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authorAnton Arapov <anton@redhat.com>2012-10-29 11:15:37 +0100
committerAnton Arapov <anton@redhat.com>2012-10-29 11:15:37 +0100
commit7d558cd9c7b18e4b16953265aa0da45e63f3b968 (patch)
tree7135d5a810768c9c619346282ee9cfdf1765e225 /arch/avr32
parent985ef6b2108ed28ffd5f6630e1e0fce2e2a775f2 (diff)
downloadkernel-uprobes-f17.tar.gz
kernel-uprobes-f17.tar.xz
kernel-uprobes-f17.zip
fedora kernel: cd394142aac30b5c751f25b517572e2448695641v3.6.3-2f17
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/avr32')
-rw-r--r--arch/avr32/Kconfig1
-rw-r--r--arch/avr32/boards/atstk1000/atstk1002.c2
-rw-r--r--arch/avr32/include/asm/kmap_types.h24
-rw-r--r--arch/avr32/include/asm/unistd.h1
-rw-r--r--arch/avr32/mm/fault.c33
5 files changed, 29 insertions, 32 deletions
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 71d38c76726..5ade51c8a87 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -12,6 +12,7 @@ config AVR32
select HARDIRQS_SW_RESEND
select GENERIC_IRQ_SHOW
select ARCH_HAVE_CUSTOM_GPIO_H
+ select ARCH_WANT_IPC_PARSE_VERSION
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_CLOCKEVENTS
help
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index dc526332148..6c80aba7bf9 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -97,7 +97,7 @@ static struct atmel_nand_data atstk1006_nand_data __initdata = {
.enable_pin = GPIO_PIN_PB(29),
.ecc_mode = NAND_ECC_SOFT,
.parts = nand_partitions,
- .num_parts = ARRAY_SIZE(num_partitions),
+ .num_parts = ARRAY_SIZE(nand_partitions),
};
#endif
diff --git a/arch/avr32/include/asm/kmap_types.h b/arch/avr32/include/asm/kmap_types.h
index b7f5c687010..479330b8979 100644
--- a/arch/avr32/include/asm/kmap_types.h
+++ b/arch/avr32/include/asm/kmap_types.h
@@ -2,29 +2,9 @@
#define __ASM_AVR32_KMAP_TYPES_H
#ifdef CONFIG_DEBUG_HIGHMEM
-# define D(n) __KM_FENCE_##n ,
+# define KM_TYPE_NR 29
#else
-# define D(n)
+# define KM_TYPE_NR 14
#endif
-enum km_type {
-D(0) KM_BOUNCE_READ,
-D(1) KM_SKB_SUNRPC_DATA,
-D(2) KM_SKB_DATA_SOFTIRQ,
-D(3) KM_USER0,
-D(4) KM_USER1,
-D(5) KM_BIO_SRC_IRQ,
-D(6) KM_BIO_DST_IRQ,
-D(7) KM_PTE0,
-D(8) KM_PTE1,
-D(9) KM_PTE2,
-D(10) KM_IRQ0,
-D(11) KM_IRQ1,
-D(12) KM_SOFTIRQ0,
-D(13) KM_SOFTIRQ1,
-D(14) KM_TYPE_NR
-};
-
-#undef D
-
#endif /* __ASM_AVR32_KMAP_TYPES_H */
diff --git a/arch/avr32/include/asm/unistd.h b/arch/avr32/include/asm/unistd.h
index f714544e556..1358e366f4b 100644
--- a/arch/avr32/include/asm/unistd.h
+++ b/arch/avr32/include/asm/unistd.h
@@ -318,7 +318,6 @@
/* SMP stuff */
#define __IGNORE_getcpu
-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
index f7040a1e399..b92e6095861 100644
--- a/arch/avr32/mm/fault.c
+++ b/arch/avr32/mm/fault.c
@@ -61,10 +61,10 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs)
const struct exception_table_entry *fixup;
unsigned long address;
unsigned long page;
- int writeaccess;
long signr;
int code;
int fault;
+ unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
if (notify_page_fault(regs, ecr))
return;
@@ -86,6 +86,7 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs)
local_irq_enable();
+retry:
down_read(&mm->mmap_sem);
vma = find_vma(mm, address);
@@ -104,7 +105,6 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs)
*/
good_area:
code = SEGV_ACCERR;
- writeaccess = 0;
switch (ecr) {
case ECR_PROTECTION_X:
@@ -121,7 +121,7 @@ good_area:
case ECR_TLB_MISS_W:
if (!(vma->vm_flags & VM_WRITE))
goto bad_area;
- writeaccess = 1;
+ flags |= FAULT_FLAG_WRITE;
break;
default:
panic("Unhandled case %lu in do_page_fault!", ecr);
@@ -132,7 +132,11 @@ good_area:
* sure we exit gracefully rather than endlessly redo the
* fault.
*/
- fault = handle_mm_fault(mm, vma, address, writeaccess ? FAULT_FLAG_WRITE : 0);
+ fault = handle_mm_fault(mm, vma, address, flags);
+
+ if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+ return;
+
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
@@ -140,10 +144,23 @@ good_area:
goto do_sigbus;
BUG();
}
- if (fault & VM_FAULT_MAJOR)
- tsk->maj_flt++;
- else
- tsk->min_flt++;
+
+ if (flags & FAULT_FLAG_ALLOW_RETRY) {
+ if (fault & VM_FAULT_MAJOR)
+ tsk->maj_flt++;
+ else
+ tsk->min_flt++;
+ if (fault & VM_FAULT_RETRY) {
+ flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+ /*
+ * No need to up_read(&mm->mmap_sem) as we would have
+ * already released it in __lock_page_or_retry() in
+ * mm/filemap.c.
+ */
+ goto retry;
+ }
+ }
up_read(&mm->mmap_sem);
return;