The patch titled
Subject: mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting-hack
has been added to the -mm tree. Its filename is
mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting-hack.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting-hack.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting-hack.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting-hack
dopey hack so I can test stuff
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff -puN include/linux/mm.h~mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting-hack include/linux/mm.h
--- a/include/linux/mm.h~mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting-hack
+++ a/include/linux/mm.h
@@ -435,7 +435,7 @@ static inline int page_mapcount(struct p
static inline int total_mapcount(struct page *page)
{
- int i, ret;
+ int ret;
VM_BUG_ON_PAGE(PageTail(page), page);
@@ -445,8 +445,14 @@ static inline int total_mapcount(struct
ret = compound_mapcount(page);
if (PageHuge(page))
return ret;
- for (i = 0; i < HPAGE_PMD_NR; i++)
- ret += atomic_read(&page[i]._mapcount) + 1;
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ {
+ int i;
+
+ for (i = 0; i < HPAGE_PMD_NR; i++)
+ ret += atomic_read(&page[i]._mapcount) + 1;
+ }
+#endif
if (PageDoubleMap(page))
ret -= HPAGE_PMD_NR;
return ret;
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
arch-alpha-kernel-systblss-remove-debug-check.patch
drivers-gpu-drm-i915-intel_spritec-fix-build.patch
drivers-gpu-drm-i915-intel_tvc-fix-build.patch
mm.patch
slub-optimize-bulk-slowpath-free-by-detached-freelist-fix.patch
uaccess-reimplement-probe_kernel_address-using-probe_kernel_read.patch
uaccess-reimplement-probe_kernel_address-using-probe_kernel_read-fix.patch
uaccess-reimplement-probe_kernel_address-using-probe_kernel_read-fix-fix.patch
mm-page_alloc-rename-__gfp_wait-to-__gfp_reclaim-fix.patch
mm-page_alloc-rename-__gfp_wait-to-__gfp_reclaim-checkpatch-fixes.patch
mm-page_alloc-only-enforce-watermarks-for-order-0-allocations-fix-fix.patch
mm-fix-declarations-of-nr-delta-and-nr_pagecache_reclaimable-fix.patch
mm-oom_kill-fix-the-wrong-task-mm-==-mm-checks-in-oom_kill_process-fix.patch
include-linux-mmzoneh-reflow-comment.patch
mm-fs-introduce-mapping_gfp_constraint-checkpatch-fixes.patch
mm-vmstatc-uninline-node_page_state.patch
mm-vmstatc-uninline-node_page_state-fix.patch
mm-cmac-suppress-warning.patch
memcg-fix-thresholds-for-32b-architectures-fix-fix.patch
kasan-various-fixes-in-documentation-checkpatch-fixes.patch
mm-slub-kasan-enable-user-tracking-by-default-with-kasan=y-fix.patch
zsmalloc-add-comments-for-inuse-to-zspage-v2-fix.patch
page-flags-define-pg_locked-behavior-on-compound-pages-fix.patch
mm-rework-mapcount-accounting-to-enable-4k-mapping-of-thps-fix.patch
mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting-hack.patch
mm-prepare-page_referenced-and-page_idle-to-new-thp-refcounting-checkpatch-fixes.patch
mm-increase-swap_cluster_max-to-batch-tlb-flushes-fix-fix.patch
include-linux-compiler-gcch-improve-__visible-documentation.patch
fs-jffs2-wbufc-remove-stray-semicolon.patch
lib-documentation-synchronize-%p-formatting-documentation-fix-fix.patch
rbtree-clarify-documentation-of-rbtree_postorder_for_each_entry_safe-fix.patch
dma-mapping-tidy-up-dma_parms-default-handling-fix.patch
panic-release-stale-console-lock-to-always-get-the-logbuf-printed-out-fix.patch
linux-next-rejects.patch
mm-page_alloc-rename-__gfp_wait-to-__gfp_reclaim-nvem-fix.patch
mm-page_alloc-rename-__gfp_wait-to-__gfp_reclaim-arm-fix.patch
mm-page_alloc-rename-__gfp_wait-to-__gfp_reclaim-arm-fix-fix.patch
net-ipv4-routec-prevent-oops.patch
remove-abs64.patch
remove-abs64-fix.patch
remove-abs64-fix-fix.patch
remove-abs64-fix-fix-fix.patch
do_shared_fault-check-that-mmap_sem-is-held.patch
kernel-forkc-export-kernel_thread-to-modules.patch
slab-leaks3-default-y.patch
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