search for: memcg

...refcount; /* Use counter */ void (*ctor)(void *); /* Called on object slot creation */ + void (*decoder)(void *);/* Called on object slot leak detection */ struct list_head list; /* List of all slab caches on the system */ }; #endif @@ -132,6 +133,7 @@ struct kmem_cache * kmem_cache_create_memcg(struct mem_cgroup *, const char *, size_t, size_t, unsigned long, void (*)(void *), struct kmem_cache *); void kmem_cache_destroy(struct kmem_cache *); +void kmem_cache_destroy_decoder(struct kmem_cache *, void (*)(void *)); int kmem_cache_shrink(struct kmem_cache *); void kmem_cache_free(st...

Hi all, With this series of patches, you can determine the owners of any type of I/Os. I ported the previous version to linux-2.6.26-rc2-mm1. This makes dm-ioband -- I/O bandwidth controller -- be able to control the Block I/O bandwidths even when it accepts delayed write requests. Dm-ioband can find the owner cgroup of each request. It is also possible that OpenVz team and NEC Uchida-san team

Hi all, With this series of patches, you can determine the owners of any type of I/Os. I ported the previous version to linux-2.6.26-rc2-mm1. This makes dm-ioband -- I/O bandwidth controller -- be able to control the Block I/O bandwidths even when it accepts delayed write requests. Dm-ioband can find the owner cgroup of each request. It is also possible that OpenVz team and NEC Uchida-san team

Hi everyone, Here are new releases of bio-cgroup. Changes from the previous version are as follows: - Accurate dirty-page tracking Support migrating pages between bio-cgroups with minimum overhead, but I think such a situation is quite rare. - Fix a bug of swapcache page handling Sometimes, "bad page state" is occurred since the memory controller has temporarily changed the

Hi everyone, Here are new releases of bio-cgroup. Changes from the previous version are as follows: - Accurate dirty-page tracking Support migrating pages between bio-cgroups with minimum overhead, but I think such a situation is quite rare. - Fix a bug of swapcache page handling Sometimes, "bad page state" is occurred since the memory controller has temporarily changed the

Hi everyone, Here are new releases of bio-cgroup. Changes from the previous version are as follows: - Accurate dirty-page tracking Support migrating pages between bio-cgroups with minimum overhead, but I think such a situation is quite rare. - Fix a bug of swapcache page handling Sometimes, "bad page state" is occurred since the memory controller has temporarily changed the

...(void *); int inuse; /* Offset to metadata */ int align; /* Alignment */ int reserved; /* Reserved bytes at the end of slabs */ diff --git a/mm/slab_common.c b/mm/slab_common.c index 3f3cd97..39a0fb2 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -193,6 +193,7 @@ kmem_cache_create_memcg(struct mem_cgroup *memcg, const char *name, size_t size, s->object_size = s->size = size; s->align = calculate_alignment(flags, align, size); s->ctor = ctor; + s->decoder = NULL; if (memcg_register_cache(memcg, s, parent_cache)) { kmem_cache_free(kmem_cache, s); di...

...re dropping compound_mapcount to avoid - * false-negative page_mapped(). - */ - if (compound_mapcount(page) > 1 && !TestSetPageDoubleMap(page)) { - for (i = 0; i < HPAGE_PMD_NR; i++) + if (!pmd_migration) atomic_inc(&page[i]._mapcount); + pte_unmap(pte); } - lock_page_memcg(page); - if (atomic_add_negative(-1, compound_mapcount_ptr(page))) { - /* Last compound_mapcount is gone. */ - __dec_lruvec_page_state(page, NR_ANON_THPS); - if (TestClearPageDoubleMap(page)) { - /* No need in mapcount reference anymore */ + if (!pmd_migration) { + /* + * Set PG_double_map...

On Wed, May 10, 2023 at 02:54:18AM +0800, Yuanchu Xie wrote: > From: talumbau <talumbau at google.com> Please fix the name here. > > A single patch to be broken up into multiple patches. What does this mean? > - Add working set reporting structure. > - Add per-node and per-memcg interfaces for working set reporting. > - Implement working set backend for MGLRU. Please break it up to be reviewable, otherwise no one will review it. thanks, greg k-h

...d since DAX needs to detect when a page is not referenced by GUP and not no references at all. It applies cleanly to linux-5.9.0-rc8-mm1 plus my patch ("ext4/xfs: add page refcount helper") https://lore.kernel.org/linux-mm/20201007214925.11181-1-rcampbell at nvidia.com and also ("mm/memcg: fix device private memcg accounting") https://lore.kernel.org/linux-mm/20201009215952.2726-1-rcampbell at nvidia.com but doesn't really depend on them, just simple merge conflicts without them. This is for Andrew Morton after the 5.10.0-rc1 merge window closes. Changes in v2: Fixed the...

