Yisheng Xie 51d2967fe5 kmemleak: add scheduling point to kmemleak_scan() ... [ Upstream commit bde5f6bc68 ] kmemleak_scan() will scan struct page for each node and it can be really large and resulting in a soft lockup. We have seen a soft lockup when do scan while compile kernel: watchdog: BUG: soft lockup - CPU#53 stuck for 22s! [bash:10287] [...] Call Trace: kmemleak_scan+0x21a/0x4c0 kmemleak_write+0x312/0x350 full_proxy_write+0x5a/0xa0 __vfs_write+0x33/0x150 vfs_write+0xad/0x1a0 SyS_write+0x52/0xc0 do_syscall_64+0x61/0x1a0 entry_SYSCALL64_slow_path+0x25/0x25 Fix this by adding cond_resched every MAX_SCAN_SIZE. Link: http://lkml.kernel.org/r/1511439788-20099-1-git-send-email-xieyisheng1@huawei.com Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com> Suggested-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-02-03 17:04:29 +01:00
..
kasan	kasan: respect /proc/sys/kernel/traceoff_on_warning	2017-06-17 06:39:36 +02:00
backing-dev.c
balloon_compaction.c
bootmem.c
cleancache.c
cma_debug.c
cma.c	cma: fix calculation of aligned offset	2018-01-31 12:06:09 +01:00
cma.h
compaction.c	mm/compaction: pass only pageblock aligned range to pageblock_pfn_to_page	2018-01-17 09:35:26 +01:00
debug-pagealloc.c	mm, hwpoison: fixup "mm: check the return value of lookup_page_ext for all call sites"	2017-11-24 11:26:29 +01:00
debug.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c
frame_vector.c
frontswap.c
gup.c	mm: larger stack guard gap, between vmas	2017-06-26 07:13:11 +02:00
highmem.c
huge_memory.c	thp: fix MADV_DONTNEED vs. numa balancing race	2017-12-16 10:33:50 +01:00
hugetlb_cgroup.c
hugetlb.c
hwpoison-inject.c
init-mm.c
internal.h	mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries	2017-08-11 09:08:50 -07:00
interval_tree.c
Kconfig
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c	kmemleak: add scheduling point to kmemleak_scan()	2018-02-03 17:04:29 +01:00
ksm.c
list_lru.c	mm/list_lru.c: fix list_lru_count_node() to be race free	2017-07-21 07:44:56 +02:00
maccess.c
madvise.c	mm/madvise.c: fix madvise() infinite loop under special circumstances	2017-12-05 11:22:50 +01:00
Makefile
memblock.c	mm: consider memblock reservations for deferred memory initialization sizing	2017-06-14 13:16:26 +02:00
memcontrol.c	hwpoison, memcg: forcibly uncharge LRU pages	2018-01-31 12:06:09 +01:00
memory_hotplug.c
memory-failure.c	hwpoison, memcg: forcibly uncharge LRU pages	2018-01-31 12:06:09 +01:00
memory.c	mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries	2017-08-11 09:08:50 -07:00
mempolicy.c	mm/mempolicy: fix use after free when calling get_mempolicy	2017-08-24 17:02:35 -07:00
mempool.c	mm/mempool: avoid KASAN marking mempool poison checks as use-after-free	2017-08-12 19:29:09 -07:00
memtest.c
migrate.c	Sanitize 'move_pages()' permission checks	2017-08-24 17:02:36 -07:00
mincore.c
mlock.c	mlock: fix mlock count can not decrease in race condition	2017-06-07 12:06:01 +02:00
mm_init.c
mmap.c	mm/mmap.c: do not blow on PROT_NONE MAP_FIXED holes in the stack	2018-01-31 12:06:09 +01:00
mmu_context.c	mm/mmu_context, sched/core: Fix mmu_context.h assumption	2017-12-25 14:22:09 +01:00
mmu_notifier.c
mmzone.c
mprotect.c	mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries	2017-08-11 09:08:50 -07:00
mremap.c	mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries	2017-08-11 09:08:50 -07:00
msync.c
nobootmem.c
nommu.c
oom_kill.c
page_alloc.c	mm, page_alloc: fix potential false positive in __zone_watermark_ok	2018-01-31 12:06:09 +01:00
page_counter.c
page_ext.c	mm/page_ext.c: check if page_ext is not prepared	2017-11-24 08:32:25 +01:00
page_idle.c
page_io.c
page_isolation.c
page_owner.c	mm: check the return value of lookup_page_ext for all call sites	2017-11-24 08:32:25 +01:00
page-writeback.c	mm/page-writeback: fix dirty_ratelimit calculation	2018-01-17 09:35:27 +01:00
pagewalk.c	mm/pagewalk.c: report holes in hugetlb ranges	2017-11-24 08:32:25 +01:00
percpu-km.c
percpu-vm.c
percpu.c
pgtable-generic.c
process_vm_access.c
quicklist.c
readahead.c
rmap.c	mm/rmap: batched invalidations should use existing api	2017-12-25 14:22:09 +01:00
shmem.c
slab_common.c	slub: do not merge cache if slub_debug contains a never-merge flag	2017-10-21 17:09:05 +02:00
slab.c
slab.h
slob.c
slub.c	slub/memcg: cure the brainless abuse of sysfs attributes	2017-06-07 12:06:01 +02:00
sparse-vmemmap.c
sparse.c
swap_cgroup.c	mm, swap_cgroup: reschedule when neeed in swap_cgroup_swapoff()	2017-07-05 14:37:15 +02:00
swap_state.c
swap.c
swapfile.c
truncate.c	fs: add i_blocksize()	2017-06-14 13:16:24 +02:00
userfaultfd.c
util.c
vmacache.c
vmalloc.c
vmpressure.c
vmscan.c	mm: fix classzone_idx underflow in shrink_zones()	2017-07-15 11:57:44 +02:00
vmstat.c	proc: much faster /proc/vmstat	2018-01-10 09:27:14 +01:00
workingset.c
zbud.c
zpool.c
zsmalloc.c
zswap.c	zswap: don't param_set_charp while holding spinlock	2018-01-17 09:35:27 +01:00