel/profile.c4
-rw-r--r--security/min_addr.c2
-rw-r--r--tools/perf/builtin-record.c3
33 files changed, 235 insertions, 74 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index d5b0b1b6dc5..d329b053a71 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5492,7 +5492,7 @@ S: Maintained
F: drivers/mmc/host/tmio_mmc.*
TMPFS (SHMEM FILESYSTEM)
-M: Hugh Dickins <hugh.dickins@tiscali.co.uk>
+M: Hugh Dickins <hughd@google.com>
L: linux-mm@kvack.org
S: Maintained
F: include/linux/shmem_fs.h
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 0d08d4170b6..4656a24058d 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -371,6 +371,10 @@ static inline void __flush_icache_all(void)
#ifdef CONFIG_ARM_ERRATA_411920
extern void v6_icache_inval_all(void);
v6_icache_inval_all();
+#elif defined(CONFIG_SMP) && __LINUX_ARM_ARCH__ >= 7
+ asm("mcr p15, 0, %0, c7, c1, 0 @ invalidate I-cache inner shareable\n"
+ :
+ : "r" (0));
#else
asm("mcr p15, 0, %0, c7, c5, 0 @ invalidate I-cache\n"
:
diff --git a/arch/arm/include/asm/smp_twd.h b/arch/arm/include/asm/smp_twd.h
index 7be0978b262..634f357be6b 100644
--- a/arch/arm/include/asm/smp_twd.h
+++ b/arch/arm/include/asm/smp_twd.h
@@ -1,6 +1,23 @@
#ifndef __ASMARM_SMP_TWD_H
#define __ASMARM_SMP_TWD_H
+#define TWD_TIMER_LOAD 0x00
+#define TWD_TIMER_COUNTER 0x04
+#define TWD_TIMER_CONTROL 0x08
+#define TWD_TIMER_INTSTAT 0x0C
+
+#define TWD_WDOG_LOAD 0x20
+#define TWD_WDOG_COUNTER 0x24
+#define TWD_WDOG_CONTROL 0x28
+#define TWD_WDOG_INTSTAT 0x2C
+#define TWD_WDOG_RESETSTAT 0x30
+#define TWD_WDOG_DISABLE 0x34
+
+#define TWD_TIMER_CONTROL_ENABLE (1 << 0)
+#define TWD_TIMER_CONTROL_ONESHOT (0 << 1)
+#define TWD_TIMER_CONTROL_PERIODIC (1 << 1)
+#define TWD_TIMER_CONTROL_IT_ENABLE (1 << 2)
+
struct clock_event_device;
extern void __iomem *twd_base;
diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index e085e2c545e..bd863d8608c 100644
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -46,6 +46,9 @@
#define TLB_V7_UIS_FULL (1 << 20)
#define TLB_V7_UIS_ASID (1 << 21)
+/* Inner Shareable BTB operation (ARMv7 MP extensions) */
+#define TLB_V7_IS_BTB (1 << 22)
+
#define TLB_L2CLEAN_FR (1 << 29) /* Feroceon */
#define TLB_DCLEAN (1 << 30)
#define TLB_WB (1 << 31)
@@ -183,7 +186,7 @@
#endif
#ifdef CONFIG_SMP
-#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \
+#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_V7_IS_BTB | \
TLB_V7_UIS_FULL | TLB_V7_UIS_PAGE | TLB_V7_UIS_ASID)
#else
#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \
@@ -339,6 +342,12 @@ static inline void local_flush_tlb_all(void)
dsb();
isb();
}
+ if (tlb_flag(TLB_V7_IS_BTB)) {
+ /* flush the branch target cache */
+ asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
+ dsb();
+ isb();
+ }
}
static inline void local_flush_tlb_mm(struct mm_struct *mm)
@@ -376,6 +385,12 @@ static inline void local_flush_tlb_mm(struct mm_struct *mm)
asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
dsb();
}
+ if (tlb_flag(TLB_V7_IS_BTB)) {
+ /* flush the branch target cache */
+ asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
