Johannes Weiner b843786b0b mm: swapfile: fix SSD detection with swapfile on btrfs ...

We've been noticing a trend of significant lock contention in the swap
subsystem as core counts have been increasing in our fleet.  It turns out
that our swapfiles on btrfs on flash were in fact using the old swap code
for rotational storage.

This turns out to be a detection issue in the swapon sequence: btrfs sets
si->bdev during swap activation, which currently happens *after* swapon's
SSD detection and cluster setup.  Thus, none of the SSD optimizations and
cluster lock splitting are enabled for btrfs swap.

Rearrange the swapon sequence so that filesystem activation happens
*before* determining swap behavior based on the backing device.

Afterwards, the nonrotational drive is detected correctly:

- Adding 2097148k swap on /mnt/swapfile.  Priority:-3 extents:1 across:2097148k
+ Adding 2097148k swap on /mnt/swapfile.  Priority:-3 extents:1 across:2097148k SS

Link: https://lkml.kernel.org/r/20240822112707.351844-1-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

2024-09-03 21:15:46 -07:00

..

damon

mm/damon/lru_sort: adjust local variable to dynamic allocation

2024-09-01 20:25:45 -07:00

kasan

kasan: fix bad call to unpoison_slab_object

2024-06-24 20:52:09 -07:00

kfence

kfence: save freeing stack trace at calling time instead of freeing time

2024-09-01 20:26:12 -07:00

kmsan

kmsan: do not pass NULL pointers as 0

2024-07-03 19:30:26 -07:00

backing-dev.c

writeback: support retrieving per group debug writeback stats of bdi

2024-05-05 17:53:51 -07:00

balloon_compaction.c

mm: remove MIGRATE_SYNC_NO_COPY mode

2024-07-03 19:30:00 -07:00

bootmem_info.c

bootmem: use kmemleak_free_part_phys in put_page_bootmem

2023-10-25 16:47:13 -07:00

cma_debug.c

mm/cma_debug: show complete cma name in debugfs directories

2022-09-11 20:25:50 -07:00

cma_sysfs.c

mm/cma: add sysfs file 'release_pages_success'

2024-02-22 10:24:57 -08:00

cma.c

mm/cma: add cma_{alloc,free}_folio()

2024-09-03 21:15:36 -07:00

cma.h

mm/cma: add sysfs file 'release_pages_success'

2024-02-22 10:24:57 -08:00

compaction.c

mm/contig_alloc: support __GFP_COMP

2024-09-03 21:15:36 -07:00

debug_page_alloc.c

mm: page_alloc: consolidate free page accounting

2024-04-25 20:56:04 -07:00

debug_page_ref.c

…

debug_vm_pgtable.c

mm/debug_vm_pgtable: drop RANDOM_ORVALUE trick

2024-06-15 10:43:08 -07:00

debug.c

mm: support only one page_type per page

2024-09-03 21:15:43 -07:00

dmapool_test.c

mm/dmapool: add MODULE_DESCRIPTION()

2024-07-03 19:29:58 -07:00

dmapool.c

mm/mempool/dmapool: remove CONFIG_DEBUG_SLAB ifdefs

2023-12-05 11:17:58 +01:00

early_ioremap.c

mm/early_ioremap.c: improve the execution efficiency of early_ioremap_setup()

2023-06-09 16:25:56 -07:00

execmem.c

mm/execmem, arch: convert remaining overrides of module_alloc to execmem

2024-05-14 00:31:43 -07:00

fadvise.c

mm: remove unnecessary pagevec includes

2023-06-23 16:59:31 -07:00

fail_page_alloc.c

mm, page_alloc: put should_fail_alloc_page() back behing CONFIG_FAIL_PAGE_ALLOC

2024-07-17 21:05:18 -07:00

failslab.c

mm, slab: put should_failslab() back behind CONFIG_SHOULD_FAILSLAB

2024-07-17 21:05:18 -07:00

filemap.c

mm: allow read-ahead with IOCB_NOWAIT set

2024-09-03 21:15:40 -07:00

folio-compat.c

mm: remove page_mapping()

2024-07-03 19:29:59 -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

mm/gup_test: start/stop/read functionality for PIN LONGTERM test

2022-11-08 17:37:15 -08:00

gup.c

mm: remove follow_page()

2024-09-01 20:26:01 -07:00

highmem.c

mm/highmem: make nr_free_highpages() return "unsigned long"

2024-07-03 19:30:06 -07:00

hmm.c

mm: provide mm_struct and address to huge_ptep_get()

