linux-stable/lib
John Ogness 93d102f094 printk: remove safe buffers
With @logbuf_lock removed, the high level printk functions for
storing messages are lockless. Messages can be stored from any
context, so there is no need for the NMI and safe buffers anymore.
Remove the NMI and safe buffers.

Although the safe buffers are removed, the NMI and safe context
tracking is still in place. In these contexts, store the message
immediately but still use irq_work to defer the console printing.

Since printk recursion tracking is in place, safe context tracking
for most of printk is not needed. Remove it. Only safe context
tracking relating to the console and console_owner locks is left
in place. This is because the console and console_owner locks are
needed for the actual printing.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20210715193359.25946-4-john.ogness@linutronix.de
2021-07-26 15:09:34 +02:00
..
842
crypto crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c 2021-04-22 17:31:29 +10:00
dim Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" 2020-11-18 14:15:17 -06:00
fonts Fonts: font_ter16x32: Update font with new upstream Terminus release 2021-01-07 21:06:25 +01:00
kunit kunit: make test->lock irq safe 2021-06-29 10:53:46 -07:00
livepatch
lz4 lib/lz4: explicitly support in-place decompression 2020-12-15 22:46:16 -08:00
lzo lib/lzo/lzo1x_compress.c: make lzogeneric1x_1_compress() static 2020-12-15 22:46:19 -08:00
math - removed get_fs/set_fs 2021-04-29 11:28:08 -07:00
mpi
pldmfw
raid6 lib/raid6: Let $(UNROLL) rules work with macOS userland 2021-01-04 10:38:11 +09:00
reed_solomon
vdso lib/vdso: Add vdso_data pointer as input to __arch_get_timens_vdso_data() 2021-04-14 23:04:44 +10:00
xz Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" 2020-11-18 14:15:17 -06:00
zlib_deflate
zlib_dfltcc zlib: move EXPORT_SYMBOL() and MODULE_LICENSE() out of dfltcc_syms.c 2020-12-29 15:36:49 -08:00
zlib_inflate lib: Fix fall-through warnings for Clang 2020-11-19 07:23:47 -06:00
zstd lib: Fix fall-through warnings for Clang 2020-11-19 07:23:47 -06:00
.gitignore .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
argv_split.c
ashldi3.c
ashrdi3.c
asn1_decoder.c Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" 2020-11-18 14:15:17 -06:00
asn1_encoder.c lib: Add ASN.1 encoder 2021-04-14 16:30:30 +03:00
assoc_array.c Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" 2020-11-18 14:15:17 -06:00
atomic64.c locking/atomic: atomic64: support ARCH_ATOMIC 2021-05-26 13:20:50 +02:00
atomic64_test.c
audit.c
bcd.c
bch.c lib/bch.c: fix a typo in the file bch.c 2021-05-06 19:24:12 -07:00
bitfield_kunit.c
bitmap.c gpio updates for v5.13 2021-05-05 12:39:29 -07:00
bitrev.c
bootconfig.c Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" 2020-11-18 14:15:17 -06:00
bsearch.c
btree.c
bucket_locks.c
bug.c bug: Assign values once in bug_get_file_line() 2021-04-01 09:54:37 +01:00
build_OID_registry
buildid.c bpf: Add size arg to build_id_parse function 2021-01-14 19:29:58 -08:00
bust_spinlocks.c
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline.c lib/cmdline: Export next_arg() for being used in modules 2021-05-05 16:07:40 +02:00
cmdline_kunit.c lib/cmdline: Allow get_options() to take 0 to validate the input 2021-02-15 11:43:31 +01:00
cmpdi2.c
compat_audit.c
cpu_rmap.c
cpumask.c Revert "lib: Restrict cpumask_local_spread to houskeeping CPUs" 2021-02-05 23:28:29 +01:00
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
crc4.c
crc7.c lib/crc7: fix a kernel-doc markup 2021-01-21 14:06:00 -07:00
crc8.c lib: crc8: pointer to data block should be const 2021-05-06 19:24:12 -07:00
crc16.c
crc32.c
crc32defs.h
crc32test.c lib/crc32test: remove extra local_irq_disable/enable 2020-11-02 12:14:19 -08:00
crc64.c lib: crc64: fix kernel-doc warning 2021-06-05 08:58:12 -07:00
ctype.c
debug_info.c
debug_locks.c locking/lockdep: Improve noinstr vs errors 2021-06-22 13:56:43 +02:00
