Linus Torvalds b235848f40 cpumask: limit FORCE_NR_CPUS to just the UP case ... [ Upstream commit 5d272dd1b3 ] Hardcoding the number of CPUs at compile time does improve code generation, but if you get it wrong the result will be confusion. We already limited this earlier to only "experts" (see commit fe5759d5bf "cpumask: limit visibility of FORCE_NR_CPUS"), but with distro kernel configs often having EXPERT enabled, that turns out to not be much of a limit. To quote the philosophers at Disney: "Everyone can be an expert. And when everyone's an expert, no one will be". There's a runtime warning if you then set nr_cpus to anything but the forced number, but apparently that can be ignored too [1] and by then it's pretty much too late anyway. If we had some real way to limit this to "embedded only", maybe it would be worth it, but let's see if anybody even notices that the option is gone. We need to simplify kernel configuration anyway. Link: https://lore.kernel.org/all/20240618105036.208a8860@rorschach.local.home/ [1] Reported-by: Steven Rostedt <rostedt@goodmis.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Paul McKenney <paulmck@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Yury Norov <yury.norov@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-07-25 09:50:47 +02:00
..
842
crypto	crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init	2024-01-31 16:18:49 -08:00
dim	linux/dim: Do nothing if no time delta between samples	2023-05-09 11:06:45 +02:00
fonts
kunit	kunit: Fix timeout message	2024-07-11 12:49:08 +02:00
livepatch
lz4
lzo
math	lib/math/int_log: Replace LGPL-2.1-or-later boilerplate with SPDX identifier	2023-07-09 22:47:50 +01:00
pldmfw	lib: remove MODULE_LICENSE in non-modules	2023-04-13 13:13:53 -07:00
raid6	raid6: Add LoongArch SIMD recovery implementation	2023-09-06 22:53:55 +08:00
reed_solomon
test_fortify
vdso	vdso: Improve cmd_vdso_check to check all dynamic relocations	2023-03-21 21:15:34 +01:00
xz
zlib_deflate	lib/zlib: DFLTCC deflate does not write all available bits for Z_NO_FLUSH	2023-02-27 17:00:14 -08:00
zlib_dfltcc	lib/zlib: remove redundation assignement of avail_in dfltcc_gdht()	2023-02-02 22:50:10 -08:00
zlib_inflate	lib/zlib: Split deflate and inflate states for DFLTCC	2023-02-02 22:50:09 -08:00
zstd	zstd: Fix array-index-out-of-bounds UBSAN warning	2023-12-13 18:44:58 +01:00
.gitignore
argv_split.c	argv_split: fix kernel-doc warnings	2023-09-19 13:21:33 -07:00
ashldi3.c
ashrdi3.c
asn1_decoder.c
asn1_encoder.c
assoc_array.c
atomic64_test.c
atomic64.c
audit.c
base64.c
bcd.c
bch.c	lib/bch.c: use bitrev instead of internal logic	2023-08-18 10:18:58 -07:00
bitfield_kunit.c
bitmap.c	lib/bitmap: drop optimization of bitmap_{from,to}_arr64	2023-06-22 13:57:41 -07:00
bitrev.c
bootconfig-data.S
bootconfig.c	bootconfig: use memblock_free_late to free xbc memory to buddy	2024-04-27 17:11:43 +02:00
bsearch.c
btree.c	btree: remove MODULE_LICENSE in non-modules	2023-04-13 13:13:54 -07:00
bucket_locks.c
bug.c	cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG	2023-01-31 15:01:45 +01:00
build_OID_registry
buildid.c	ELF: fix all "Elf" typos	2023-04-08 13:45:37 -07:00
bust_spinlocks.c
check_signature.c
checksum_kunit.c	kunit: Fix checksum tests on big endian CPUs	2023-08-25 10:14:34 +01:00
checksum.c
clz_ctz.c	lib/clz_ctz.c: Fix __clzdi2() and __ctzdi2() for 32-bit kernels	2023-08-25 13:22:10 -07:00
clz_tab.c