+ dsb();
+ isb();
+ }
}
static inline void
@@ -416,6 +431,12 @@ local_flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
dsb();
}
+ if (tlb_flag(TLB_V7_IS_BTB)) {
+ /* flush the branch target cache */
+ asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
+ dsb();
+ isb();
+ }
}
static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
@@ -454,6 +475,12 @@ static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
dsb();
isb();
}
+ if (tlb_flag(TLB_V7_IS_BTB)) {
+ /* flush the branch target cache */
+ asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
+ dsb();
+ isb();
+ }
}
/*
diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
index ea02a7b1c24..7c5f0c024db 100644
--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
@@ -21,23 +21,6 @@
#include <asm/smp_twd.h>
#include <asm/hardware/gic.h>
-#define TWD_TIMER_LOAD 0x00
-#define TWD_TIMER_COUNTER 0x04
-#define TWD_TIMER_CONTROL 0x08
-#define TWD_TIMER_INTSTAT 0x0C
-
-#define TWD_WDOG_LOAD 0x20
-#define TWD_WDOG_COUNTER 0x24
-#define TWD_WDOG_CONTROL 0x28
-#define TWD_WDOG_INTSTAT 0x2C
-#define TWD_WDOG_RESETSTAT 0x30
-#define TWD_WDOG_DISABLE 0x34
-
-#define TWD_TIMER_CONTROL_ENABLE (1 << 0)
-#define TWD_TIMER_CONTROL_ONESHOT (0 << 1)
-#define TWD_TIMER_CONTROL_PERIODIC (1 << 1)
-#define TWD_TIMER_CONTROL_IT_ENABLE (1 << 2)
-
/* set up by the platform code */
void __iomem *twd_base;
diff --git a/arch/arm/lib/clear_user.S b/arch/arm/lib/clear_user.S
index 5e3f99620c0..14a0d988c82 100644
--- a/arch/arm/lib/clear_user.S
+++ b/arch/arm/lib/clear_user.S
@@ -45,6 +45,7 @@ USER( strnebt r2, [r0])
mov r0, #0
ldmfd sp!, {r1, pc}
ENDPROC(__clear_user)
+ENDPROC(__clear_user_std)
.pushsection .fixup,"ax"
.align 0
diff --git a/arch/arm/lib/copy_to_user.S b/arch/arm/lib/copy_to_user.S
index 027b69bdbad..d066df686e1 100644
--- a/arch/arm/lib/copy_to_user.S
+++ b/arch/arm/lib/copy_to_user.S
@@ -93,6 +93,7 @@ WEAK(__copy_to_user)
#include "copy_template.S"
ENDPROC(__copy_to_user)
+ENDPROC(__copy_to_user_std)
.pushsection .fixup,"ax"
.align 0
diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index 122e61a9f50..e8cb982f5e8 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -410,7 +410,7 @@ static struct clk_lookup da830_clks[] = {
CLK("davinci-mcasp.0", NULL, &mcasp0_clk),
CLK("davinci-mcasp.1", NULL, &mcasp1_clk),
CLK("davinci-mcasp.2", NULL, &mcasp2_clk),
- CLK("musb_hdrc", NULL, &usb20_clk),
+ CLK(NULL, "usb20", &usb20_clk),
CLK(NULL, "aemif", &aemif_clk),
CLK(NULL, "aintc", &aintc_clk),
CLK(NULL, "secu_mgr", &secu_mgr_clk),
diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S
index 9d89c67a1cc..e46ecd84713 100644
--- a/arch/arm/mm/cache-v6.S
+++ b/arch/arm/mm/cache-v6.S
@@ -211,6 +211,9 @@ v6_dma_inv_range:
mcrne p15, 0, r1, c7, c15, 1 @ clean & invalidate unified line
#endif
1:
+#ifdef CONFIG_SMP
+ str r0, [r0] @ write for ownership
+#endif
#ifdef HARVARD_CACHE
mcr p15, 0, r0, c7, c6, 1 @ invalidate D line
#else
@@ -231,6 +234,9 @@ v6_dma_inv_range:
v6_dma_clean_range:
bic r0, r0, #D_CACHE_LINE_SIZE - 1
1:
+#ifdef CONFIG_SMP
+ ldr r2, [r0] @ read for ownership
