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Marco Elver 07e8481d3c kfence: always use static branches to guard kfence_alloc() 
Regardless of KFENCE mode (CONFIG_KFENCE_STATIC_KEYS: either using
static keys to gate allocations, or using a simple dynamic branch),
always use a static branch to avoid the dynamic branch in kfence_alloc()
if KFENCE was disabled at boot.

For CONFIG_KFENCE_STATIC_KEYS=n, this now avoids the dynamic branch if
KFENCE was disabled at boot.

To simplify, also unifies the location where kfence_allocation_gate is
read-checked to just be inline in kfence_alloc().

Link: https://lkml.kernel.org/r/20211019102524.2807208-1-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Jann Horn <jannh@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-11-06 13:30:43 -07:00
..
damon
mm/damon/core-test: fix wrong expectations for 'damon_split_regions_of()'
2021-10-28 17:18:55 -07:00
kasan
kasan: arm64: fix pcpu_page_first_chunk crash with KASAN_VMALLOC
2021-11-06 13:30:37 -07:00
kfence
kfence: always use static branches to guard kfence_alloc()
2021-11-06 13:30:43 -07:00
backing-dev.c
mm/vmscan: throttle reclaim until some writeback completes if congested
2021-11-06 13:30:40 -07:00
balloon_compaction.c
mm: fix typos in comments
2021-05-07 00:26:35 -07:00
bootmem_info.c
mm/bootmem_info.c: mark __init on register_page_bootmem_info_section
2021-09-03 09:58:14 -07:00
cleancache.c
Driver Core and debugfs changes for 5.3-rc1
2019-07-12 12:24:03 -07:00
cma_debug.c
mm/cma: change cma mutex to irq safe spinlock
2021-05-05 11:27:21 -07:00
cma_sysfs.c
mm: cma: support sysfs
2021-05-05 11:27:24 -07:00
cma.c
memblock: rename memblock_free to memblock_phys_free
2021-11-06 13:30:41 -07:00
cma.h
mm: cma: support sysfs
2021-05-05 11:27:24 -07:00
compaction.c
mm/vmscan: centralise timeout values for reclaim_throttle
2021-11-06 13:30:40 -07:00
debug_page_ref.c
…
debug_vm_pgtable.c
mm: debug_vm_pgtable: don't use __P000 directly
2021-11-06 13:30:33 -07:00
debug.c
mm/migrate: de-duplicate migrate_reason strings
2021-11-06 13:30:41 -07:00
dmapool.c
mm/dmapool: use DEVICE_ATTR_RO macro
2021-06-29 10:53:52 -07:00
early_ioremap.c
mm/early_ioremap.c: remove redundant early_ioremap_shutdown()
2021-09-08 11:50:24 -07:00
fadvise.c
mm, fadvise: improve the expensive remote LRU cache draining after FADV_DONTNEED
2020-10-13 18:38:29 -07:00
failslab.c
mm/failslab.c: by default, do not fail allocations with direct reclaim only
2019-07-12 11:05:43 -07:00
filemap.c
mm/vmscan: throttle reclaim until some writeback completes if congested
2021-11-06 13:30:40 -07:00
frontswap.c
mm/mempool: minor coding style tweaks
2021-05-05 11:27:27 -07:00
gup_test.c
selftests/vm: gup_test: test faulting in kernel, and verify pinnable pages
2021-05-05 11:27:26 -07:00
gup_test.h
selftests/vm: gup_test: fix test flag
2021-05-05 11:27:26 -07:00
gup.c
mm/gup: further simplify __gup_device_huge()
2021-11-06 13:30:34 -07:00
highmem.c
mm/highmem: remove deprecated kmap_atomic
2021-11-06 13:30:43 -07:00
hmm.c
mm/hmm: bypass devmap pte when all pfn requested flags are fulfilled
2021-09-08 18:45:52 -07:00