cmdline_kunit.c	lib/cmdline: Fix an invalid format specifier in an assertion msg	2024-03-26 18:19:18 -04:00
cmdline.c
cmpdi2.c
compat_audit.c
cpu_rmap.c	lib: cpu_rmap: Fix potential use-after-free in irq_cpu_rmap_release()	2023-06-07 21:25:00 -07:00
cpumask_kunit.c	cpumask: re-introduce constant-sized cpumask optimizations	2023-03-05 14:30:34 -08:00
cpumask.c	cpumask: eliminate kernel-doc warnings	2023-07-17 15:47:21 -07:00
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
crc4.c
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
crc32test.c
crc64-rocksoft.c
crc64.c
ctype.c
debug_info.c
debug_locks.c
debugobjects.c	debugobjects: Stop accessing objects after releasing hash bucket lock	2024-02-05 20:14:14 +00:00
dec_and_lock.c	perf: Fix perf_event_pmu_context serialization	2023-01-31 20:37:18 +01:00
decompress_bunzip2.c
decompress_inflate.c	decompressor: provide missing prototypes	2023-06-09 17:44:17 -07:00
decompress_unlz4.c
decompress_unlzma.c
decompress_unlzo.c
decompress_unxz.c	decompressor: provide missing prototypes	2023-06-09 17:44:17 -07:00
decompress_unzstd.c	decompressor: provide missing prototypes	2023-06-09 17:44:17 -07:00
decompress.c
devmem_is_allowed.c	lib: devmem_is_allowed: include linux/io.h	2023-06-09 17:44:15 -07:00
devres.c	devres: show which resource was invalid in __devm_ioremap_resource()	2023-06-23 17:04:04 -07:00
dhry_1.c	lib: dhry: fix sleeping allocations inside non-preemptable section	2023-07-08 09:29:32 -07:00
dhry_2.c	lib: add Dhrystone benchmark test	2023-02-02 22:50:01 -08:00
dhry_run.c	lib: dhry: fix unstable smp_processor_id(_) usage	2023-03-23 17:18:35 -07:00
dhry.h	lib: add Dhrystone benchmark test	2023-02-02 22:50:01 -08:00
digsig.c
dump_stack.c
dynamic_debug.c	dyndbg: fix old BUG_ON in >control parser	2024-05-17 12:02:33 +02:00
dynamic_queue_limits.c
earlycpio.c
errname.c	parisc: Drop the HP-UX ENOSYM and EREMOTERELEASE error codes	2023-12-08 08:52:20 +01:00
error-inject.c	lib: error-inject: remove error checking for debugfs_create_dir()	2023-08-18 10:18:55 -07:00
errseq.c
extable.c
fault-inject-usercopy.c
fault-inject.c	fault-inject: allow configuration via configfs	2023-04-13 07:38:54 -06:00
fdt_addresses.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
fdt.c
find_bit_benchmark.c
find_bit.c	cpumask: introduce for_each_cpu_or	2023-03-19 10:02:04 -07:00
flex_proportions.c
fortify_kunit.c	kunit/fortify: Fix mismatched kvalloc()/vfree() usage	2024-06-12 11:11:34 +02:00
gen_crc32table.c
gen_crc64table.c
genalloc.c	Devicetree include cleanups for v6.6:	2023-08-30 17:04:28 -07:00
generic-radix-tree.c	lib/generic-radix-tree.c: Don't overflow in peek()	2023-11-28 17:19:35 +00:00
glob.c
globtest.c
group_cpus.c	lib/group_cpus.c: avoid acquiring cpu hotplug lock in group_cpus_evenly	2023-12-13 18:45:22 +01:00
hashtable_test.c	lib/hashtable_test.c: add test for the hashtable structure	2023-02-08 14:28:17 -07:00
hexdump.c
hweight.c
idr.c	ida: Fix crash in ida_free when the bitmap is empty	2024-01-20 11:51:46 +01:00
inflate.c
interval_tree_test.c
interval_tree.c
iomap_copy.c
iomap.c
iommu-helper.c
iov_iter.c	iov_iter: Fix iov_iter_extract_pages() with zero-sized entries	2023-09-09 15:11:49 -07:00
irq_poll.c
irq_regs.c
is_signed_type_kunit.c
is_single_threaded.c
kasprintf.c
Kconfig	cpumask: limit FORCE_NR_CPUS to just the UP case	2024-07-25 09:50:47 +02:00
Kconfig.debug	bpf, kconfig: Fix DEBUG_INFO_BTF_MODULES Kconfig definition	2024-05-17 12:01:59 +02:00