+#endif
#ifdef HARVARD_CACHE
mcr p15, 0, r0, c7, c10, 1 @ clean D line
#else
@@ -251,6 +257,10 @@ v6_dma_clean_range:
ENTRY(v6_dma_flush_range)
bic r0, r0, #D_CACHE_LINE_SIZE - 1
1:
+#ifdef CONFIG_SMP
+ ldr r2, [r0] @ read for ownership
+ str r2, [r0] @ write for ownership
+#endif
#ifdef HARVARD_CACHE
mcr p15, 0, r0, c7, c14, 1 @ clean & invalidate D line
#else
@@ -273,7 +283,9 @@ ENTRY(v6_dma_map_area)
add r1, r1, r0
teq r2, #DMA_FROM_DEVICE
beq v6_dma_inv_range
- b v6_dma_clean_range
+ teq r2, #DMA_TO_DEVICE
+ beq v6_dma_clean_range
+ b v6_dma_flush_range
ENDPROC(v6_dma_map_area)
/*
@@ -283,9 +295,6 @@ ENDPROC(v6_dma_map_area)
* - dir - DMA direction
*/
ENTRY(v6_dma_unmap_area)
- add r1, r1, r0
- teq r2, #DMA_TO_DEVICE
- bne v6_dma_inv_range
mov pc, lr
ENDPROC(v6_dma_unmap_area)
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index bcd64f26587..06a90dcfc60 100644
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -167,7 +167,11 @@ ENTRY(v7_coherent_user_range)
cmp r0, r1
blo 1b
mov r0, #0
+#ifdef CONFIG_SMP
+ mcr p15, 0, r0, c7, c1, 6 @ invalidate BTB Inner Shareable
+#else
mcr p15, 0, r0, c7, c5, 6 @ invalidate BTB
+#endif
dsb
isb
mov pc, lr
diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index 9bfeb6b9509..33b327379f0 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -65,6 +65,15 @@ void flush_dcache_page(struct page *page)
}
EXPORT_SYMBOL(flush_dcache_page);
+void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
+ unsigned long uaddr, void *dst, const void *src,
+ unsigned long len)
+{
+ memcpy(dst, src, len);
+ if (vma->vm_flags & VM_EXEC)
+ __cpuc_coherent_user_range(uaddr, uaddr + len);
+}
+
void __iomem *__arm_ioremap_pfn(unsigned long pfn, unsigned long offset,
size_t size, unsigned int mtype)
{
@@ -87,8 +96,8 @@ void __iomem *__arm_ioremap(unsigned long phys_addr, size_t size,
}
EXPORT_SYMBOL(__arm_ioremap);
-void __iomem *__arm_ioremap(unsigned long phys_addr, size_t size,
- unsigned int mtype, void *caller)
+void __iomem *__arm_ioremap_caller(unsigned long phys_addr, size_t size,
+ unsigned int mtype, void *caller)
{
return __arm_ioremap(phys_addr, size, mtype);
}
diff --git a/arch/arm/mm/tlb-v7.S b/arch/arm/mm/tlb-v7.S
index 0cb1848bd87..f3f288a9546 100644
--- a/arch/arm/mm/tlb-v7.S
+++ b/arch/arm/mm/tlb-v7.S
@@ -50,7 +50,11 @@ ENTRY(v7wbi_flush_user_tlb_range)
cmp r0, r1
blo 1b
mov ip, #0
+#ifdef CONFIG_SMP
+ mcr p15, 0, ip, c7, c1, 6 @ flush BTAC/BTB Inner Shareable
+#else
mcr p15, 0, ip, c7, c5, 6 @ flush BTAC/BTB
+#endif
dsb
mov pc, lr
ENDPROC(v7wbi_flush_user_tlb_range)
@@ -79,7 +83,11 @@ ENTRY(v7wbi_flush_kern_tlb_range)
cmp r0, r1
blo 1b
mov r2, #0
+#ifdef CONFIG_SMP
+ mcr p15, 0, r2, c7, c1, 6 @ flush BTAC/BTB Inner Shareable
+#else
mcr p15, 0, r2, c7, c5, 6 @ flush BTAC/BTB
+#endif
dsb
isb
mov pc, lr
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
index 446bec29b14..26460d15b33 100644
--- a/arch/microblaze/include/asm/uaccess.h
+++ b/arch/microblaze/include/asm/uaccess.h
@@ -182,6 +182,39 @@ extern long __user_bad(void);
* Returns zero on success, or -EFAULT on error.
