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Vegard Nossum 98c42d9452 kmemleak: don't hang if user disables scanning early 
If the user tries to disable automatic scanning early in the boot
process using e.g.:

  echo scan=off > /sys/kernel/debug/kmemleak

then this command will hang until SECS_FIRST_SCAN (= 60) seconds have
elapsed, even though the system is fully initialised.

We can fix this using interruptible sleep and checking if we're supposed
to stop whenever we wake up (like the rest of the code does).

Link: http://lkml.kernel.org/r/1468835005-2873-1-git-send-email-vegard.nossum@oracle.com
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-07-28 16:07:41 -07:00
..
kasan
kasan/quarantine: fix bugs on qlist_move_cache()
2016-07-15 14:54:27 +09:00
backing-dev.c
mm, vmscan: move LRU lists to node
2016-07-28 16:07:41 -07:00
balloon_compaction.c
mm: balloon: use general non-lru movable page feature
2016-07-26 16:19:19 -07:00
bootmem.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
cleancache.c
cleancache: constify cleancache_ops structure
2016-01-27 09:09:57 -05:00
cma_debug.c
mm/cma_debug: correct size input to bitmap function
2015-07-17 16:39:54 -07:00
cma.c
mm/cma: silence warnings due to max() usage
2016-05-27 14:49:37 -07:00
cma.h
mm: cma: mark cma_bitmap_maxno() inline in header
2015-08-14 15:56:32 -07:00
compaction.c
mm: remove reclaim and compaction retry approximations
2016-07-28 16:07:41 -07:00
debug_page_ref.c
mm/page_ref: add tracepoint to track down page reference manipulation
2016-03-17 15:09:34 -07:00
debug.c
mm: introduce page reference manipulation functions
2016-03-17 15:09:34 -07:00
dmapool.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
early_ioremap.c
mm/early_ioremap: use offset_in_page macro
2015-11-05 19:34:48 -08:00
fadvise.c
mm/fadvise.c: do not discard partial pages with POSIX_FADV_DONTNEED
2016-06-09 14:23:11 -07:00
failslab.c
mm: fault-inject take over bootstrap kmem_cache check
2016-03-15 16:55:16 -07:00
filemap.c
mm: move most file-based accounting to the node
2016-07-28 16:07:41 -07:00
frame_vector.c
mm/gup: Switch all callers of get_user_pages() to not pass tsk/mm
2016-02-16 10:11:12 +01:00
frontswap.c
mm, frontswap: convert frontswap_enabled to static key
2016-07-26 16:19:19 -07:00
gup.c
thp: file pages support for split_huge_page()
2016-07-26 16:19:19 -07:00
highmem.c
mm/highmem: make nr_free_highpages() handles all highmem zones by itself
2016-05-19 19:12:14 -07:00
huge_memory.c
mm, THP: clean up return value of madvise_free_huge_pmd
2016-07-28 16:07:41 -07:00
hugetlb_cgroup.c
mm, hugetlb_cgroup: round limit_in_bytes down to hugepage size
2016-05-20 17:58:30 -07:00
hugetlb.c
Merge branch 'akpm' (patches from Andrew)
2016-07-26 19:55:54 -07:00
hwpoison-inject.c
hwpoison: use page_cgroup_ino for filtering by memcg
2015-09-10 13:29:01 -07:00
init-mm.c
…
internal.h
mm, page_alloc: remove fair zone allocation policy
2016-07-28 16:07:41 -07:00
interval_tree.c
mm: replace vma->sharead.linear with vma->shared
2015-02-10 14:30:31 -08:00
Kconfig
mm: CONFIG_ZONE_DEVICE stop depending on CONFIG_EXPERT
2016-07-28 16:07:41 -07:00
Kconfig.debug
mm/page_ref: add tracepoint to track down page reference manipulation
