Dmitry Vyukov 68fd814a33 kasan: resched in quarantine_remove_cache() ... We see reported stalls/lockups in quarantine_remove_cache() on machines with large amounts of RAM. quarantine_remove_cache() needs to scan whole quarantine in order to take out all objects belonging to the cache. Quarantine is currently 1/32-th of RAM, e.g. on a machine with 256GB of memory that will be 8GB. Moreover quarantine scanning is a walk over uncached linked list, which is slow. Add cond_resched() after scanning of each non-empty batch of objects. Batches are specifically kept of reasonable size for quarantine_put(). On a machine with 256GB of RAM we should have ~512 non-empty batches, each with 16MB of objects. Link: http://lkml.kernel.org/r/20170308154239.25440-1-dvyukov@google.com Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Greg Thelen <gthelen@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-03-09 17:01:10 -08:00
..
kasan	kasan: resched in quarantine_remove_cache()	2017-03-09 17:01:10 -08:00
backing-dev.c	mm/backing-dev.c: use rb_entry()	2017-02-22 16:41:30 -08:00
balloon_compaction.c
bootmem.c	mm/bootmem.c: cosmetic improvement of code readability	2017-02-22 16:41:29 -08:00
cleancache.c
cma.c	mm: cma: print allocation failure reason and bitmap status	2017-02-24 17:46:55 -08:00
cma.h
cma_debug.c	mm: cma_alloc: allow to specify GFP mask	2017-02-24 17:46:55 -08:00
compaction.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
debug.c	mm, debug: print raw struct page data in __dump_page()	2016-12-12 18:55:08 -08:00
debug_page_ref.c
dmapool.c	lib/vsprintf.c: remove %Z support	2017-02-27 18:43:47 -08:00
early_ioremap.c
fadvise.c	mm: fadvise: avoid expensive remote LRU cache draining after FADV_DONTNEED	2016-12-20 09:48:46 -08:00
failslab.c
filemap.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
frame_vector.c
frontswap.c
gup.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
highmem.c
huge_memory.c	mm/vmstats: add thp_split_pud event for clarity	2017-03-09 17:01:10 -08:00
hugetlb.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
hugetlb_cgroup.c
hwpoison-inject.c
init-mm.c	mm: Add a user_ns owner to mm_struct and fix ptrace permission checks	2016-11-22 11:49:48 -06:00
internal.h	mm, rmap: check all VMAs that PTE-mapped THP can be part of	2017-02-24 17:46:55 -08:00
interval_tree.c
Kconfig	mm: THP page cache support for ppc64	2016-12-12 18:55:08 -08:00
Kconfig.debug	mm: add arch-independent testcases for RODATA	2017-02-27 18:43:48 -08:00
khugepaged.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/coredump.h>	2017-03-02 08:42:28 +01:00
kmemcheck.c
kmemleak-test.c
kmemleak.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
ksm.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/coredump.h>	2017-03-02 08:42:28 +01:00
list_lru.c
maccess.c
madvise.c	userfaultfd: non-cooperative: userfaultfd_remove revalidate vma in MADV_DONTNEED	2017-03-09 17:01:10 -08:00
Makefile	mm: add arch-independent testcases for RODATA	2017-02-27 18:43:48 -08:00
memblock.c	mm/memblock.c: fix memblock_next_valid_pfn()	2017-03-09 17:01:10 -08:00
memcontrol.c	mm: do not call mem_cgroup_free() from within mem_cgroup_alloc()	2017-03-09 17:01:10 -08:00
memory-failure.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
memory.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
memory_hotplug.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
mempolicy.c	sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
mempool.c
memtest.c
migrate.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
mincore.c	mm: remove shmem_mapping() shmem_zero_setup() duplicates	2017-02-24 17:46:56 -08:00
mlock.c	thp: fix another corner case of munlock() vs. THPs	2017-03-09 17:01:10 -08:00
mm_init.c
mmap.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-02 15:20:00 -08:00
mmu_context.c	sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
mmu_notifier.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