* On error, the variable @x is set to zero.
*/
+#define get_user(x, ptr) \
+ __get_user_check((x), (ptr), sizeof(*(ptr)))
+
+#define __get_user_check(x, ptr, size) \
+({ \
+ unsigned long __gu_val = 0; \
+ const typeof(*(ptr)) __user *__gu_addr = (ptr); \
+ int __gu_err = 0; \
+ \
+ if (access_ok(VERIFY_READ, __gu_addr, size)) { \
+ switch (size) { \
+ case 1: \
+ __get_user_asm("lbu", __gu_addr, __gu_val, \
+ __gu_err); \
+ break; \
+ case 2: \
+ __get_user_asm("lhu", __gu_addr, __gu_val, \
+ __gu_err); \
+ break; \
+ case 4: \
+ __get_user_asm("lw", __gu_addr, __gu_val, \
+ __gu_err); \
+ break; \
+ default: \
+ __gu_err = __user_bad(); \
+ break; \
+ } \
+ } else { \
+ __gu_err = -EFAULT; \
+ } \
+ x = (typeof(*(ptr)))__gu_val; \
+ __gu_err; \
+})
#define __get_user(x, ptr) \
({ \
@@ -206,12 +239,6 @@ extern long __user_bad(void);
})
-#define get_user(x, ptr) \
-({ \
- access_ok(VERIFY_READ, (ptr), sizeof(*(ptr))) \
- ? __get_user((x), (ptr)) : -EFAULT; \
-})
-
#define __put_user_asm(insn, __gu_ptr, __gu_val, __gu_err) \
({ \
__asm__ __volatile__ ( \
@@ -266,6 +293,42 @@ extern long __user_bad(void);
*
* Returns zero on success, or -EFAULT on error.
*/
+#define put_user(x, ptr) \
+ __put_user_check((x), (ptr), sizeof(*(ptr)))
+
+#define __put_user_check(x, ptr, size) \
+({ \
+ typeof(*(ptr)) __pu_val; \
+ typeof(*(ptr)) __user *__pu_addr = (ptr); \
+ int __pu_err = 0; \
+ \
+ __pu_val = (x); \
+ if (access_ok(VERIFY_WRITE, __pu_addr, size)) { \
+ switch (size) { \
+ case 1: \
+ __put_user_asm("sb", __pu_addr, __pu_val, \
+ __pu_err); \
+ break; \
+ case 2: \
+ __put_user_asm("sh", __pu_addr, __pu_val, \
+ __pu_err); \
+ break; \
+ case 4: \
+ __put_user_asm("sw", __pu_addr, __pu_val, \
+ __pu_err); \
+ break; \
+ case 8: \
+ __put_user_asm_8(__pu_addr, __pu_val, __pu_err);\
+ break; \
+ default: \
+ __pu_err = __user_bad(); \
+ break; \
+ } \
+ } else { \
+ __pu_err = -EFAULT; \
+ } \
+ __pu_err; \
+})
#define __put_user(x, ptr) \
({ \
@@ -290,18 +353,6 @@ extern long __user_bad(void);
__gu_err; \
})
-#ifndef CONFIG_MMU
-
-#define put_user(x, ptr) __put_user((x), (ptr))
-
-#else /* CONFIG_MMU */
-
-#define put_user(x, ptr) \
-({ \
- access_ok(VERIFY_WRITE, (ptr), sizeof(*(ptr))) \
- ? __put_user((x), (ptr)) : -EFAULT; \
-})
-#endif /* CONFIG_MMU */
/* copy_to_from_user */
#define __copy_from_user(to, from, n) \
diff --git a/arch/microblaze/kernel/cpu/cache.c b/arch/microblaze/kernel/cpu/cache.c
index 21c3a92394d..109876e8d64 100644