2024-07-12 15:52:15 -07:00

huge_memory.c

x86: remove PG_uncached

2024-09-03 21:15:46 -07:00

hugetlb_cgroup.c

mm: memcg: don't call propagate_protected_usage() needlessly

2024-09-01 20:25:50 -07:00

hugetlb_vmemmap.c

mm/hugetlb_vmemmap: don't synchronize_rcu() without HVO

2024-09-01 20:25:45 -07:00

hugetlb_vmemmap.h

mm: hugetlb_vmemmap: fix reference to nonexistent file

2023-10-25 16:47:14 -07:00

hugetlb.c

mm/hugetlb: use __GFP_COMP for gigantic folios

2024-09-03 21:15:36 -07:00

hwpoison-inject.c

mm/hwpoison: add MODULE_DESCRIPTION()

2024-07-03 19:29:58 -07:00

init-mm.c

mm: Deprecate pasid field

2023-12-12 10:11:32 +01:00

internal.h

printf: remove %pGt support

2024-09-03 21:15:42 -07:00

interval_tree.c

…

io-mapping.c

…

ioremap.c

mm: ioremap: remove unneeded ioremap_allowed and iounmap_allowed

2023-08-18 10:12:36 -07:00

Kconfig

x86: remove PG_uncached

2024-09-03 21:15:46 -07:00

Kconfig.debug

mm/slub: unify all sl[au]b parameters with "slab_$param"

2024-01-22 10:31:08 +01:00

khugepaged.c

mm: khugepaged: support shmem mTHP collapse

2024-09-03 21:15:39 -07:00

kmemleak.c

mm/kmemleak: use IS_ERR_PCPU() for pointer in the percpu address space

2024-09-03 21:15:38 -07:00

ksm.c

mm: remove PageSwapCache

2024-09-03 21:15:44 -07:00

list_lru.c

mm: list_lru: fix UAF for memory cgroup

2024-08-07 18:33:56 -07:00

maccess.c

mm: Fix copy_from_user_nofault().

2023-04-12 17:36:23 -07:00

madvise.c

mseal: replace can_modify_mm_madv with a vma variant

2024-09-03 21:15:41 -07:00

Makefile

mm: introduce numa_emulation

2024-09-03 21:15:31 -07:00

mapping_dirty_helpers.c

mm: fix clean_record_shared_mapping_range kernel-doc

2023-08-24 16:20:30 -07:00

memblock.c

mm: rework accept memory helpers

2024-09-01 20:26:07 -07:00

memcontrol-v1.c

memcg: initiate deprecation of pressure_level

2024-09-01 20:26:21 -07:00

memcontrol-v1.h

memcg: allocate v1 event percpu only on v1 deployment

2024-09-01 20:26:20 -07:00

memcontrol.c

mm,memcg: provide per-cgroup counters for NUMA balancing operations

2024-09-03 21:15:36 -07:00

memfd.c

mm/gup: introduce memfd_pin_folios() for pinning memfd folios

2024-07-12 15:52:09 -07:00

memory_hotplug.c

mm/memory_hotplug: get rid of __ref

2024-09-01 20:25:56 -07:00

memory-failure.c

mm/memory-failure: use raw_spinlock_t in struct memory_failure_cpu

2024-08-15 22:16:14 -07:00

memory-tiers.c

memory tiering: introduce folio_use_access_time() check

2024-09-01 20:25:47 -07:00

memory.c

mm,memcg: provide per-cgroup counters for NUMA balancing operations

2024-09-03 21:15:36 -07:00

mempolicy.c

mm,memcg: provide per-cgroup counters for NUMA balancing operations

2024-09-03 21:15:36 -07:00

mempool.c

mm: fix xyz_noprof functions calling profiled functions

2024-06-05 19:19:26 -07:00

memremap.c

mm: convert put_devmap_managed_page_refs() to put_devmap_managed_folio_refs()

2024-05-05 17:53:49 -07:00

memtest.c

memtest: use {READ,WRITE}_ONCE in memory scanning

2024-03-13 12:12:21 -07:00

migrate_device.c

mm: extend rmap flags arguments for folio_add_new_anon_rmap

2024-07-03 19:30:18 -07:00

migrate.c

mm: remove PageSwapCache

2024-09-03 21:15:44 -07:00

mincore.c

mm: provide mm_struct and address to huge_ptep_get()

2024-07-12 15:52:15 -07:00

mlock.c

Random number generator updates for Linux 6.11-rc1.