huge_memory.c
mm: filemap: check if THP has hwpoisoned subpage for PMD page fault
2021-10-28 17:18:55 -07:00
hugetlb_cgroup.c
hugetlb_cgroup: remove unused hugetlb_cgroup_from_counter macro
2021-11-06 13:30:39 -07:00
hugetlb_vmemmap.c
mm: hugetlb: introduce CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON
2021-06-30 20:47:26 -07:00
hugetlb_vmemmap.h
mm: hugetlb: introduce nr_free_vmemmap_pages in the struct hstate
2021-06-30 20:47:25 -07:00
hugetlb.c
hugetlbfs: extend the definition of hugepages parameter to support node allocation
2021-11-06 13:30:41 -07:00
hwpoison-inject.c
mm: hwpoison: don't drop slab caches for offlining non-LRU page
2021-09-03 09:58:15 -07:00
init-mm.c
mm: add setup_initial_init_mm() helper
2021-07-08 11:48:21 -07:00
internal.h
mm/vmscan: centralise timeout values for reclaim_throttle
2021-11-06 13:30:40 -07:00
interval_tree.c
mm/interval_tree: add comments to improve code readability
2021-04-30 11:20:38 -07:00
io-mapping.c
mm: add a io_mapping_map_user helper
2021-04-30 11:20:39 -07:00
ioremap.c
mm: move ioremap_page_range to vmalloc.c
2021-09-08 11:50:24 -07:00
Kconfig
mm/memory_hotplug: restrict CONFIG_MEMORY_HOTPLUG to 64 bit
2021-11-06 13:30:42 -07:00
Kconfig.debug
mm, page_poison: remove CONFIG_PAGE_POISONING_ZERO
2020-12-15 12:13:46 -08:00
khugepaged.c
mm: khugepaged: recalculate min_free_kbytes after stopping khugepaged
2021-11-06 13:30:39 -07:00
kmemleak.c
mm/kmemleak: allow __GFP_NOLOCKDEP passed to kmemleak's gfp
2021-09-08 18:45:53 -07:00
ksm.c
mm/ksm: remove old GCC 4.9+ check
2021-09-13 10:18:28 -07:00
list_lru.c
mm: list_lru: only add memcg-aware lrus to the global lru list
2021-11-06 13:30:35 -07:00
maccess.c
ARM: 9115/1: mm/maccess: fix unaligned copy_{from,to}_kernel_nofault
2021-08-20 11:39:25 +01:00
madvise.c
Merge branch 'akpm' (patches from Andrew)
2021-09-03 10:08:28 -07:00
Makefile
mm: introduce Data Access MONitor (DAMON)
2021-09-08 11:50:24 -07:00
mapping_dirty_helpers.c
mm/mapping_dirty_helpers: remove double Note in kerneldoc
2021-07-01 11:06:02 -07:00
memblock.c
memblock: add MEMBLOCK_DRIVER_MANAGED to mimic IORESOURCE_SYSRAM_DRIVER_MANAGED
2021-11-06 13:30:42 -07:00
memcontrol.c
mm/vmscan: throttle reclaim when no progress is being made
2021-11-06 13:30:40 -07:00
memfd.c
Reimplement RLIMIT_MEMLOCK on top of ucounts
2021-04-30 14:14:02 -05:00
memory_hotplug.c
mm/memory_hotplug: indicate MEMBLOCK_DRIVER_MANAGED with IORESOURCE_SYSRAM_DRIVER_MANAGED
2021-11-06 13:30:42 -07:00
memory-failure.c
mm: hwpoison: handle non-anonymous THP correctly
2021-11-06 13:30:38 -07:00
memory.c
mm: remove redundant smp_wmb()
2021-11-06 13:30:36 -07:00
mempolicy.c
mm: migrate: make demotion knob depend on migration
2021-11-06 13:30:41 -07:00
mempool.c
kasan: use separate (un)poison implementation for integrated init
2021-06-04 19:32:21 +01:00
memremap.c
mm/memory_hotplug: remove nid parameter from arch_remove_memory()
2021-09-08 11:50:23 -07:00
memtest.c
…
migrate.c
mm: migrate: make demotion knob depend on migration
2021-11-06 13:30:41 -07:00
mincore.c
inode: make init and permission helpers idmapped mount aware