--- a/arch/microblaze/kernel/cpu/cache.c
+++ b/arch/microblaze/kernel/cpu/cache.c
@@ -137,8 +137,9 @@ do { \
do { \
int step = -line_length; \
int align = ~(line_length - 1); \
+ int count; \
end = ((end & align) == end) ? end - line_length : end & align; \
- int count = end - start; \
+ count = end - start; \
WARN_ON(count < 0); \
\
__asm__ __volatile__ (" 1: " #op " %0, %1; \
diff --git a/arch/microblaze/kernel/entry-nommu.S b/arch/microblaze/kernel/entry-nommu.S
index 391d6197fc3..8cc18cd2cce 100644
--- a/arch/microblaze/kernel/entry-nommu.S
+++ b/arch/microblaze/kernel/entry-nommu.S
@@ -476,6 +476,8 @@ ENTRY(ret_from_fork)
nop
work_pending:
+ enable_irq
+
andi r11, r19, _TIF_NEED_RESCHED
beqi r11, 1f
bralid r15, schedule
diff --git a/arch/microblaze/kernel/microblaze_ksyms.c b/arch/microblaze/kernel/microblaze_ksyms.c
index bc4dcb7d386..ff85f771803 100644
--- a/arch/microblaze/kernel/microblaze_ksyms.c
+++ b/arch/microblaze/kernel/microblaze_ksyms.c
@@ -52,3 +52,14 @@ EXPORT_SYMBOL_GPL(_ebss);
extern void _mcount(void);
EXPORT_SYMBOL(_mcount);
#endif
+
+/*
+ * Assembly functions that may be used (directly or indirectly) by modules
+ */
+EXPORT_SYMBOL(__copy_tofrom_user);
+EXPORT_SYMBOL(__strncpy_user);
+
+#ifdef CONFIG_OPT_LIB_ASM
+EXPORT_SYMBOL(memcpy);
+EXPORT_SYMBOL(memmove);
+#endif
diff --git a/arch/microblaze/kernel/module.c b/arch/microblaze/kernel/module.c
index cbecf110dc3..0e73f660654 100644
--- a/arch/microblaze/kernel/module.c
+++ b/arch/microblaze/kernel/module.c
@@ -16,6 +16,7 @@
#include <linux/string.h>
#include <asm/pgtable.h>
+#include <asm/cacheflush.h>
void *module_alloc(unsigned long size)
{
@@ -151,6 +152,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
struct module *module)
{
+ flush_dcache();
return 0;
}
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index f42c2dde8b1..cca3579d426 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -47,6 +47,7 @@ unsigned long memory_start;
EXPORT_SYMBOL(memory_start);
unsigned long memory_end; /* due to mm/nommu.c */
unsigned long memory_size;
+EXPORT_SYMBOL(memory_size);
/*
* paging_init() sets up the page tables - in fact we've already done this.
diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
index 784557fb28c..59bf2335a4c 100644
--- a/arch/microblaze/mm/pgtable.c
+++ b/arch/microblaze/mm/pgtable.c
@@ -42,6 +42,7 @@
unsigned long ioremap_base;
unsigned long ioremap_bot;
+EXPORT_SYMBOL(ioremap_bot);
/* The maximum lowmem defaults to 768Mb, but this can be configured to
* another value.