2024-07-24 10:29:50 -07:00

mm_init.c

mm: drop CONFIG_HAVE_ARCH_NODEDATA_EXTENSION

2024-09-03 21:15:28 -07:00

mm_slot.h

mm: introduce common struct mm_slot

2022-10-03 14:02:43 -07:00

mmap_lock.c

mm: mmap_lock: replace get_memcg_path_buf() with on-stack buffer

2024-07-03 19:30:26 -07:00

mmap.c

mm/munmap: replace can_modify_mm with can_modify_vma

2024-09-03 21:15:41 -07:00

mmu_gather.c

mm/mmu_gather: improve cond_resched() handling with large folios and expensive page freeing

2024-02-22 15:27:17 -08:00

mmu_notifier.c

mm: move internal core VMA manipulation functions to own file

2024-09-01 20:25:54 -07:00

mmzone.c

mm: improve code consistency with zonelist_* helper functions

2024-09-01 20:25:55 -07:00

mprotect.c

mm/mprotect: replace can_modify_mm with can_modify_vma

2024-09-03 21:15:41 -07:00

mremap.c

mm/mremap: replace can_modify_mm with can_modify_vma

2024-09-03 21:15:41 -07:00

mseal.c

mm: remove can_modify_mm()

2024-09-03 21:15:42 -07:00

msync.c

mm/msync: use vma_find() instead of vma linked list

2022-09-26 19:46:25 -07:00

nommu.c

mm: remove follow_page()

2024-09-01 20:26:01 -07:00

numa_emulation.c

mm: introduce numa_emulation

2024-09-03 21:15:31 -07:00

numa_memblks.c

mm: make range-to-target_node lookup facility a part of numa_memblks

2024-09-03 21:15:32 -07:00

numa.c

mm: make range-to-target_node lookup facility a part of numa_memblks

2024-09-03 21:15:32 -07:00

oom_kill.c

memory: remove the now superfluous sentinel element from ctl_table array

2024-04-25 20:56:32 -07:00

page_alloc.c

mm/contig_alloc: support __GFP_COMP

2024-09-03 21:15:36 -07:00

page_counter.c

mm, memcg: cg2 memory{.swap,}.peak write handlers

2024-09-01 20:25:53 -07:00

page_ext.c

mm: don't account memmap per-node

2024-08-15 22:16:14 -07:00

page_idle.c

mm: page_idle: convert page idle to use a folio

2023-01-18 17:12:52 -08:00

page_io.c

fs: remove calls to set and clear the folio error flag

2024-09-01 20:26:04 -07:00

page_isolation.c

mm: remove migration for HugePage in isolate_single_pageblock()

2024-09-03 21:15:40 -07:00

page_owner.c

mm/page-owner: use gfp_nested_mask() instead of open coded masking

2024-05-19 14:40:44 -07:00

page_poison.c

mm/page_poison: replace kmap_atomic() with kmap_local_page()

2023-12-10 16:51:50 -08:00

page_reporting.c

mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER

2024-01-08 15:27:15 -08:00

page_reporting.h

…

page_table_check.c

mm/page_table_check: fix crash on ZONE_DEVICE

2024-06-15 10:43:04 -07:00

page_vma_mapped.c

mm: make page_mapped_in_vma conditional on CONFIG_MEMORY_FAILURE

2024-05-05 17:53:45 -07:00

page-writeback.c

mm:page-writeback: use folio_next_index() helper in writeback_iter()

2024-09-03 21:15:46 -07:00

pagewalk.c

mm/pagewalk: introduce folio_walk_start() + folio_walk_end()

2024-09-01 20:25:59 -07:00

percpu-internal.h

mm: remove CONFIG_MEMCG_KMEM

2024-07-10 12:14:54 -07:00

percpu-km.c

…

percpu-stats.c

mm: use vmalloc_array and vcalloc for array allocations

2022-03-08 09:30:46 -05:00

percpu-vm.c

percpu: clean up all mappings when pcpu_map_pages() fails

2024-04-25 20:55:49 -07:00

percpu.c

percpu: remove pcpu_alloc_size()

2024-09-01 20:26:04 -07:00

pgalloc-track.h

…

pgtable-generic.c

mm: fix race between __split_huge_pmd_locked() and GUP-fast

2024-05-07 10:37:00 -07:00

process_vm_access.c

mm: fix process_vm_rw page counts

2023-12-10 16:51:39 -08:00

ptdump.c

mm: ptdump: add check_wx_pages debugfs attribute

2024-02-22 10:24:47 -08:00

readahead.c

Merge branch 'mm-hotfixes-stable' into mm-stable to pick up "mm: fix

2024-07-06 11:44:41 -07:00

rmap.c

mm/rmap: use folio->_mapcount for small folios

2024-09-03 21:15:37 -07:00

rodata_test.c

mm/rodata_test: use PAGE_ALIGNED() helper

2022-10-03 14:03:05 -07:00

secretmem.c

mm/secretmem: use a folio in secretmem_fault()

