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0b3d436574
linux_dsm_epyc7002/arch/riscv/kernel
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Dmitry Safonov 0b3d436574 riscv: add show_stack_loglvl() 
Currently, the log-level of show_stack() depends on a platform
realization.  It creates situations where the headers are printed with
lower log level or higher than the stacktrace (depending on a platform or
user).

Furthermore, it forces the logic decision from user to an architecture
side.  In result, some users as sysrq/kdb/etc are doing tricks with
temporary rising console_loglevel while printing their messages.  And in
result it not only may print unwanted messages from other CPUs, but also
omit printing at all in the unlucky case where the printk() was deferred.

Introducing log-level parameter and KERN_UNSUPPRESSED [1] seems an easier
approach than introducing more printk buffers.  Also, it will consolidate
printings with headers.

Introduce show_stack_loglvl(), that eventually will substitute
show_stack().

[1]: https://lore.kernel.org/lkml/20190528002412.1625-1-dima@arista.com/T/#u

Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Link: http://lkml.kernel.org/r/20200418201944.482088-28-dima@arista.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-09 09:39:11 -07:00
..
vdso riscv: add Linux note to vdso 2020-05-04 14:22:34 -07:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
asm-offsets.c riscv: abstract out CSR names for supervisor vs machine mode 2019-11-05 09:20:42 -08:00
cacheinfo.c riscv: cacheinfo: Implement cache_get_priv_group with a generic ops structure 2020-05-20 15:05:05 -07:00
clint.c riscv: provide native clint access for M-mode 2019-11-17 15:17:39 -08:00
cpu_ops_sbi.c RISC-V: Support cpu hotplug 2020-03-31 11:28:30 -07:00
cpu_ops_spinwait.c RISC-V: Add cpu_ops and modify default booting method 2020-03-31 11:25:56 -07:00
cpu_ops.c riscv: force __cpu_up_ variables to put in data section 2020-05-04 15:03:25 -07:00
cpu-hotplug.c RISC-V: Support cpu hotplug 2020-03-31 11:28:30 -07:00
cpu.c RISC-V: Remove unsupported isa string info print 2019-10-28 11:13:59 -07:00
cpufeature.c RISC-V: Add bitmap reprensenting ISA features common across CPUs 2020-05-04 14:08:59 -07:00
entry.S RISC-V Patches for the 5.7 Merge Window, Part 1 2020-04-09 10:51:30 -07:00
fpu.S riscv: abstract out CSR names for supervisor vs machine mode 2019-11-05 09:20:42 -08:00
ftrace.c riscv: Use text_mutex instead of patch_lock 2020-05-18 11:38:16 -07:00
head.h riscv: add prototypes for assembly language functions from head.S 2019-10-28 00:46:00 -07:00
head.S RISC-V: Skip setting up PMPs on traps 2020-05-18 11:38:08 -07:00
irq.c riscv: prefix IRQ_ macro names with an RV_ namespace 2020-01-04 21:48:59 -08:00
kgdb.c riscv: Add SW single-step support for KDB 2020-05-18 11:38:12 -07:00
Makefile riscv: Add KGDB support 2020-05-18 11:38:10 -07:00
mcount-dyn.S
mcount.S
module-sections.c riscv: add missing header file includes 2019-10-28 00:46:01 -07:00
module.c riscv: avoid the PIC offset of static percpu data in module beyond 2G limits 2020-03-03 10:27:45 -08:00
module.lds
patch.c riscv: Use text_mutex instead of patch_lock 2020-05-18 11:38:16 -07:00
perf_callchain.c riscv: abstract out CSR names for supervisor vs machine mode 2019-11-05 09:20:42 -08:00
perf_event.c riscv: perf_event: Make some funciton static 2020-05-11 13:48:19 -07:00
perf_regs.c riscv: Add support for perf registers sampling 2019-09-05 00:48:58 -07:00
process.c RISC-V: gp_in_global needs register keyword 2020-05-21 13:28:26 -07:00
ptrace.c riscv: fix seccomp reject syscall code path 2020-03-05 13:58:15 -08:00
reset.c riscv: cleanup the default power off implementation 2019-11-13 13:22:52 -08:00
riscv_ksyms.c riscv: Add KASAN support 2020-01-22 13:09:58 -08:00
sbi.c riscv: sbi: Fix undefined reference to sbi_shutdown 2020-04-21 16:15:09 -07:00
setup.c riscv: Allow device trees to be built into the kernel 2020-05-18 11:38:05 -07:00
signal.c riscv: add nommu support 2019-11-17 15:17:39 -08:00
smp.c RISC-V: Export riscv_cpuid_to_hartid_mask() API 2020-05-04 14:08:58 -07:00
smpboot.c RISC-V: Add supported for ordered booting method using HSM 2020-03-31 11:27:50 -07:00
soc.c riscv: Allow device trees to be built into the kernel 2020-05-18 11:38:05 -07:00
stacktrace.c riscv: add show_stack_loglvl() 2020-06-09 09:39:11 -07:00
sys_riscv.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286 2019-06-05 17:36:37 +02:00
syscall_table.c riscv: add missing header file includes 2019-10-28 00:46:01 -07:00
time.c riscv: add missing header file includes 2019-10-28 00:46:01 -07:00
traps_misaligned.c riscv: Unaligned load/store handling for M_MODE 2020-04-03 10:45:33 -07:00
traps.c riscv: Add KGDB support 2020-05-18 11:38:10 -07:00
vdso.c riscv: add missing header file includes 2019-10-28 00:46:01 -07:00
vmlinux.lds.S riscv: Allow device trees to be built into the kernel 2020-05-18 11:38:05 -07:00