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 01c8c97c15b..9cb782b8e03 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -1507,7 +1507,7 @@ void pcibios_finish_adding_to_bus(struct pci_bus *bus)
pci_bus_add_devices(bus);
/* Fixup EEH */
- eeh_add_device_tree_late(bus);
+ /* eeh_add_device_tree_late(bus); */
}
EXPORT_SYMBOL_GPL(pcibios_finish_adding_to_bus);
diff --git a/arch/x86/include/asm/k8.h b/arch/x86/include/asm/k8.h
index f70e60071fe..af00bd1d208 100644
--- a/arch/x86/include/asm/k8.h
+++ b/arch/x86/include/asm/k8.h
@@ -16,11 +16,16 @@ extern int k8_numa_init(unsigned long start_pfn, unsigned long end_pfn);
extern int k8_scan_nodes(void);
#ifdef CONFIG_K8_NB
+extern int num_k8_northbridges;
+
static inline struct pci_dev *node_to_k8_nb_misc(int node)
{
return (node < num_k8_northbridges) ? k8_northbridges[node] : NULL;
}
+
#else
+#define num_k8_northbridges 0
+
static inline struct pci_dev *node_to_k8_nb_misc(int node)
{
return NULL;
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index b3eeb66c0a5..95962a93f99 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -340,6 +340,10 @@ amd_check_l3_disable(int index, struct _cpuid4_info_regs *this_leaf)
(boot_cpu_data.x86_mask < 0x1)))
return;
+ /* not in virtualized environments */
+ if (num_k8_northbridges == 0)
+ return;
+
this_leaf->can_disable = true;
this_leaf->l3_indices = amd_calc_l3_indices();
}
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 28ad9f4d8b9..0415c3ef91b 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -546,11 +546,13 @@ static int __cpuinit check_c1e_idle(const struct cpuinfo_x86 *c)
* check OSVW bit for CPUs that are not affected
* by erratum #400
*/
- rdmsrl(MSR_AMD64_OSVW_ID_LENGTH, val);
- if (val >= 2) {
- rdmsrl(MSR_AMD64_OSVW_STATUS, val);
- if (!(val & BIT(1)))
- goto no_c1e_idle;
+ if (cpu_has(c, X86_FEATURE_OSVW)) {
+ rdmsrl(MSR_AMD64_OSVW_ID_LENGTH, val);
+ if (val >= 2) {
+ rdmsrl(MSR_AMD64_OSVW_STATUS, val);
+ if (!(val & BIT(1)))
+ goto no_c1e_idle;
+ }
}
return 1;
}
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 28c68762648..38512d0c474 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -461,7 +461,8 @@ void __init acpi_fake_nodes(const struct bootnode *fake_nodes, int num_nodes)
* node, it must now point to the fake node ID.
*/
for (j = 0; j < MAX_LOCAL_APIC; j++)
- if (apicid_to_node[j] == nid)
+ if (apicid_to_node[j] == nid &&
+ fake_apicid_to_node[j] == NUMA_NO_NODE)
fake_apicid_to_node[j] = i;
}
for (i = 0; i < num_nodes; i++)
diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/mrst.c
index 8bf2fcb88d0..1cdc02cf8fa 100644
--- a/arch/x86/pci/mrst.c
+++ b/arch/x86/pci/mrst.c
@@ -247,6 +247,10 @@ static void __devinit pci_fixed_bar_fixup(struct pci_dev *dev)
u32 size;
int i;
+ /* Must have extended configuration space */
+ if (dev->cfg_size < PCIE_CAP_OFFSET + 4)
+ return;
+
/* Fixup the BAR sizes for fixed BAR devices and make them unmoveable */
offset = fixed_bar_cap(dev->bus, dev->devfn);
if (!offset || PCI_DEVFN(2, 0) == dev->devfn ||
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index e69d238c5af..49fa953aaf6 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1035,7 +1035,12 @@ int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len)
/* This actually signals the guest, using eventfd. */
void vhost_signal(struct vhost_dev *dev, struct vhost_virtqueue *vq)
{
- __u16 flags = 0;
+ __u16 flags;
+ /* Flush out used index updates. This is paired
+ * with the barrier that the Guest executes when enabling
+ * interrupts. */
+ smp_mb();
+
if (get_user(flags, &vq->avail->flags)) {
vq_err(vq, "Failed to get flags");
return;
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 0bf5020d0d3..b87ba23442d 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -175,7 +175,7 @@ config SA1100_WATCHDOG
config MPCORE_WATCHDOG
tristate "MPcore watchdog"
- depends on ARM_MPCORE_PLATFORM && LOCAL_TIMERS
+ depends on HAVE_ARM_TWD
help
Watchdog timer embedded into the MPcore system.
