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Linus Torvalds 452b94b8c8 mm/swap: don't BUG_ON() due to uninitialized swap slot cache 
This BUG_ON() triggered for me once at shutdown, and I don't see a
reason for the check.  The code correctly checks whether the swap slot
cache is usable or not, so an uninitialized swap slot cache is not
actually problematic afaik.

I've temporarily just switched the BUG_ON() to a WARN_ON_ONCE(), since
I'm not sure why that seemingly pointless check was there.  I suspect
the real fix is to just remove it entirely, but for now we'll warn about
it but not bring the machine down.

Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-19 19:00:47 -07:00
..
kasan
Merge branch 'prep-for-5level'
2017-03-10 08:59:07 -08:00
backing-dev.c
bdi: Fix use-after-free in wb_congested_put()
2017-03-08 10:55:17 -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/bootmem.c: cosmetic improvement of code readability
2017-02-22 16:41:29 -08:00
cleancache.c
…
cma_debug.c
mm: cma_alloc: allow to specify GFP mask
2017-02-24 17:46:55 -08:00
cma.c
mm: cma: print allocation failure reason and bitmap status
2017-02-24 17:46:55 -08:00
cma.h
…
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_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, debug: print raw struct page data in __dump_page()
2016-12-12 18:55:08 -08:00
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
mm: replace get_vaddr_frames() write/force parameters with gup_flags
2016-10-19 08:11:24 -07:00
frontswap.c
mm, frontswap: convert frontswap_enabled to static key
2016-07-26 16:19:19 -07:00
gup.c
mm, gup: fix typo in gup_p4d_range()
2017-03-13 08:58:09 -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
Merge branch 'prep-for-5level'
2017-03-10 08:59:07 -08:00
hugetlb_cgroup.c
mm, hugetlb_cgroup: round limit_in_bytes down to hugepage size
2016-05-20 17:58:30 -07:00
hugetlb.c
mm: convert generic code to 5-level paging
2017-03-09 11:48:47 -08:00
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
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
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
mm/list_lru.c: avoid error-path NULL pointer deref
2016-10-27 18:43:42 -07:00
maccess.c
x86: remove more uaccess_32.h complexity
2016-05-22 17:21:27 -07:00
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_hotplug.c
mm: add private lock to serialize memory hotplug operations
2017-03-16 16:56:18 -07:00
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
mm: introduce __p4d_alloc()
2017-03-09 11:48:48 -08:00
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
Revert "mm, mempool: only set __GFP_NOMEMALLOC if there are free elements"
2016-07-28 16:07:41 -07:00
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
Merge branch 'prep-for-5level'
2017-03-10 08:59:07 -08:00
mm_init.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
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: convert generic code to 5-level paging
2017-03-09 11:48:47 -08:00
mremap.c
mm: convert generic code to 5-level paging
2017-03-09 11:48:47 -08:00
msync.c
…
nobootmem.c
mm: kmemleak: avoid using __va() on addresses that don't have a lowmem mapping
2016-10-11 15:06:33 -07:00
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_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
mm/page_ext: support extra space allocation by page_ext user
2016-10-07 18:46:27 -07:00
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
writeback: add wbc_to_write_flags()
2016-11-02 10:24:03 -06:00
page_isolation.c
mm, page_alloc: avoid page_to_pfn() when merging buddies
2017-02-22 16:41:27 -08:00
page_owner.c
mm/page_owner: don't define fields on struct page_ext by hard-coding
2016-10-07 18:46:27 -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_vma_mapped.c
mm: convert generic code to 5-level paging
2017-03-09 11:48:47 -08:00
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
pagewalk.c
mm: convert generic code to 5-level paging
2017-03-09 11:48:47 -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: remove unused chunk_alloc parameter from pcpu_get_pages()
2017-03-06 15:56:55 -05:00
percpu.c
percpu: acquire pcpu_lock when updating pcpu_nr_empty_pop_pages
2017-03-06 15:55:39 -05:00
pgtable-generic.c
mm: convert generic code to 5-level paging
2017-03-09 11:48:47 -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
fix Christoph's email addresses
2016-03-17 15:09:34 -07:00
readahead.c
mm: don't cap request size based on read-ahead setting
2016-12-12 18:55:08 -08:00
rmap.c
Merge branch 'prep-for-5level'
2017-03-10 08:59:07 -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_common.c
kasan: drain quarantine of memcg slab objects
2017-02-24 17:46:56 -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
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
mm: convert generic code to 5-level paging
2017-03-09 11:48:47 -08:00
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_cgroup.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
swap_slots.c
mm/swap: don't BUG_ON() due to uninitialized swap slot cache
2017-03-19 19:00:47 -07:00
swap_state.c
mm/swap: skip readahead only when swap slot cache is enabled
2017-02-22 16:41:30 -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
swapfile.c
mm: convert generic code to 5-level paging
2017-03-09 11:48:47 -08:00
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
mm: convert generic code to 5-level paging
2017-03-09 11:48:47 -08:00
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
mm: don't warn when vmalloc() fails due to a fatal signal
2017-03-16 16:56:18 -07:00
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: fix spinlock unlocking in page reclaim
2017-03-16 16:56:18 -07:00
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