debugobjects.c
dec_and_lock.c
decompress.c
decompress_bunzip2.c
decompress_inflate.c
decompress_unlz4.c
decompress_unlzma.c lib: fix inconsistent indenting in process_bit1() 2021-05-06 19:24:12 -07:00
decompress_unlzo.c
decompress_unxz.c
decompress_unzstd.c
devmem_is_allowed.c lib: Add a generic version of devmem_is_allowed() 2020-12-11 12:28:08 -08:00
devres.c asm-generic/io.h: Add a non-posted variant of ioremap() 2021-04-08 20:18:38 +09:00
digsig.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
dump_stack.c Merge branch 'akpm' (patches from Andrew) 2021-06-29 17:29:11 -07:00
dynamic_debug.c dyndbg: drop uninformative vpr_info 2021-05-13 20:50:23 +02:00
dynamic_queue_limits.c
earlycpio.c lib: remove "expecting prototype" kernel-doc warnings 2021-04-16 16:10:37 -07:00
errname.c kernel.h: split out mathematical helpers 2020-12-15 22:46:15 -08:00
error-inject.c fault-injection: handle EI_ETYPE_TRUE 2020-12-15 22:46:19 -08:00
errseq.c kernel.h: split out mathematical helpers 2020-12-15 22:46:15 -08:00
extable.c sparc32: switch to generic extables 2021-01-03 20:05:18 -05:00
fault-inject-usercopy.c
fault-inject.c
fdt.c
fdt_addresses.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
find_bit.c lib: add fast path for find_first_*_bit() and find_last_bit() 2021-05-06 19:24:12 -07:00
find_bit_benchmark.c
flex_proportions.c
gen_crc32table.c
gen_crc64table.c
genalloc.c lib/genalloc: add parameter description to fix doc compile warning 2021-05-06 19:24:12 -07:00
generic-radix-tree.c
glob.c Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" 2020-11-18 14:15:17 -06:00
globtest.c
hexdump.c
hweight.c
idr.c
inflate.c
interval_tree.c
interval_tree_test.c
iomap.c
iomap_copy.c
iommu-helper.c
iov_iter.c iov_iter: lift memzero_page() to highmem.h 2021-05-05 11:27:27 -07:00
irq_poll.c
irq_regs.c
is_single_threaded.c
kasprintf.c
Kconfig lib: Add ASN.1 encoder 2021-04-14 16:30:30 +03:00
Kconfig.debug Merge branch 'akpm' (patches from Andrew) 2021-06-29 17:29:11 -07:00
Kconfig.kasan kasan: add memory corruption identification support for hardware tag-based mode 2021-06-29 10:53:53 -07:00
Kconfig.kcsan kcsan: Make test follow KUnit style recommendations 2021-03-08 14:27:43 -08:00
Kconfig.kfence kfence: await for allocation using wait_event 2021-05-05 11:27:27 -07:00
Kconfig.kgdb
Kconfig.ubsan ubsan: remove overflow checks 2021-02-26 09:41:05 -08:00
kfifo.c
klist.c
kobject.c
kobject_uevent.c kobject_uevent: remove warning in init_uevent_argv() 2021-04-10 11:09:41 +02:00
kstrtox.c lib: vsprintf: Fix handling of number field widths in vsscanf 2021-05-19 15:05:11 +02:00
kstrtox.h lib: vsprintf: Fix handling of number field widths in vsscanf 2021-05-19 15:05:11 +02:00
libcrc32c.c
linear_ranges.c lib/linear_ranges: fix repeated words & one typo 2020-12-28 12:24:47 +00:00
list-test.c
list_debug.c
list_sort.c lib/list_sort.c: fix typo in function description 2021-05-06 19:24:12 -07:00
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/selftest: Remove wait-type RCU_CALLBACK tests 2021-06-22 16:42:08 +02:00
lockref.c
logic_pio.c PCI: Fix pci_register_io_range() memory leak 2021-02-17 17:31:06 -06:00
lru_cache.c lib: remove "expecting prototype" kernel-doc warnings 2021-04-16 16:10:37 -07:00
lshrdi3.c
Makefile Merge branch 'akpm' (patches from Andrew) 2021-06-29 17:29:11 -07:00
memcat_p.c
memory-notifier-error-inject.c
memregion.c
memweight.c
muldi3.c
net_utils.c
netdev-notifier-error-inject.c
nlattr.c net: fix nla_strcmp to handle more then one trailing null character 2021-05-05 12:48:46 -07:00
nmi_backtrace.c printk: remove safe buffers 2021-07-26 15:09:34 +02:00
nodemask.c
notifier-error-inject.c
notifier-error-inject.h
objagg.c
of-reconfig-notifier-error-inject.c
oid_registry.c x509: Detect sm2 keys by their parameters OID 2021-03-26 19:41:58 +11:00
once.c
packing.c
parman.c lib: remove "expecting prototype" kernel-doc warnings 2021-04-16 16:10:37 -07:00