diff --git a/drivers/watchdog/mpcore_wdt.c b/drivers/watchdog/mpcore_wdt.c
index 016c6a791ca..b8ec7aca3c8 100644
--- a/drivers/watchdog/mpcore_wdt.c
+++ b/drivers/watchdog/mpcore_wdt.c
@@ -31,8 +31,9 @@
#include <linux/platform_device.h>
#include <linux/uaccess.h>
#include <linux/slab.h>
+#include <linux/io.h>
-#include <asm/hardware/arm_twd.h>
+#include <asm/smp_twd.h>
struct mpcore_wdt {
unsigned long timer_alive;
@@ -44,7 +45,7 @@ struct mpcore_wdt {
};
static struct platform_device *mpcore_wdt_dev;
-extern unsigned int mpcore_timer_rate;
+static DEFINE_SPINLOCK(wdt_lock);
#define TIMER_MARGIN 60
static int mpcore_margin = TIMER_MARGIN;
@@ -94,13 +95,15 @@ static irqreturn_t mpcore_wdt_fire(int irq, void *arg)
*/
static void mpcore_wdt_keepalive(struct mpcore_wdt *wdt)
{
- unsigned int count;
+ unsigned long count;
+ spin_lock(&wdt_lock);
/* Assume prescale is set to 256 */
- count = (mpcore_timer_rate / 256) * mpcore_margin;
+ count = __raw_readl(wdt->base + TWD_WDOG_COUNTER);
+ count = (0xFFFFFFFFU - count) * (HZ / 5);
+ count = (count / 256) * mpcore_margin;
/* Reload the counter */
- spin_lock(&wdt_lock);
writel(count + wdt->perturb, wdt->base + TWD_WDOG_LOAD);
wdt->perturb = wdt->perturb ? 0 : 1;
spin_unlock(&wdt_lock);
@@ -119,7 +122,6 @@ static void mpcore_wdt_start(struct mpcore_wdt *wdt)
{
dev_printk(KERN_INFO, wdt->dev, "enabling watchdog.\n");
- spin_lock(&wdt_lock);
/* This loads the count register but does NOT start the count yet */
mpcore_wdt_keepalive(wdt);
@@ -130,7 +132,6 @@ static void mpcore_wdt_start(struct mpcore_wdt *wdt)
/* Enable watchdog - prescale=256, watchdog mode=1, enable=1 */
writel(0x0000FF09, wdt->base + TWD_WDOG_CONTROL);
}
- spin_unlock(&wdt_lock);
}
static int mpcore_wdt_set_heartbeat(int t)
@@ -360,7 +361,7 @@ static int __devinit mpcore_wdt_probe(struct platform_device *dev)
mpcore_wdt_miscdev.parent = &dev->dev;
ret = misc_register(&mpcore_wdt_miscdev);
if (ret) {
- dev_printk(KERN_ERR, _dev,
+ dev_printk(KERN_ERR, wdt->dev,
"cannot register miscdev on minor=%d (err=%d)\n",
WATCHDOG_MINOR, ret);
goto err_misc;
@@ -369,13 +370,13 @@ static int __devinit mpcore_wdt_probe(struct platform_device *dev)
ret = request_irq(wdt->irq, mpcore_wdt_fire, IRQF_DISABLED,
"mpcore_wdt", wdt);
if (ret) {
- dev_printk(KERN_ERR, _dev,
+ dev_printk(KERN_ERR, wdt->dev,
"cannot register IRQ%d for watchdog\n", wdt->irq);
goto err_irq;
}
mpcore_wdt_stop(wdt);
- platform_set_drvdata(&dev->dev, wdt);
+ platform_set_drvdata(dev, wdt);
mpcore_wdt_dev = dev;
return 0;
diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index 1afb0a10229..e27960cd76a 100644
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -28,6 +28,7 @@
#include <linux/path.h> /* struct path */
#include <linux/slab.h> /* kmem_* */
#include <linux/types.h>
+#include <linux/sched.h>
#include "inotify.h"
@@ -146,6 +147,7 @@ static void inotify_free_group_priv(struct fsnotify_group *group)