...device memory. For this we need a new to -use migrate_vma_setup(), migrate_vma_pages(), and migrate_vma_finalize() -helpers. +engine to perform copy from and to device memory. For this we need to use +migrate_vma_setup(), migrate_vma_pages(), and migrate_vma_finalize() helpers. Memory cgroup (memcg) and rss accounting diff --git a/mm/migrate.c b/mm/migrate.c index 993386cb53358d..0e78ebd720c0e4 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2622,10 +2622,9 @@ static void migrate_vma_unmap(struct migrate_vma *migrate) * successfully migrated, and which were not. Successfully migrated page...

I've recently been trying to track down the root cause of my server's persistent issue of thrashing horribly after being left inactive. It seems that the issue is likely my nightly backup schedule (using rsync) which traverses my entire 50GB home directory. I was surprised to find that rsync does not use fadvise to notify the kernel of its use-once data usage pattern. It looks like a

Hi all, This is a new release of blkio-cgroup v11. Changes: - The function cgroup_get_from_page() is added which determines to which cgroup a given page belongs. This function is introduced from Vivek's io-controller patch. Thanks Vivek. - Fix a type mismatch of the refcount of io_context. The refcount has been changed to atomic_long_t. This patch can be applied to 2.6.31-rc7. The

Hi all, This is a new release of blkio-cgroup v11. Changes: - The function cgroup_get_from_page() is added which determines to which cgroup a given page belongs. This function is introduced from Vivek's io-controller patch. Thanks Vivek. - Fix a type mismatch of the refcount of io_context. The refcount has been changed to atomic_long_t. This patch can be applied to 2.6.31-rc7. The

Hi all, This is a new release of blkio-cgroup v11. Changes: - The function cgroup_get_from_page() is added which determines to which cgroup a given page belongs. This function is introduced from Vivek's io-controller patch. Thanks Vivek. - Fix a type mismatch of the refcount of io_context. The refcount has been changed to atomic_long_t. This patch can be applied to 2.6.31-rc7. The

Hi all, This is a new release of blkio-cgroup v10. This release reduces IO tracking overhead and fixes an issue that could cause a deadlock since lock_page_cgroup() is no longer used. Thank you KAMEZAWA-san for your suggestions and pointing out the issue. This patch can be applied to 2.6.31-rc3-mmotm0716 and 2.6.31-rc4. The list of the patches: [PATCH 1/7] blkio-cgroup-v10: Introduction

Hi all, This is a new release of blkio-cgroup v10. This release reduces IO tracking overhead and fixes an issue that could cause a deadlock since lock_page_cgroup() is no longer used. Thank you KAMEZAWA-san for your suggestions and pointing out the issue. This patch can be applied to 2.6.31-rc3-mmotm0716 and 2.6.31-rc4. The list of the patches: [PATCH 1/7] blkio-cgroup-v10: Introduction

Hi all, This is a new release of blkio-cgroup v10. This release reduces IO tracking overhead and fixes an issue that could cause a deadlock since lock_page_cgroup() is no longer used. Thank you KAMEZAWA-san for your suggestions and pointing out the issue. This patch can be applied to 2.6.31-rc3-mmotm0716 and 2.6.31-rc4. The list of the patches: [PATCH 1/7] blkio-cgroup-v10: Introduction

Hi all, This is a new release of bio-cgroup which provides an IO tracking mechanism. The patches can be applied to the kernel 2.6.30-rc1 and you can also download them from the following site. http://people.valinux.co.jp/~ryov/bio-cgroup/ What's bio-cgroup all about? ============================ With this feature, you can determine the owners of any type of I/Os. This makes

Hi all, This is a new release of bio-cgroup which provides an IO tracking mechanism. The patches can be applied to the kernel 2.6.30-rc1 and you can also download them from the following site. http://people.valinux.co.jp/~ryov/bio-cgroup/ What's bio-cgroup all about? ============================ With this feature, you can determine the owners of any type of I/Os. This makes