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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-09 16:23:15 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-09 16:23:15 +0900
commit9e2d8656f5e8aa214e66b462680cf86b210b74a8 (patch)
treef67d62e896cedf75599ea45f9ecf9999c6ad24cd /arch/tile
parent1ea4f4f8405cc1ceec23f2d261bc3775785e6712 (diff)
parent9e695d2ecc8451cc2c1603d60b5c8e7f5581923a (diff)
downloadblackbird-op-linux-9e2d8656f5e8aa214e66b462680cf86b210b74a8.tar.gz
blackbird-op-linux-9e2d8656f5e8aa214e66b462680cf86b210b74a8.zip
Merge branch 'akpm' (Andrew's patch-bomb)
Merge patches from Andrew Morton: "A few misc things and very nearly all of the MM tree. A tremendous amount of stuff (again), including a significant rbtree library rework." * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (160 commits) sparc64: Support transparent huge pages. mm: thp: Use more portable PMD clearing sequenece in zap_huge_pmd(). mm: Add and use update_mmu_cache_pmd() in transparent huge page code. sparc64: Document PGD and PMD layout. sparc64: Eliminate PTE table memory wastage. sparc64: Halve the size of PTE tables sparc64: Only support 4MB huge pages and 8KB base pages. memory-hotplug: suppress "Trying to free nonexistent resource <XXXXXXXXXXXXXXXX-YYYYYYYYYYYYYYYY>" warning mm: memcg: clean up mm_match_cgroup() signature mm: document PageHuge somewhat mm: use %pK for /proc/vmallocinfo mm, thp: fix mlock statistics mm, thp: fix mapped pages avoiding unevictable list on mlock memory-hotplug: update memory block's state and notify userspace memory-hotplug: preparation to notify memory block's state at memory hot remove mm: avoid section mismatch warning for memblock_type_name make GFP_NOTRACK definition unconditional cma: decrease cc.nr_migratepages after reclaiming pagelist CMA: migrate mlocked pages kpageflags: fix wrong KPF_THP on non-huge compound pages ...
Diffstat (limited to 'arch/tile')
-rw-r--r--arch/tile/Kconfig3
-rw-r--r--arch/tile/include/asm/hugetlb.h4
-rw-r--r--arch/tile/mm/elf.c19
-rw-r--r--arch/tile/mm/fault.c1
4 files changed, 15 insertions, 12 deletions
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index c9a3c1fe7297..dc46490adca0 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -7,12 +7,15 @@ config TILE
select HAVE_DMA_API_DEBUG
select HAVE_KVM if !TILEGX
select GENERIC_FIND_FIRST_BIT
+ select SYSCTL_EXCEPTION_TRACE
select USE_GENERIC_SMP_HELPERS
select CC_OPTIMIZE_FOR_SIZE
+ select HAVE_DEBUG_KMEMLEAK
select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_PROBE
select GENERIC_PENDING_IRQ if SMP
select GENERIC_IRQ_SHOW
+ select HAVE_DEBUG_BUGVERBOSE
select HAVE_SYSCALL_WRAPPERS if TILEGX
select SYS_HYPERVISOR
select ARCH_HAVE_NMI_SAFE_CMPXCHG
diff --git a/arch/tile/include/asm/hugetlb.h b/arch/tile/include/asm/hugetlb.h
index b2042380a5aa..0f885af2b621 100644
--- a/arch/tile/include/asm/hugetlb.h
+++ b/arch/tile/include/asm/hugetlb.h
@@ -106,6 +106,10 @@ static inline void arch_release_hugepage(struct page *page)
{
}
+static inline void arch_clear_hugepage_flags(struct page *page)
+{
+}
+
#ifdef CONFIG_HUGETLB_SUPER_PAGES
static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
struct page *page, int writable)
diff --git a/arch/tile/mm/elf.c b/arch/tile/mm/elf.c
index 758b6038c2b7..3cfa98bf9125 100644
--- a/arch/tile/mm/elf.c
+++ b/arch/tile/mm/elf.c
@@ -36,19 +36,14 @@ static void sim_notify_exec(const char *binary_name)
} while (c);
}
-static int notify_exec(void)
+static int notify_exec(struct mm_struct *mm)
{
int retval = 0; /* failure */
- struct vm_area_struct *vma = current->mm->mmap;
- while (vma) {
- if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file)
- break;
- vma = vma->vm_next;
- }
- if (vma) {
+
+ if (mm->exe_file) {
char *buf = (char *) __get_free_page(GFP_KERNEL);
if (buf) {
- char *path = d_path(&vma->vm_file->f_path,
+ char *path = d_path(&mm->exe_file->f_path,
buf, PAGE_SIZE);
if (!IS_ERR(path)) {
sim_notify_exec(path);
@@ -106,16 +101,16 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
unsigned long vdso_base;
int retval = 0;
+ down_write(&mm->mmap_sem);
+
/*
* Notify the simulator that an exec just occurred.
* If we can't find the filename of the mapping, just use
* whatever was passed as the linux_binprm filename.
*/
- if (!notify_exec())
+ if (!notify_exec(mm))
sim_notify_exec(bprm->filename);
- down_write(&mm->mmap_sem);
-
/*
* MAYWRITE to allow gdb to COW and set breakpoints
*/
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index 84ce7abbf5af..fe811fa5f1b9 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -454,6 +454,7 @@ good_area:
tsk->min_flt++;
if (fault & VM_FAULT_RETRY) {
flags &= ~FAULT_FLAG_ALLOW_RETRY;
+ flags |= FAULT_FLAG_TRIED;
/*
* No need to up_read(&mm->mmap_sem) as we would
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