idr_for_each(&group->inotify_data.idr, idr_callback, group);
idr_remove_all(&group->inotify_data.idr);
idr_destroy(&group->inotify_data.idr);
+ free_uid(group->inotify_data.user);
}
void inotify_free_event_priv(struct fsnotify_event_private_data *fsn_event_priv)
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 472cdf29ef8..e46ca685b9b 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -546,21 +546,24 @@ retry:
if (unlikely(!idr_pre_get(&group->inotify_data.idr, GFP_KERNEL)))
goto out_err;
+ /* we are putting the mark on the idr, take a reference */
+ fsnotify_get_mark(&tmp_ientry->fsn_entry);
+
spin_lock(&group->inotify_data.idr_lock);
ret = idr_get_new_above(&group->inotify_data.idr, &tmp_ientry->fsn_entry,
group->inotify_data.last_wd+1,
&tmp_ientry->wd);
spin_unlock(&group->inotify_data.idr_lock);
if (ret) {
+ /* we didn't get on the idr, drop the idr reference */
+ fsnotify_put_mark(&tmp_ientry->fsn_entry);
+
/* idr was out of memory allocate and try again */
if (ret == -EAGAIN)
goto retry;
goto out_err;
}
- /* we put the mark on the idr, take a reference */
- fsnotify_get_mark(&tmp_ientry->fsn_entry);
-
/* we are on the idr, now get on the inode */
ret = fsnotify_add_mark(&tmp_ientry->fsn_entry, group, inode);
if (ret) {
@@ -578,16 +581,13 @@ retry:
/* return the watch descriptor for this new entry */
ret = tmp_ientry->wd;
- /* match the ref from fsnotify_init_markentry() */
- fsnotify_put_mark(&tmp_ientry->fsn_entry);
-
/* if this mark added a new event update the group mask */
if (mask & ~group->mask)
fsnotify_recalc_group_mask(group);
out_err:
- if (ret < 0)
- kmem_cache_free(inotify_inode_mark_cachep, tmp_ientry);
+ /* match the ref from fsnotify_init_markentry() */
+ fsnotify_put_mark(&tmp_ientry->fsn_entry);
return ret;
}
diff --git a/kernel/profile.c b/kernel/profile.c
index a55d3a367ae..dfadc5b729f 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -127,8 +127,10 @@ int __ref profile_init(void)
return 0;
prof_buffer = vmalloc(buffer_bytes);
- if (prof_buffer)
+ if (prof_buffer) {
+ memset(prof_buffer, 0, buffer_bytes);
return 0;
+ }
free_cpumask_var(prof_cpu_mask);
return -ENOMEM;
diff --git a/security/min_addr.c b/security/min_addr.c
index e86f297522b..f728728f193 100644
--- a/security/min_addr.c
+++ b/security/min_addr.c
@@ -33,7 +33,7 @@ int mmap_min_addr_handler(struct ctl_table *table, int write,
{
int ret;
- if (!capable(CAP_SYS_RAWIO))
+ if (write && !capable(CAP_SYS_RAWIO))
return -EPERM;
ret = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 3b8b6387c47..f1411e9cdf4 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -563,6 +563,9 @@ static int __cmd_record(int argc, const char **argv)
err = event__synthesize_kernel_mmap(process_synthesized_event,
session, "_text");
+ if (err < 0)
+ err = event__synthesize_kernel_mmap(process_synthesized_event,
+ session, "_stext");
if (err < 0) {
pr_err("Couldn't record kernel reference relocation symbol.\n");
return err;