Ma Wupeng c70699e555 swap: stop add to avail list if swap is full ... Our test finds a WARN_ON in add_to_avail_list. During add_to_avail_list, avail_lists is already in swap_avail_heads, while leads to this WARN_ON. Here is the simplified calltrace: ------------[ cut here ]------------ Call trace: add_to_avail_list+0xb8/0xc0 swap_range_free+0x110/0x138 swapcache_free_entries+0x100/0x1c0 free_swap_slot+0xbc/0xe0 put_swap_folio+0x1f0/0x2ec delete_from_swap_cache+0x6c/0xd0 folio_free_swap+0xa4/0xe4 __try_to_reclaim_swap+0x9c/0x190 free_swap_and_cache+0x84/0x88 unmap_page_range+0x31c/0x934 unmap_single_vma.isra.0+0x48/0x84 unmap_vmas+0x98/0x10c exit_mmap+0xa4/0x210 mmput+0x88/0x158 do_exit+0x284/0x970 do_group_exit+0x34/0x90 post_copy_siginfo_from_user32+0x0/0x1cc do_notify_resume+0x15c/0x470 el0_svc+0x74/0x84 el0t_64_sync_handler+0xb8/0xbc el0t_64_sync+0x190/0x194 During swapoff, try_to_unuse fails to alloc memory due to memory limit and this leads to the failure of swapoff and causes re-insertion of swap space back into swap_list. During _enable_swap_info, this swap device is added to avail list even this swap device if full. At the same time, one entry in this full swap device in released and we try to add this device into avail list and find it is already in the avail list. This causes this WARN_ON. To fix this. Don't add to avail list is swap is full. [akpm@linux-foundation.org: coding-style cleanups] Link: https://lkml.kernel.org/r/20230627120833.2230766-3-mawupeng1@huawei.com Signed-off-by: Ma Wupeng <mawupeng1@huawei.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2023-08-18 10:12:00 -07:00
..
damon	mm/damon/core-test: initialise context before test in damon_test_set_attrs()	2023-07-27 13:07:03 -07:00
kasan	kasan, slub: fix HW_TAGS zeroing with slub_debug	2023-07-08 09:29:32 -07:00
kfence	mm/slab: introduce kmem_cache flag SLAB_NO_MERGE	2023-06-02 10:24:33 +02:00
kmsan	kasan,kmsan: remove __GFP_KSWAPD_RECLAIM usage from kasan/kmsan	2023-06-23 16:59:26 -07:00
backing-dev.c	mm: backing-dev: make bdi_class a static const structure	2023-06-23 16:59:27 -07:00
balloon_compaction.c
bootmem_info.c
cma_debug.c
cma_sysfs.c	mm: cma: make kobj_type structure constant	2023-03-28 16:20:06 -07:00
cma.c	mm/page_owner/cma: show pfn in cma/page_owner with hex format	2023-06-19 16:19:32 -07:00
cma.h
compaction.c	mm: compaction: convert to use a folio in isolate_migratepages_block()	2023-06-23 16:59:31 -07:00
debug_page_alloc.c	mm: page_alloc: split out DEBUG_PAGEALLOC	2023-06-09 16:25:23 -07:00
debug_page_ref.c
debug_vm_pgtable.c	mm/debug_vm_pgtable,page_table_check: warn pte map fails	2023-06-19 16:19:15 -07:00
debug.c	mm: update validate_mm() to use vma iterator	2023-06-09 16:25:31 -07:00
dmapool_test.c	dmapool: add alloc/free performance test	2023-04-05 19:42:38 -07:00
dmapool.c	dmapool: create/destroy cleanup	2023-06-09 16:25:17 -07:00
early_ioremap.c	mm/early_ioremap.c: improve the execution efficiency of early_ioremap_setup()	2023-06-09 16:25:56 -07:00
fadvise.c	mm: remove unnecessary pagevec includes	2023-06-23 16:59:31 -07:00
fail_page_alloc.c	mm: page_alloc: split out FAIL_PAGE_ALLOC	2023-06-09 16:25:23 -07:00
failslab.c
filemap.c	mm: increase usage of folio_next_index() helper	2023-08-18 10:12:00 -07:00
folio-compat.c	- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of	2023-04-27 19:42:02 -07:00
frontswap.c	mm: zswap: support exclusive loads	2023-06-19 16:19:05 -07:00
gup_test.c	Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes.	2023-06-23 16:58:19 -07:00
gup_test.h
gup.c	gup: make the stack expansion warning a bit more targeted	2023-07-05 09:33:31 -07:00
highmem.c	mm: ptep_get() conversion	2023-06-19 16:19:25 -07:00
hmm.c	mm: ptep_get() conversion	2023-06-19 16:19:25 -07:00