parser.c lib: parser: clean up kernel-doc 2021-05-06 19:24:12 -07:00
pci_iomap.c
percpu-refcount.c percpu_ref: Don't opencode percpu_ref_is_dying 2021-05-13 03:27:38 +00:00
percpu_counter.c lib/percpu_counter: tame kernel-doc compile warning 2021-05-06 19:24:12 -07:00
percpu_test.c
plist.c
pm-notifier-error-inject.c
radix-tree.c lib: remove "expecting prototype" kernel-doc warnings 2021-04-16 16:10:37 -07:00
random32.c
ratelimit.c
rbtree.c
rbtree_test.c
refcount.c
rhashtable.c
sbitmap.c scsi: sbitmap: Add sbitmap_calculate_shift() helper 2021-03-04 17:36:59 -05:00
scatterlist.c
seq_buf.c
sg_pool.c
sg_split.c
sha1.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
show_mem.c
siphash.c Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" 2020-11-18 14:15:17 -06:00
slub_kunit.c mm/slub, kunit: add a KUnit test for SLUB debugging functionality 2021-06-29 10:53:46 -07:00
smp_processor_id.c lib/smp_processor_id: Use is_percpu_thread() instead of nr_cpus_allowed 2021-05-19 10:51:40 +02:00
sort.c
stackdepot.c lib: stackdepot: turn depot_lock spinlock to raw_spinlock 2021-05-06 19:24:12 -07:00
stmp_device.c
string.c lib/string: remove unnecessary #undefs 2020-12-15 22:46:16 -08:00
string_helpers.c
strncpy_from_user.c lib/strncpy_from_user.c: Mask out bytes after NUL terminator. 2020-11-19 11:56:16 -08:00
strnlen_user.c
syscall.c sched: Change task_struct::state 2021-06-18 11:43:09 +02:00
test-kstrtox.c
test-string_helpers.c
test_bitmap.c lib: test_bitmap: add tests for "N" alias 2021-03-08 14:16:58 -08:00
test_bitops.c
test_bits.c
test_blackhole_dev.c
test_bpf.c test_bpf: Remove EXPECTED_FAIL flag from bpf_fill_maxinsns11 2021-01-20 14:13:48 -08:00
test_debug_virtual.c
test_firmware.c lib: cleanup kstrto*() usage 2020-12-15 22:46:16 -08:00
test_fpu.c selftests/fpu: Fix debugfs_simple_attr.cocci warning 2021-01-18 11:03:26 +01:00
test_free_pages.c lib/test_free_pages.c: add basic progress indicators 2020-12-15 22:46:16 -08:00
test_hash.c
test_hexdump.c
test_hmm.c lib/test_hmm: use vma_lookup() in dmirror_migrate() 2021-06-29 10:53:52 -07:00
test_hmm_uapi.h
test_ida.c
test_kasan.c kasan: test: improve failure message in KUNIT_EXPECT_KASAN_FAIL() 2021-06-29 10:53:52 -07:00
test_kasan_module.c lib/test_kasan_module.c: suppress unused var warning 2021-04-09 14:54:23 -07:00
test_kmod.c lib: cleanup kstrto*() usage 2020-12-15 22:46:16 -08:00
test_linear_ranges.c
test_list_sort.c treewide: Change list_sort to use const pointers 2021-04-08 16:04:22 -07:00
test_lockup.c lib/test_lockup.c: minimum fix to get it compiled on PREEMPT_RT 2020-12-15 22:46:16 -08:00
test_memcat_p.c
test_meminit.c
test_min_heap.c
test_module.c
test_objagg.c
test_overflow.c
test_parman.c
test_printf.c printk changes for 5.14 2021-06-29 12:07:18 -07:00
test_rhashtable.c rhashtable: avoid -Wrestrict warning on overlapping sprintf output 2021-03-24 15:16:09 -07:00
test_scanf.c lib: test_scanf: Remove pointless use of type_min() with unsigned types 2021-05-27 15:38:03 +02:00
test_siphash.c
test_sort.c
test_stackinit.c
test_static_key_base.c
test_static_keys.c
test_string.c
test_strscpy.c
test_sysctl.c
test_ubsan.c ubsan: remove overflow checks 2021-02-26 09:41:05 -08:00
test_user_copy.c
test_uuid.c
test_vmalloc.c lib/test_vmalloc.c: add a new 'nr_threads' parameter 2021-04-30 11:20:40 -07:00
test_xarray.c XArray: Fix splitting to non-zero orders 2021-03-30 13:42:33 -04:00
textsearch.c
timerqueue.c rbtree, timerqueue: Use rb_add_cached() 2021-02-17 14:08:01 +01:00
ts_bm.c
ts_fsm.c Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" 2020-11-18 14:15:17 -06:00
ts_kmp.c
ubsan.c ubsan: remove overflow checks 2021-02-26 09:41:05 -08:00
ubsan.h ubsan: implement __ubsan_handle_alignment_assumption 2021-02-05 11:03:47 -08:00
ucmpdi2.c
ucs2_string.c
usercopy.c
uuid.c
vsprintf.c Merge branch 'akpm' (patches from Andrew) 2021-06-29 17:29:11 -07:00
win_minmax.c
xarray.c XArray: Fix splitting to non-zero orders 2021-03-30 13:42:33 -04:00
xxhash.c