2016-03-17 15:09:34 -07:00
khugepaged.c
mm: convert zone_reclaim to node_reclaim
2016-07-28 16:07:41 -07:00
kmemcheck.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
kmemleak-test.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
kmemleak.c
kmemleak: don't hang if user disables scanning early
2016-07-28 16:07:41 -07:00
ksm.c
mm: do not pass mm_struct into handle_mm_fault
2016-07-26 16:19:19 -07:00
list_lru.c
mm: memcontrol: move kmem accounting code to CONFIG_MEMCG
2016-01-20 17:09:18 -08:00
maccess.c
x86: remove more uaccess_32.h complexity
2016-05-22 17:21:27 -07:00
madvise.c
mm: make mmap_sem for write waits killable for mm syscalls
2016-05-23 17:04:14 -07:00
Makefile
thp: extract khugepaged from mm/huge_memory.c
2016-07-26 16:19:19 -07:00
memblock.c
mm/memblock.c: add new infrastructure to address the mem limit issue
2016-07-28 16:07:41 -07:00
memcontrol.c
mm: fix memcg stack accounting for sub-page stacks
2016-07-28 16:07:41 -07:00
memory_hotplug.c
mm, vmscan: simplify the logic deciding whether kswapd sleeps
2016-07-28 16:07:41 -07:00
memory-failure.c
mm, vmscan: move LRU lists to node
2016-07-28 16:07:41 -07:00
memory.c
thp: introduce CONFIG_TRANSPARENT_HUGE_PAGECACHE
2016-07-26 16:19:19 -07:00
mempolicy.c
mm, vmscan: move LRU lists to node
2016-07-28 16:07:41 -07:00
mempool.c
mm: mempool: kasan: don't poot mempool objects in quarantine
2016-06-24 17:23:52 -07:00
memtest.c
memtest: remove unused header files
2015-09-08 15:35:28 -07:00
migrate.c
mm: remove reclaim and compaction retry approximations
2016-07-28 16:07:41 -07:00
mincore.c
mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage
2016-04-04 10:41:08 -07:00
mlock.c
mm, vmscan: move LRU lists to node
2016-07-28 16:07:41 -07:00
mm_init.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
mmap.c
shmem: get_unmapped_area align huge page
2016-07-26 16:19:19 -07:00
mmu_context.c
mm/mmu_context, sched/core: Fix mmu_context.h assumption
2016-04-28 11:44:19 +02:00
mmu_notifier.c
fix Christoph's email addresses
2016-03-17 15:09:34 -07:00
mmzone.c
mm, page_alloc: inline the fast path of the zonelist iterator
2016-05-19 19:12:14 -07:00
mprotect.c
mm: thp: check pmd_trans_unstable() after split_huge_pmd()
2016-07-26 16:19:19 -07:00
mremap.c
mm: thp: check pmd_trans_unstable() after split_huge_pmd()
2016-07-26 16:19:19 -07:00
msync.c
mm/msync: use offset_in_page macro
2015-11-05 19:34:48 -08:00
nobootmem.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
nommu.c
mm: introduce fault_env
2016-07-26 16:19:19 -07:00
oom_kill.c
mm, oom: tighten task_will_free_mem() locking
2016-07-28 16:07:41 -07:00
page_alloc.c
mm: track NR_KERNEL_STACK in KiB instead of number of stacks
2016-07-28 16:07:41 -07:00
page_counter.c
mm: page_counter: let page_counter_try_charge() return bool
2015-11-05 19:34:48 -08:00
page_ext.c
mm: use early_pfn_to_nid in page_ext_init
2016-05-27 14:49:37 -07:00
page_idle.c
mm, vmscan: move lru_lock to the node
2016-07-28 16:07:41 -07:00
page_io.c
block, fs, mm, drivers: use bio set/get op accessors
2016-06-07 13:41:38 -06:00
page_isolation.c
mm/page_isolation: clean up confused code
2016-07-26 16:19:19 -07:00
page_owner.c
mm/page_owner: use stackdepot to store stacktrace
2016-07-26 16:19:19 -07:00