Kconfig.kasan	kasan: treat meminstrinsic as builtins in uninstrumented files	2023-03-02 21:54:22 -08:00
Kconfig.kcsan	Kernel concurrency sanitizer (KCSAN) updates for v6.3	2023-02-25 13:02:20 -08:00
Kconfig.kfence
Kconfig.kgdb
Kconfig.kmsan
Kconfig.ubsan	ubsan: Clarify Kconfig text for CONFIG_UBSAN_TRAP	2023-07-17 16:05:19 -07:00
kfifo.c
klist.c
kobject_uevent.c
kobject.c	Revert "kobject: Remove redundant checks for whether ktype is NULL"	2024-02-23 09:24:58 +01:00
kstrtox.c	kstrtox: consistently use _tolower()	2023-08-21 13:46:25 -07:00
kstrtox.h
kunit_iov_iter.c	iov_iter: Kunit tests for page extraction	2023-09-09 15:11:49 -07:00
libcrc32c.c	libcrc32c: remove crc32c_impl	2023-04-17 18:01:23 +02:00
linear_ranges.c
list_debug.c	list: Introduce CONFIG_LIST_HARDENED	2023-08-15 14:57:25 -07:00
list_sort.c
list-test.c	list: test: Test the klist structure	2023-03-31 09:21:35 -06:00
llist.c
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-rtmutex.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c	lockdep/selftests: Use SBRM APIs for wait context tests	2023-07-26 12:29:13 +02:00
lockref.c	lockref: stop doing cpu_relax in the cmpxchg loop	2023-01-13 14:35:38 -06:00
logic_iomem.c
logic_pio.c	minmax: add in_range() macro	2023-08-24 16:20:18 -07:00
lru_cache.c
lshrdi3.c
Makefile	iov_iter: Kunit tests for copying to/from an iterator	2023-09-09 15:11:49 -07:00
maple_tree.c	maple_tree: fix mas_empty_area_rev() null pointer dereference	2024-05-17 12:02:30 +02:00
memcat_p.c
memcpy_kunit.c	lib: memcpy_kunit: Fix an invalid format specifier in an assertion msg	2024-03-26 18:19:18 -04:00
memory-notifier-error-inject.c
memregion.c
memweight.c
muldi3.c
net_utils.c	mac_pton: Clean up the header inclusions	2023-06-06 13:18:32 +02:00
netdev-notifier-error-inject.c
nlattr.c	netlink: add nla be16/32 types to minlen array	2024-03-06 14:48:34 +00:00
nmi_backtrace.c	nmi_backtrace: allow excluding an arbitrary CPU	2023-08-18 10:19:00 -07:00
notifier-error-inject.c	lib: remove error checking for debugfs_create_dir()	2023-08-18 10:18:55 -07:00
notifier-error-inject.h
objagg.c
of-reconfig-notifier-error-inject.c
oid_registry.c
once.c
overflow_kunit.c	overflow: Add struct_size_t() helper	2023-05-26 13:52:19 -07:00
packing.c	lib: packing: remove MODULE_LICENSE in non-modules	2023-03-09 23:08:04 -08:00
parman.c
parser.c	lib: parser: update documentation for match_NUMBER functions	2023-03-02 21:54:22 -08:00
pci_iomap.c	pci_iounmap(): Fix MMIO mapping leak	2024-04-03 15:28:17 +02:00
percpu_counter.c	pcpcntr: add group allocation/free	2023-08-25 08:06:53 -07:00
percpu_test.c
percpu-refcount.c
plist.c
pm-notifier-error-inject.c
polynomial.c
radix-tree.c	radix tree: remove unused variable	2023-08-21 13:07:22 -07:00
radix-tree.h	radix-tree: move declarations to header	2023-06-12 11:31:50 -07:00
random32.c
ratelimit.c
rbtree_test.c
rbtree.c	lib/rbtree: use '+' instead of '|' for setting color.	2023-04-18 16:39:33 -07:00
rcuref.c	atomics: Provide rcuref - scalable reference counting	2023-03-28 10:39:29 +02:00
ref_tracker.c	lib/ref_tracker: remove warnings in case of allocation failure	2023-06-05 15:28:42 -07:00
refcount.c
rhashtable.c
sbitmap.c	sbitmap: fix batching wakeup	2023-07-21 11:40:20 -06:00
scatterlist.c	Fix a potential infinite loop in extract_user_to_sg()	2024-05-17 12:02:02 +02:00
seq_buf.c	seq_buf: Add seq_buf_do_printk() helper	2023-04-25 21:03:14 -04:00
sg_pool.c
sg_split.c
siphash_kunit.c
siphash.c