2023-08-21 13:38:02 -07:00

shmem_quota.c

shmem_quota: build the object file conditionally to the config option

2024-09-01 20:25:45 -07:00

shmem.c

mm: remove PageSwapCache

2024-09-03 21:15:44 -07:00

show_mem.c

lib: add memory allocations report in show_mem()

2024-04-25 20:55:57 -07:00

shrinker_debug.c

mm: shrinker: use min() to improve shrinker_debugfs_scan_write()

2024-09-03 21:15:40 -07:00

shrinker.c

mm: shrinker: use kvzalloc_node() from expand_one_shrinker_info()

2024-01-05 09:58:32 -08:00

shuffle.c

mm/shuffle: convert module_param_call to module_param_cb

2022-10-03 14:03:07 -07:00

shuffle.h

mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER

2024-01-08 15:27:15 -08:00

slab_common.c

mm: krealloc: clarify valid usage of __GFP_ZERO

2024-09-03 21:15:37 -07:00

slab.h

- 875fa64577da ("mm/hugetlb_vmemmap: fix race with speculative PFN

2024-07-21 17:15:46 -07:00

slub.c

mm, slub: do not call do_slab_free for kfence object

2024-07-30 11:50:00 +02:00

sparse-vmemmap.c

mm: don't account memmap per-node

2024-08-15 22:16:14 -07:00

sparse.c

mm: don't account memmap per-node

2024-08-15 22:16:14 -07:00

swap_cgroup.c

mm: attempt to batch free swap entries for zap_pte_range()

2024-09-03 21:15:33 -07:00

swap_slots.c

mm: swap: update get_swap_pages() to take folio order

2024-04-25 20:56:37 -07:00

swap_state.c

mm: return the folio from swapin_readahead

2024-09-01 20:26:05 -07:00

swap.c

mm/swap: take folio refcount after testing the LRU flag

2024-09-01 20:26:10 -07:00

swap.h

mm: return the folio from swapin_readahead

2024-09-01 20:26:05 -07:00

swapfile.c

mm: swapfile: fix SSD detection with swapfile on btrfs

2024-09-03 21:15:46 -07:00

truncate.c

mm: Fix missing folio invalidation calls during truncation

2024-08-24 16:09:16 +02:00

usercopy.c

mm: Fix copy_from_user_nofault().

2023-04-12 17:36:23 -07:00

userfaultfd.c

userfaultfd: move core VMA manipulation logic to mm/userfaultfd.c

2024-09-01 20:25:53 -07:00

util.c

mm: only enforce minimum stack gap size if it's sensible

2024-09-01 20:26:02 -07:00

vma_internal.h

mm: remove duplicated include in vma_internal.h

2024-09-01 20:26:02 -07:00

vma.c

mm/munmap: replace can_modify_mm with can_modify_vma

2024-09-03 21:15:41 -07:00

vma.h

mseal: replace can_modify_mm_madv with a vma variant

2024-09-03 21:15:41 -07:00

vmalloc.c

mm: vmalloc: add optimization hint on page existence check

2024-09-01 20:26:08 -07:00

vmpressure.c

eventfd: simplify eventfd_signal()

2023-11-28 14:08:38 +01:00

vmscan.c

mm,memcg: provide per-cgroup counters for NUMA balancing operations

2024-09-03 21:15:36 -07:00

vmstat.c

mm: print the promo watermark in zoneinfo

2024-09-01 20:25:59 -07:00

workingset.c

cachestat: do not flush stats in recency check

2024-07-03 22:40:37 -07:00

z3fold.c

mm/z3fold: add __percpu annotation to *unbuddied pointer in struct z3fold_pool

2024-09-01 20:25:56 -07:00

zbud.c

mm: zpool: return pool size in pages

2024-04-25 20:55:48 -07:00

zpool.c

mm: zpool: return pool size in pages

2024-04-25 20:55:48 -07:00

zsmalloc.c

zsmalloc: use all available 24 bits of page_type

2024-09-03 21:15:43 -07:00

zswap.c

zswap: implement a second chance algorithm for dynamic zswap shrinker

2024-09-01 20:26:02 -07:00