page_poison.c
mm: check the return value of lookup_page_ext for all call sites
2016-06-03 15:06:22 -07:00
page-writeback.c
mm: remove reclaim and compaction retry approximations
2016-07-28 16:07:41 -07:00
pagewalk.c
thp: rename split_huge_page_pmd() to split_huge_pmd()
2016-01-15 17:56:32 -08:00
percpu-km.c
mm: percpu: use pr_fmt to prefix output
2016-03-17 15:09:34 -07:00
percpu-vm.c
percpu: move region iterations out of pcpu_[de]populate_chunk()
2014-09-02 14:46:02 -04:00
percpu.c
percpu: fix synchronization between synchronous map extension and chunk destruction
2016-05-25 11:48:25 -04:00
pgtable-generic.c
mm/thp/migration: switch from flush_tlb_range to flush_pmd_tlb_range
2016-03-17 15:09:34 -07:00
process_vm_access.c
mm/gup: Introduce get_user_pages_remote()
2016-02-16 10:04:09 +01:00
quicklist.c
fix Christoph's email addresses
2016-03-17 15:09:34 -07:00
readahead.c
mm, memcg: use consistent gfp flags during readahead
2016-07-26 16:19:19 -07:00
rmap.c
mm: move most file-based accounting to the node
2016-07-28 16:07:41 -07:00
shmem.c
mm: move most file-based accounting to the node
2016-07-28 16:07:41 -07:00
slab_common.c
mm: charge/uncharge kmemcg from generic page allocator paths
2016-07-26 16:19:19 -07:00
slab.c
mm/slab: use list_move instead of list_del/list_add
2016-07-26 16:19:19 -07:00
slab.h
mm: memcontrol: cleanup kmem charge functions
2016-07-26 16:19:19 -07:00
slob.c
mm: slab: free kmem_cache_node after destroy sysfs file
2016-02-18 16:23:24 -08:00
slub.c
mm: charge/uncharge kmemcg from generic page allocator paths
2016-07-26 16:19:19 -07:00
sparse-vmemmap.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
sparse.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
swap_cgroup.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
swap_state.c
mm: move most file-based accounting to the node
2016-07-28 16:07:41 -07:00
swap.c
mm, pagevec: release/reacquire lru_lock on pgdat change
2016-07-28 16:07:41 -07:00
swapfile.c
mm, frontswap: convert frontswap_enabled to static key
2016-07-26 16:19:19 -07:00
truncate.c
truncate: handle file thp
2016-07-26 16:19:19 -07:00
userfaultfd.c
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
util.c
mm: move most file-based accounting to the node
2016-07-28 16:07:41 -07:00
vmacache.c
mm/vmacache: inline vmacache_valid_mm()
2015-11-05 19:34:48 -08:00
vmalloc.c
mm: charge/uncharge kmemcg from generic page allocator paths
2016-07-26 16:19:19 -07:00
vmpressure.c
mm/vmpressure.c: fix subtree pressure detection
2016-02-03 08:28:43 -08:00
vmscan.c
mm: bail out in shrink_inactive_list()
2016-07-28 16:07:41 -07:00
vmstat.c
mm: remove reclaim and compaction retry approximations
2016-07-28 16:07:41 -07:00
workingset.c
mm, workingset: make working set detection node-aware
2016-07-28 16:07:41 -07:00
z3fold.c
mm/z3fold.c: avoid modifying HEADLESS page and minor cleanup
2016-06-03 16:02:55 -07:00
zbud.c
mm/zbud.c: use list_last_entry() instead of list_tail_entry()
2016-01-15 11:40:52 -08:00
zpool.c
mm: zsmalloc: constify struct zs_pool name
2015-11-06 17:50:42 -08:00
zsmalloc.c
mm/zsmalloc: use helper to clear page->flags bit
2016-07-28 16:07:41 -07:00
zswap.c
mm/zswap: use workqueue to destroy pool
2016-05-20 17:58:30 -07:00