2021-01-24 14:27:16 +01:00
mlock.c
mm: introduce memfd_secret system call to create "secret" memory areas
2021-07-08 11:48:21 -07:00
mm_init.c
include/linux/page-flags-layout.h: cleanups
2021-04-30 11:20:42 -07:00
mmap_lock.c
mm: mmap_lock: fix disabling preemption directly
2021-07-23 17:43:28 -07:00
mmap.c
mm/mmap.c: fix a data race of mm->total_vm
2021-11-06 13:30:35 -07:00
mmu_gather.c
mm: eliminate "expecting prototype" kernel-doc warnings
2021-04-16 16:10:36 -07:00
mmu_notifier.c
mm/mmu_notifiers: ensure range_end() is paired with range_start()
2021-03-25 09:22:55 -07:00
mmzone.c
mm/lru: replace pgdat lru_lock with lruvec lock
2020-12-15 14:48:04 -08:00
mprotect.c
mm/mprotect.c: avoid repeated assignment in do_mprotect_pkey()
2021-11-06 13:30:36 -07:00
mremap.c
mm, hugepages: add mremap() support for hugepage backed vma
2021-11-06 13:30:39 -07:00
msync.c
mm/msync: exit early when the flags is an MS_ASYNC and start < vm_start
2021-04-30 11:20:37 -07:00
nommu.c
mm: nommu: kill arch_get_unmapped_area()
2021-11-06 13:30:41 -07:00
oom_kill.c
mm: mark the OOM reaper thread as freezable
2021-11-06 13:30:41 -07:00
page_alloc.c
mm/page_alloc: remove the throttling logic from the page allocator
2021-11-06 13:30:40 -07:00
page_counter.c
mm: page_counter: mitigate consequences of a page_counter underflow
2021-04-30 11:20:38 -07:00
page_ext.c
mm/page_ext.c: fix a comment
2021-11-06 13:30:34 -07:00
page_idle.c
mm/idle_page_tracking: make PG_idle reusable
2021-09-08 11:50:24 -07:00
page_io.c
swap: fix swapfile read/write offset
2021-03-02 17:25:46 -07:00
page_isolation.c
mm/page_isolation: guard against possible putback unisolated page
2021-11-06 13:30:40 -07:00
page_owner.c
mm: remove pfn_valid_within() and CONFIG_HOLES_IN_ZONE
2021-09-08 11:50:22 -07:00
page_poison.c
mm: page_poison: print page info when corruption is caught
2021-04-30 11:20:36 -07:00
page_reporting.c
mm/page_reporting: allow driver to specify reporting order
2021-06-29 10:53:47 -07:00
page_reporting.h
mm/page_reporting: export reporting order as module parameter
2021-06-29 10:53:47 -07:00
page_vma_mapped.c
mm: device exclusive memory access
2021-07-01 11:06:03 -07:00
page-writeback.c
mm/vmscan: centralise timeout values for reclaim_throttle
2021-11-06 13:30:40 -07:00
pagewalk.c
mm: pagewalk: fix walk for hugepage tables
2021-06-29 10:53:49 -07:00
percpu-internal.h
Merge branch 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu
2021-07-01 17:17:24 -07:00
percpu-km.c
percpu: flush tlb in pcpu_reclaim_populated()
2021-07-04 18:30:17 +00:00
percpu-stats.c
percpu: rework memcg accounting
2021-06-05 20:43:15 +00:00
percpu-vm.c
percpu: flush tlb in pcpu_reclaim_populated()
2021-07-04 18:30:17 +00:00
percpu.c
memblock: use memblock_free for freeing virtual pointers
2021-11-06 13:30:41 -07:00
pgalloc-track.h
mm: fix typos in comments
2021-05-07 00:26:35 -07:00
pgtable-generic.c
mm/thp: fix __split_huge_pmd_locked() on shmem migration entry
2021-06-16 09:24:42 -07:00
process_vm_access.c
mm/process_vm_access.c: remove duplicate include
2021-05-05 11:27:27 -07:00
ptdump.c