mmzone.c	mm/mmzone.c: swap likely to unlikely as code logic is different for next_zones_zonelist()	2017-02-22 16:41:29 -08:00
mprotect.c	mm/autonuma: let architecture override how the write bit should be stashed in a protnone pte.	2017-02-24 17:46:56 -08:00
mremap.c	userfaultfd: non-cooperative: add event for memory unmaps	2017-02-24 17:46:55 -08:00
msync.c
nobootmem.c
nommu.c	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
oom_kill.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
page-writeback.c	sched/headers: Prepare for the reduction of <linux/sched.h>'s signal API dependency	2017-03-02 08:42:37 +01:00
page_alloc.c	mm, page_alloc: Add missing check for memory holes	2017-03-08 11:10:10 -08:00
page_counter.c
page_ext.c
page_idle.c	mm: fix handling PTE-mapped THPs in page_idle_clear_pte_refs()	2017-02-24 17:46:55 -08:00
page_io.c
page_isolation.c	mm, page_alloc: avoid page_to_pfn() when merging buddies	2017-02-22 16:41:27 -08:00
page_owner.c
page_poison.c
page_vma_mapped.c	mm: convert page_mapped_in_vma() to use page_vma_mapped_walk()	2017-02-24 17:46:55 -08:00
pagewalk.c	mm, x86: add support for PUD-sized transparent hugepages	2017-02-24 17:46:54 -08:00
percpu-km.c
percpu-vm.c
percpu.c	scripts/spelling.txt: add "followings" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
pgtable-generic.c	mm, x86: add support for PUD-sized transparent hugepages	2017-02-24 17:46:54 -08:00
process_vm_access.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
quicklist.c
readahead.c	mm: don't cap request size based on read-ahead setting	2016-12-12 18:55:08 -08:00
rmap.c	rmap: fix NULL-pointer dereference on THP munlocking	2017-03-09 17:01:10 -08:00
rodata_test.c	mm: add arch-independent testcases for RODATA	2017-02-27 18:43:48 -08:00
shmem.c	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
slab.c	sched/headers: Prepare to move kstack_end() from <linux/sched.h> to <linux/sched/task_stack.h>	2017-03-02 08:42:39 +01:00
slab.h	slab: remove synchronous synchronize_sched() from memcg cache deactivation path	2017-02-22 16:41:27 -08:00
slab_common.c	kasan: drain quarantine of memcg slab objects	2017-02-24 17:46:56 -08:00
slob.c	slab: introduce __kmemcg_cache_deactivate()	2017-02-22 16:41:27 -08:00
slub.c	slub: make sysfs directories for memcg sub-caches optional	2017-02-22 16:41:27 -08:00
sparse-vmemmap.c
sparse.c	mm/memory_hotplug: set magic number to page->freelist instead of page->lru.next	2017-02-22 16:41:29 -08:00
swap.c	mm: vmscan: move dirty pages out of the way until they're flushed	2017-02-24 17:46:54 -08:00
swap_cgroup.c
swap_slots.c	mm/swap: skip readahead only when swap slot cache is enabled	2017-02-22 16:41:30 -08:00
swap_state.c	mm/swap: skip readahead only when swap slot cache is enabled	2017-02-22 16:41:30 -08:00
swapfile.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
truncate.c	fs: add i_blocksize()	2017-02-27 18:43:46 -08:00
usercopy.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
userfaultfd.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
util.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
vmacache.c	sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
vmalloc.c	sched/headers: Move task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h>	2017-03-03 01:43:37 +01:00
vmpressure.c	mm: vmpressure: fix sending wrong events on underflow	2017-02-24 17:46:56 -08:00
vmscan.c	sched/headers: Prepare to move the memalloc_noio_*() APIs to <linux/sched/mm.h>	2017-03-02 08:42:33 +01:00
vmstat.c	mm/vmstats: add thp_split_pud event for clarity	2017-03-09 17:01:10 -08:00
workingset.c	Merge branch 'idr-4.11' of git://git.infradead.org/users/willy/linux-dax	2017-02-28 20:29:41 -08:00
z3fold.c	z3fold: add kref refcounting	2017-02-24 17:46:54 -08:00
zbud.c
zpool.c
zsmalloc.c	sched/headers: Prepare to remove the <linux/magic.h> include from <linux/sched/task_stack.h>	2017-03-02 08:42:40 +01:00
zswap.c	zswap: don't param_set_charp while holding spinlock	2017-02-27 18:43:45 -08:00