The patch titled
Subject: linux-next-rejects
has been removed from the -mm tree. Its filename was
linux-next-rejects.patch
This patch was dropped because it is obsolete
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: linux-next-rejects
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/huge_memory.c | 13 ++++++++++++-
mm/mprotect.c | 32 ++++++++++++++++++++++++++------
2 files changed, 38 insertions(+), 7 deletions(-)
diff -puN mm/huge_memory.c~linux-next-rejects mm/huge_memory.c
--- a/mm/huge_memory.c~linux-next-rejects
+++ a/mm/huge_memory.c
@@ -16,6 +16,7 @@
#include <linux/mm_inline.h>
#include <linux/kthread.h>
#include <linux/khugepaged.h>
+#include <linux/migrate.h>
#include <linux/freezer.h>
#include <linux/mman.h>
#include <linux/pagemap.h>
@@ -1462,7 +1463,17 @@ int change_huge_pmd(struct vm_area_struc
if (__pmd_trans_huge_lock(pmd, vma) == 1) {
pmd_t entry;
entry = pmdp_get_and_clear(mm, addr, pmd);
- entry = pmd_modify(entry, newprot);
+ if (!prot_numa)
+ entry = pmd_modify(entry, newprot);
+ else {
+ struct page *page = pmd_page(*pmd);
+
+ /* only check non-shared pages */
+ if (page_mapcount(page) == 1 &&
+ !pmd_numa(*pmd)) {
+ entry = pmd_mknuma(entry);
+ }
+ }
BUG_ON(pmd_write(entry));
set_pmd_at(mm, addr, pmd, entry);
spin_unlock(&vma->vm_mm->page_table_lock);
diff -puN mm/mprotect.c~linux-next-rejects mm/mprotect.c
--- a/mm/mprotect.c~linux-next-rejects
+++ a/mm/mprotect.c
@@ -127,20 +127,39 @@ static inline unsigned long change_pmd_r
if (pmd_trans_huge(*pmd)) {
if (next - addr != HPAGE_PMD_SIZE)
split_huge_page_pmd(vma, addr, pmd);
- else if (change_huge_pmd(vma, pmd, addr, newprot))
+ else if (change_huge_pmd(vma, pmd, addr, newprot, prot_numa)) {
+ pages += HPAGE_PMD_NR;
continue;
+ }
/* fall through */
}
if (pmd_none_or_clear_bad(pmd))
continue;
- change_pte_range(vma->vm_mm, pmd, addr, next, newprot,
- dirty_accountable);
+ pages += change_pte_range(vma, pmd, addr, next, newprot,
+ dirty_accountable, prot_numa, &all_same_node);
+
+#ifdef CONFIG_NUMA_BALANCING
+ /*
+ * If we are changing protections for NUMA hinting faults then
+ * set pmd_numa if the examined pages were all on the same
+ * node. This allows a regular PMD to be handled as one fault
+ * and effectively batches the taking of the PTL
+ */
+ if (prot_numa && all_same_node && 0) {
+ struct mm_struct *mm = vma->vm_mm;
+
+ spin_lock(&mm->page_table_lock);
+ set_pmd_at(mm, addr & PMD_MASK, pmd, pmd_mknuma(*pmd));
+ spin_unlock(&mm->page_table_lock);
+ }
+#endif
} while (pmd++, addr = next, addr != end);
+ return pages;
}
-static inline void change_pud_range(struct vm_area_struct *vma, pgd_t *pgd,
+static inline unsigned long change_pud_range(struct vm_area_struct *vma, pgd_t *pgd,
unsigned long addr, unsigned long end, pgprot_t newprot,
- int dirty_accountable)
+ int dirty_accountable, int prot_numa)
{
pud_t *pud;
unsigned long next;
@@ -163,6 +182,7 @@ static void change_protection(struct vm_
pgd_t *pgd;
unsigned long next;
unsigned long start = addr;
+ unsigned long pages = 0;
BUG_ON(addr >= end);
pgd = pgd_offset(mm, addr);
@@ -182,7 +202,7 @@ static void change_protection(struct vm_
return pages;
}
-unsigned long change_protection(struct vm_area_struct *vma, unsigned long start,
+static unsigned long change_protection_range(struct vm_area_struct *vma,
unsigned long end, pgprot_t newprot,
int dirty_accountable, int prot_numa)
{
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
linux-next.patch
linux-next-rejects-git-rejects.patch
i-need-old-gcc.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
arch-x86-platform-iris-irisc-register-a-platform-device-and-a-platform-driver.patch
arch-x86-tools-insn_sanityc-identify-source-of-messages.patch
fb-rework-locking-to-fix-lock-ordering-on-takeover-fix.patch
fb-rework-locking-to-fix-lock-ordering-on-takeover-fix-2.patch
irq-tsk-comm-is-an-array.patch
block-remove-deadlock-in-disk_clear_events-fix.patch
block-prevent-race-cleanup-fix.patch
mm.patch
memcg-kmem-accounting-basic-infrastructure-fix.patch
slub-slub-specific-propagation-changes-fix.patch
mm-mprotectc-coding-style-cleanups.patch
mm-hugetlb-create-hugetlb-cgroup-file-in-hugetlb_init-fix.patch
drop_caches-add-some-documentation-and-info-messsge-checkpatch-fixes.patch
swap-add-a-simple-detector-for-inappropriate-swapin-readahead-fix.patch
memcg-debugging-facility-to-access-dangling-memcgs-fix.patch
scripts-pnmtologo-fix-for-plain-pbm-checkpatch-fixes.patch
lseek-the-whence-argument-is-called-whence.patch
drivers-video-backlight-lp855x_blc-use-generic-pwm-functions-fix.patch
backlight-add-of_find_backlight_by_node-function-fix.patch
backlight-88pm860x_bl-remove-an-unnecessary-line-continuation-fix.patch
drivers-firmware-dmi_scanc-check-dmi-version-when-get-system-uuid-fix.patch
drivers-firmware-dmi_scanc-fetch-dmi-version-from-smbios-if-it-exists-checkpatch-fixes.patch
binfmt_elf-fix-corner-case-kfree-of-uninitialized-data-checkpatch-fixes.patch
binfmt_elfc-use-get_random_int-to-fix-entropy-depleting.patch
rtc-avoid-calling-platform_device_put-twice-in-test_init-fix.patch
hfsplus-add-osx-prefix-for-handling-namespace-of-mac-os-x-extended-attributes-checkpatch-fixes.patch
hfsplus-rework-processing-of-hfs_btree_write-returned-error-fix.patch
core_pattern-set-core-helpers-root-and-namespace-to-crashing-process.patch
procfs-add-vmflags-field-in-smaps-output-v4.patch
procfs-add-vmflags-field-in-smaps-output-v4-fix.patch
ipc-add-sysctl-to-specify-desired-next-object-id-checkpatch-fixes.patch
ipc-message-queue-receive-cleanup-checkpatch-fixes.patch
ipc-convert-prepare_copy-from-macro-to-function-fix.patch
dma-debug-new-interfaces-to-debug-dma-mapping-errors-fix-fix.patch
docs-add-documentation-about-proc-pid-fdinfo-fd-output-fix.patch
fs-notify-add-procfs-fdinfo-helper-v7-fix.patch
scatterlist-dont-bug-when-we-can-trivially-return-a-proper-error-fix.patch
journal_add_journal_head-debug.patch
kernel-forkc-export-kernel_thread-to-modules.patch
mutex-subsystem-synchro-test-module-fix.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
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