huge_memory.c	mm: remove references to pagevec	2023-06-23 16:59:30 -07:00
hugetlb_cgroup.c	mm/hugetlb: increase use of folios in alloc_huge_page()	2023-02-13 15:54:27 -08:00
hugetlb_vmemmap.c	mm: ptep_get() conversion	2023-06-19 16:19:25 -07:00
hugetlb_vmemmap.h
hugetlb.c	mm/hugetlb.c: fix a bug within a BUG(): inconsistent pte comparison	2023-07-08 09:29:29 -07:00
hwpoison-inject.c
init-mm.c	IOMMU Updates for Linux 6.4	2023-04-30 13:00:38 -07:00
internal.h	- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.	2023-06-28 10:28:11 -07:00
interval_tree.c
io-mapping.c
ioremap.c
Kconfig	mm: disable CONFIG_PER_VMA_LOCK until its fixed	2023-07-08 09:29:29 -07:00
Kconfig.debug	mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM	2023-05-29 16:14:28 +01:00
khugepaged.c	mm/khugepaged: fix regression in collapse_file()	2023-06-29 09:41:45 -07:00
kmemleak.c	lib/stackdepot, mm: rename stack_depot_want_early_init	2023-02-16 20:43:49 -08:00
ksm.c	mm: remove references to pagevec	2023-06-23 16:59:30 -07:00
list_lru.c
maccess.c	mm: Fix copy_from_user_nofault().	2023-04-12 17:36:23 -07:00
madvise.c	mm: madvise: fix uneven accounting of psi	2023-08-18 10:11:59 -07:00
Makefile	mm: page_alloc: split out DEBUG_PAGEALLOC	2023-06-09 16:25:23 -07:00
mapping_dirty_helpers.c	mm: ptep_get() conversion	2023-06-19 16:19:25 -07:00
memblock.c	Revert "mm,memblock: reset memblock.reserved to system init state to prevent UAF"	2023-07-28 09:47:06 -07:00
memcontrol.c	mm/memcontrol: do not tweak node in mem_cgroup_init()	2023-06-23 16:59:26 -07:00
memfd.c	memfd: check for non-NULL file_seals in memfd_create() syscall	2023-06-19 13:19:31 -07:00
memory_hotplug.c	mm: remove unnecessary pagevec includes	2023-06-23 16:59:31 -07:00
memory-failure.c	mm/memory-failure: fix hardware poison check in unpoison_memory()	2023-07-27 13:07:05 -07:00
memory-tiers.c	memory tier: remove unneeded !IS_ENABLED(CONFIG_MIGRATION) check	2023-06-19 16:19:29 -07:00
memory.c	mm: increase usage of folio_next_index() helper	2023-08-18 10:12:00 -07:00
mempolicy.c	mm/mempolicy: Take VMA lock before replacing policy	2023-07-28 09:44:06 -07:00
mempool.c
memremap.c	mm/memremap.c: fix outdated comment in devm_memremap_pages	2023-02-09 16:51:46 -08:00
memtest.c	mm/memtest: add results of early memtest to /proc/meminfo	2023-04-05 19:42:55 -07:00
migrate_device.c	mm: remove references to pagevec	2023-06-23 16:59:30 -07:00
migrate.c	mm: remove unnecessary pagevec includes	2023-06-23 16:59:31 -07:00
mincore.c	mm: ptep_get() conversion	2023-06-19 16:19:25 -07:00
mlock.c	mm/mlock: fix vma iterator conversion of apply_vma_lock_flags()	2023-07-17 12:53:21 -07:00
mm_init.c	mm/mm_init.c: update obsolete comment in get_pfn_range_for_nid()	2023-08-18 10:12:00 -07:00
mm_slot.h
mmap_lock.c
mmap.c	mm: lock VMA in dup_anon_vma() before setting ->anon_vma	2023-07-27 13:07:04 -07:00
mmu_gather.c	mm: prefer xxx_page() alloc/free functions for order-0 pages	2023-03-28 16:20:16 -07:00
mmu_notifier.c	mm/mmu_notifier: remove unused mmu_notifier_range_update_to_read_only export	2023-02-02 22:32:54 -08:00
mmzone.c
mprotect.c	Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes.	2023-06-23 16:58:19 -07:00
mremap.c	mm: Update do_vmi_align_munmap() return semantics	2023-07-01 08:10:56 -07:00
msync.c
nommu.c	xtensa: fix lock_mm_and_find_vma in case VMA not found	2023-07-01 08:00:05 -07:00
oom_kill.c	mm, oom: do not check 0 mask in out_of_memory()	2023-06-09 16:25:20 -07:00
page_alloc.c	- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.	2023-06-28 10:28:11 -07:00
page_counter.c
page_ext.c	mm/page_ext: init page_ext early if there are no deferred struct pages	2023-02-02 22:33:22 -08:00
page_idle.c	mm: page_idle: convert page idle to use a folio	2023-01-18 17:12:52 -08:00