mm: ptdump: fix build failure
2021-04-16 16:10:37 -07:00
readahead.c
mm/readahead.c: fix incorrect comments for get_init_ra_size
2021-11-06 13:30:41 -07:00
rmap.c
mm/rmap.c: avoid double faults migrating device private pages
2021-11-06 13:30:43 -07:00
rodata_test.c
mm/rodata_test.c: fix missing function declaration
2020-08-21 09:52:53 -07:00
secretmem.c
mm/secretmem: avoid letting secretmem_users drop to zero
2021-10-28 17:18:55 -07:00
shmem.c
mm: shmem: don't truncate page if memory failure happens
2021-11-06 13:30:38 -07:00
shuffle.c
mm: eliminate "expecting prototype" kernel-doc warnings
2021-04-16 16:10:36 -07:00
shuffle.h
mm/shuffle: fix section mismatch warning
2021-05-22 15:09:07 -10:00
slab_common.c
mm: remove HARDENED_USERCOPY_FALLBACK
2021-11-06 13:30:43 -07:00
slab.c
mm: remove HARDENED_USERCOPY_FALLBACK
2021-11-06 13:30:43 -07:00
slab.h
mm/memcg: fix NULL pointer dereference in memcg_slab_free_hook()
2021-07-30 10:14:39 -07:00
slob.c
mm: Don't build mm_dump_obj() on CONFIG_PRINTK=n kernels
2021-03-08 14:18:46 -08:00
slub.c
mm: remove HARDENED_USERCOPY_FALLBACK
2021-11-06 13:30:43 -07:00
sparse-vmemmap.c
mm: remove redundant smp_wmb()
2021-11-06 13:30:36 -07:00
sparse.c
memblock: use memblock_free for freeing virtual pointers
2021-11-06 13:30:41 -07:00
swap_cgroup.c
mm: memcontrol: make swap tracking an integral part of memory control
2020-06-03 20:09:48 -07:00
swap_slots.c
mm: Replace deprecated CPU-hotplug functions.
2021-08-28 01:46:17 +02:00
swap_state.c
Revert "mm: swap: check if swap backing device is congested or not"
2021-08-20 11:31:42 -07:00
swap.c
mm: optimise put_pages_list()
2021-11-06 13:30:35 -07:00
swapfile.c
mm/swapfile: fix an integer overflow in swap_show()
2021-11-06 13:30:35 -07:00
truncate.c
Merge branch 'akpm' (patches from Andrew)
2021-09-03 10:08:28 -07:00
usercopy.c
mm/usercopy.c: delete duplicated word
2020-08-12 10:57:58 -07:00
userfaultfd.c
mm: shmem: don't truncate page if memory failure happens
2021-11-06 13:30:38 -07:00
util.c
mm: fix uninitialized use in overcommit_policy_handler
2021-09-24 16:13:35 -07:00
vmacache.c
kernel: better document the use_mm/unuse_mm API contract
2020-06-10 19:14:18 -07:00
vmalloc.c
mm/vmalloc: introduce alloc_pages_bulk_array_mempolicy to accelerate memory allocation
2021-11-06 13:30:37 -07:00
vmpressure.c
mm/vmpressure: fix data-race with memcg->socket_pressure
2021-11-06 13:30:40 -07:00
vmscan.c
mm/vmscan: delay waking of tasks throttled on NOPROGRESS
2021-11-06 13:30:40 -07:00
vmstat.c
mm: vmstat.c: make extfrag_index show more pretty
2021-11-06 13:30:42 -07:00
workingset.c
memcg: flush lruvec stats in the refault
2021-09-23 10:09:13 -07:00
z3fold.c
mm/z3fold: add kerneldoc fields for z3fold_pool
2021-07-01 11:06:03 -07:00
zbud.c
mm/zbud: add kerneldoc fields for zbud_pool
2021-07-01 11:06:03 -07:00
zpool.c
mm: fix typos in comments
2021-05-07 00:26:35 -07:00
zsmalloc.c
mm/zsmalloc.c: close race window between zs_pool_dec_isolated() and zs_unregister_migration()
2021-11-06 13:30:43 -07:00
zswap.c
mm/zswap.c: fix two bugs in zswap_writeback_entry()
2021-06-30 20:47:31 -07:00