search for: split_page

...ages); > + order = MIN(desired_order, order); > + do { > + pages[i] = alloc_pages_node(node, GFP_KERNEL, order); > + if (!pages[i]) { > + if (!order) { > + goto err_free_allocations; > + } > + --order; > + } > + } while (!pages[i]); > + > + split_page(pages[i], order); > + counts[i] = 1 << order; > + num_pages -= counts[i]; > + i++; So here we believe we will never overrun the 2048 bytes we 'allocated' for 'counts' above. While 'if (num_pages > HV_DEPOSIT_MAX)' presumably guarantees that, this is not...

...int ret = put_page_testzero_nocheck(page); if (!ret) page_make_volatile(page, 1); return ret; @@ -356,6 +360,7 @@ static inline void init_page_count(struc } void put_page(struct page *page); +void put_page_nocheck(struct page *page); void put_pages_list(struct list_head *pages); void split_page(struct page *page, unsigned int order); diff -urpN linux-2.6/include/linux/pagemap.h linux-2.6-patched/include/linux/pagemap.h --- linux-2.6/include/linux/pagemap.h 2006-09-01 12:50:24.000000000 +0200 +++ linux-2.6-patched/include/linux/pagemap.h 2006-09-01 12:50:25.000000000 +0200 @@ -49,6 +49,11...

...int ret = put_page_testzero_nocheck(page); if (!ret) page_make_volatile(page, 1); return ret; @@ -356,6 +360,7 @@ static inline void init_page_count(struc } void put_page(struct page *page); +void put_page_nocheck(struct page *page); void put_pages_list(struct list_head *pages); void split_page(struct page *page, unsigned int order); diff -urpN linux-2.6/include/linux/pagemap.h linux-2.6-patched/include/linux/pagemap.h --- linux-2.6/include/linux/pagemap.h 2006-09-01 12:50:24.000000000 +0200 +++ linux-2.6-patched/include/linux/pagemap.h 2006-09-01 12:50:25.000000000 +0200 @@ -49,6 +49,11...

VMware balloon enhancements: adding support for memory compaction, memory shrinker (to prevent OOM) and splitting of refused pages to prevent recurring inflations. Patches 1-2: Support for compaction Patch 3: Support for memory shrinker - disabled by default Patch 4: Split refused pages to improve performance v3->v4: * "get around to" comment [Michael] * Put list_add under page lock

VMware balloon enhancements: adding support for memory compaction, memory shrinker (to prevent OOM) and splitting of refused pages to prevent recurring inflations. Patches 1-2: Support for compaction Patch 3: Support for memory shrinker - disabled by default Patch 4: Split refused pages to improve performance v3->v4: * "get around to" comment [Michael] * Put list_add under page lock

VMware balloon enhancements: adding support for memory compaction, memory shrinker (to prevent OOM) and splitting of refused pages to prevent recurring inflations. Patches 1-2: Support for compaction Patch 3: Support for memory shrinker - disabled by default Patch 4: Split refused pages to improve performance v2->v3: * Fixing wrong argument type (int->size_t) [Michael] * Fixing a comment

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

After way to many months here is the fifth version of the guest page hinting patches. Compared to version four a few improvements have been added: - Avoid page_host_discards() calls outside of page-states.h - The discard list is now implemented via the page_free_discarded hook and architecture specific code. - PG_state_change page flag has been replaced with architecture specficic

After way to many months here is the fifth version of the guest page hinting patches. Compared to version four a few improvements have been added: - Avoid page_host_discards() calls outside of page-states.h - The discard list is now implemented via the page_free_discarded hook and architecture specific code. - PG_state_change page flag has been replaced with architecture specficic