page_io.c	swap: use __bio_add_page to add page to bio	2023-05-31 09:50:02 -06:00
page_isolation.c	mm: page_isolation: write proper kerneldoc	2023-06-19 16:18:59 -07:00
page_owner.c	mm/page_owner/cma: show pfn in cma/page_owner with hex format	2023-06-19 16:19:32 -07:00
page_poison.c
page_reporting.c	mm, treewide: redefine MAX_ORDER sanely	2023-04-05 19:42:46 -07:00
page_reporting.h
page_table_check.c	- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.	2023-06-28 10:28:11 -07:00
page_vma_mapped.c	mm: ptep_get() conversion	2023-06-19 16:19:25 -07:00
page-writeback.c	writeback: account the number of pages written back	2023-07-08 09:29:30 -07:00
pagewalk.c	mm/pagewalk: fix EFI_PGT_DUMP of espfix area	2023-07-27 13:07:04 -07:00
percpu-internal.h	percpu-internal/pcpu_chunk: re-layout pcpu_chunk structure to reduce false sharing	2023-06-19 16:19:29 -07:00
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c	mm: memcontrol: rename memcg_kmem_enabled()	2023-02-16 20:43:56 -08:00
pgalloc-track.h
pgtable-generic.c	mm: ptep_get() conversion	2023-06-19 16:19:25 -07:00
process_vm_access.c	mm/gup: remove unused vmas parameter from pin_user_pages_remote()	2023-06-09 16:25:25 -07:00
ptdump.c	mm: ptdump should use ptep_get_lockless()	2023-06-19 16:19:24 -07:00
readahead.c	mm: remove unnecessary pagevec includes	2023-06-23 16:59:31 -07:00
rmap.c	mm: ptep_get() conversion	2023-06-19 16:19:25 -07:00
rodata_test.c
secretmem.c	mm/mlock: rename mlock_future_check() to mlock_future_ok()	2023-06-09 16:25:38 -07:00
shmem.c	mm: increase usage of folio_next_index() helper	2023-08-18 10:12:00 -07:00
show_mem.c	mm: page_alloc: collect mem statistic into show_mem.c	2023-06-09 16:25:22 -07:00
shrinker_debug.c	Revert "mm: shrinkers: make count and scan in shrinker debugfs lockless"	2023-06-19 13:19:34 -07:00
shuffle.c
shuffle.h	mm, treewide: redefine MAX_ORDER sanely	2023-04-05 19:42:46 -07:00
slab_common.c	slab updates for 6.5	2023-06-29 16:34:12 -07:00
slab.c	slab updates for 6.5	2023-06-29 16:34:12 -07:00
slab.h	kasan, slub: fix HW_TAGS zeroing with slub_debug	2023-07-08 09:29:32 -07:00
slub.c	slab updates for 6.5	2023-06-29 16:34:12 -07:00
sparse-vmemmap.c	mm: ptep_get() conversion	2023-06-19 16:19:25 -07:00
sparse.c	- Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in	2023-06-28 10:59:38 -07:00
swap_cgroup.c
swap_slots.c
swap_state.c	mm: remove unnecessary pagevec includes	2023-06-23 16:59:31 -07:00
swap.c	mm: remove references to pagevec	2023-06-23 16:59:30 -07:00
swap.h	mm: remove the __swap_writepage return value	2023-02-02 22:33:33 -08:00
swapfile.c	swap: stop add to avail list if swap is full	2023-08-18 10:12:00 -07:00
truncate.c	mm: increase usage of folio_next_index() helper	2023-08-18 10:12:00 -07:00
usercopy.c	mm: Fix copy_from_user_nofault().	2023-04-12 17:36:23 -07:00
userfaultfd.c	mm: ptep_get() conversion	2023-06-19 16:19:25 -07:00
util.c	mm: uninline kstrdup()	2023-04-08 13:45:37 -07:00
vmalloc.c	Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes.	2023-06-23 16:58:19 -07:00
vmpressure.c
vmscan.c	mm/vmscan: fix root proactive reclaim unthrottling unbalanced node	2023-06-23 16:59:32 -07:00
vmstat.c	- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.	2023-06-28 10:28:11 -07:00
workingset.c	Multi-gen LRU: fix workingset accounting	2023-06-09 16:25:46 -07:00
z3fold.c	mm: zswap: remove shrink from zpool interface	2023-06-19 16:19:27 -07:00
zbud.c	mm: zswap: remove shrink from zpool interface	2023-06-19 16:19:27 -07:00
zpool.c	mm: zswap: remove shrink from zpool interface	2023-06-19 16:19:27 -07:00
zsmalloc.c	mm: zswap: remove shrink from zpool interface	2023-06-19 16:19:27 -07:00
zswap.c	mm: zswap: fix double invalidate with exclusive loads	2023-06-23 16:59:31 -07:00