The patch titled Subject: mm-cma-warn-if-freed-memory-is-still-in-use-fix has been added to the -mm tree. Its filename is mm-cma-warn-if-freed-memory-is-still-in-use-fix.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: David Rientjes <rientjes@xxxxxxxxxx> Subject: mm-cma-warn-if-freed-memory-is-still-in-use-fix Support sparsemem. (And prevent "count" overflow if nr_pages cannot fit in signed type.) Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx> Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> Cc: Michal Nazarewicz <mina86@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/page_alloc.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff -puN mm/page_alloc.c~mm-cma-warn-if-freed-memory-is-still-in-use-fix mm/page_alloc.c --- a/mm/page_alloc.c~mm-cma-warn-if-freed-memory-is-still-in-use-fix +++ a/mm/page_alloc.c @@ -5981,9 +5981,11 @@ done: void free_contig_range(unsigned long pfn, unsigned nr_pages) { - struct page *page = pfn_to_page(pfn); - int count = 0; - for (; nr_pages--; page++) { + unsigned int count = 0; + + for (; nr_pages--; pfn++) { + struct page *page = pfn_to_page(pfn); + count += page_count(page) != 1; __free_page(page); } _ Patches currently in -mm which might be from rientjes@xxxxxxxxxx are origin.patch irq-tsk-comm-is-an-array.patch memcg-make-it-possible-to-use-the-stock-for-more-than-one-page.patch memcg-reclaim-when-more-than-one-page-needed.patch memcg-change-defines-to-an-enum.patch memcg-kmem-accounting-basic-infrastructure.patch mm-add-a-__gfp_kmemcg-flag.patch memcg-kmem-controller-infrastructure.patch mm-allocate-kernel-pages-to-the-right-memcg.patch res_counter-return-amount-of-charges-after-res_counter_uncharge.patch memcg-kmem-accounting-lifecycle-management.patch memcg-use-static-branches-when-code-not-in-use.patch memcg-allow-a-memcg-with-kmem-charges-to-be-destructed.patch memcg-execute-the-whole-memcg-freeing-in-free_worker.patch fork-protect-architectures-where-thread_size-=-page_size-against-fork-bombs.patch memcg-add-documentation-about-the-kmem-controller.patch slab-slub-struct-memcg_params.patch slab-annotate-on-slab-caches-nodelist-locks.patch slab-slub-consider-a-memcg-parameter-in-kmem_create_cache.patch memcg-allocate-memory-for-memcg-caches-whenever-a-new-memcg-appears.patch memcg-infrastructure-to-match-an-allocation-to-the-right-cache.patch memcg-skip-memcg-kmem-allocations-in-specified-code-regions.patch slb-always-get-the-cache-from-its-page-in-kmem_cache_free.patch slb-allocate-objects-from-memcg-cache.patch memcg-destroy-memcg-caches.patch memcg-slb-track-all-the-memcg-children-of-a-kmem_cache.patch memcg-slb-shrink-dead-caches.patch memcg-aggregate-memcg-cache-values-in-slabinfo.patch slab-propagate-tunable-values.patch slub-slub-specific-propagation-changes.patch kmem-add-slab-specific-documentation-about-the-kmem-controller.patch memcg-add-comments-clarifying-aspects-of-cache-attribute-propagation.patch slub-drop-mutex-before-deleting-sysfs-entry.patch ksm-numa-awareness-sysfs-knob.patch linux-next.patch x86-convert-update_mmu_cache-and-update_mmu_cache_pmd-to-functions.patch x86-fix-the-argument-passed-to-sync_global_pgds.patch mm-mempolicy-introduce-spinlock-to-read-shared-policy-tree.patch mm-cma-warn-if-freed-memory-is-still-in-use-fix.patch mm-dmapoolc-fix-null-dev-in-dma_pool_create.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html