slub_kunit.c	mm/slub, kunit: Use inverted data to corrupt kmem cache	2024-06-12 11:11:31 +02:00
smp_processor_id.c
sort.c
stackdepot.c	stackdepot: respect __GFP_NOLOCKDEP allocation flag	2024-05-02 16:32:46 +02:00
stackinit_kunit.c	kernel/range: Uplevel the cxl subsystem's range_contains() helper	2023-02-10 17:32:37 -08:00
stmp_device.c
strcat_kunit.c	string: Add Kunit tests for strcat() family	2023-05-16 14:08:02 -07:00
string_helpers.c	lib/string_helpers: Add kstrdup_and_replace() helper	2023-08-04 18:21:50 -07:00
string.c	string: use __builtin_memcpy() in strlcpy/strlcat	2023-06-01 11:24:50 -07:00
strncpy_from_user.c
strnlen_user.c
strscpy_kunit.c
syscall.c
test_bitmap.c	lib/bitmap: workaround const_eval test build failure	2023-07-18 13:25:37 -07:00
test_bitops.c
test_bits.c
test_blackhole_dev.c	net: blackhole_dev: fix build warning for ethh set but not used	2024-03-26 18:19:26 -04:00
test_bpf.c	bpf/tests: Enhance output on error and fix typos	2023-08-18 17:08:42 +02:00
test_debug_virtual.c
test_dynamic_debug.c
test_firmware.c	test_firmware: return ENOMEM instead of ENOSPC on failed memory allocation	2023-06-15 13:42:18 +02:00
test_fprobe.c	fprobe: Pass return address to the handlers	2023-06-06 21:39:55 +09:00
test_fpu.c
test_free_pages.c
test_hash.c
test_hexdump.c
test_hmm_uapi.h
test_hmm.c	lib/test_hmm.c: handle src_pfns and dst_pfns allocation failure	2024-06-12 11:12:08 +02:00
test_ida.c	ida: Fix crash in ida_free when the bitmap is empty	2024-01-20 11:51:46 +01:00
test_kmod.c	test_kmod: stop kernel-doc warnings	2023-01-25 14:07:21 -08:00
test_kprobes.c	test_kprobes: Add recursed kprobe test case	2023-02-21 08:52:42 +09:00
test_linear_ranges.c
test_list_sort.c
test_lockup.c
test_maple_tree.c	maple_tree: add GFP_KERNEL to allocations in mas_expected_entries()	2023-10-18 12:12:41 -07:00
test_memcat_p.c
test_meminit.c	mm, treewide: introduce NR_PAGE_ORDERS	2024-05-02 16:32:41 +02:00
test_min_heap.c
test_module.c
test_objagg.c
test_parman.c
test_printf.c	lib/vsprintf: declare no_hash_pointers in sprintf.h	2023-08-21 13:46:24 -07:00
test_ref_tracker.c	lib/ref_tracker: improve printing stats	2023-06-05 15:28:42 -07:00
test_rhashtable.c
test_scanf.c	lib: test_scanf: Add explicit type cast to result initialization in test_number_prefix()	2023-08-16 11:47:29 +02:00
test_sort.c
test_static_key_base.c
test_static_keys.c
test_string.c
test_sysctl.c	test_sysclt: Test for registering a mount point	2023-06-18 02:32:54 -07:00
test_ubsan.c
test_user_copy.c
test_uuid.c
test_vmalloc.c	lib/test_vmalloc.c: avoid garbage in page array	2023-06-12 11:31:51 -07:00
test_xarray.c
test-kstrtox.c
test-string_helpers.c	lib/test-string_helpers: replace UNESCAPE_ANY by UNESCAPE_ALL_MASK	2023-04-08 13:45:39 -07:00
textsearch.c
timerqueue.c
trace_readwrite.c
ts_bm.c	lib/ts_bm: add helper to reduce indentation and improve readability	2023-07-27 13:45:51 +02:00
ts_fsm.c
ts_kmp.c
ubsan.c	ubsan: add prototypes for internal functions	2023-05-30 16:42:01 -07:00
ubsan.h	ubsan: add prototypes for internal functions	2023-05-30 16:42:01 -07:00
ucmpdi2.c
ucs2_string.c
usercopy.c	uaccess: Add speculation barrier to copy_from_user()	2023-02-21 14:45:22 -08:00
uuid.c
vsprintf.c	lib/vsprintf: Fix %pfwf when current node refcount == 0	2024-01-01 12:42:46 +00:00
win_minmax.c	lib/win_minmax: use /* notation for regular comments	2023-01-11 16:14:21 -08:00
xarray.c	xarray: Document necessary flag in alloc functions	2023-09-05 19:01:38 -04:00
xxhash.c