Conor Dooley 2a8db5ec4a RISC-V: Don't check text_mutex during stop_machine ... We're currently using stop_machine() to update ftrace & kprobes, which means that the thread that takes text_mutex during may not be the same as the thread that eventually patches the code. This isn't actually a race because the lock is still held (preventing any other concurrent accesses) and there is only one thread running during stop_machine(), but it does trigger a lockdep failure. This patch just elides the lockdep check during stop_machine. Fixes: c15ac4fd60 ("riscv/ftrace: Add dynamic function tracer support") Suggested-by: Steven Rostedt <rostedt@goodmis.org> Reported-by: Changbin Du <changbin.du@gmail.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com> Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230303143754.4005217-1-conor.dooley@microchip.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>		2023-03-09 14:58:51 -08:00
..
vdso	riscv: cpu_relax: switch to riscv_has_extension_likely()	2023-01-31 23:29:43 -08:00
alternative-macros.h	Merge patch series "dt-bindings: Add a cpu-capacity property for RISC-V"	2023-02-14 19:29:46 -08:00
alternative.h	riscv: switch to relative alternative entries	2023-01-31 23:29:41 -08:00
asm-extable.h	riscv: extable: add a dedicated uaccess handler	2022-01-05 17:53:29 -08:00
asm-offsets.h
asm-prototypes.h	riscv: add VMAP_STACK overflow detection	2021-07-06 12:11:38 -07:00
asm.h	Merge patch series "RISC-V: Align the shadow stack"	2022-12-12 09:30:37 -08:00
atomic.h	riscv: atomic: Add custom conditional atomic operation implementation	2022-05-21 10:31:47 -07:00
barrier.h	riscv: introduce nops and __nops macros for NOP sequences	2022-07-21 17:17:29 -07:00
bitops.h	include: move find.h from asm_generic to linux	2022-01-15 08:47:31 -08:00
bug.h	bug: Use normal relative pointers in 'struct bug_entry'	2022-05-19 23:46:10 +02:00
cache.h	riscv: Add support for non-coherent devices using zicbom extension	2022-07-28 15:30:51 -07:00
cacheflush.h	Merge patch series "RISC-V: Ensure Zicbom has a valid block size"	2022-12-09 19:13:01 -08:00
cacheinfo.h	riscv: Add cache information in AUX vector	2020-09-15 18:46:08 -07:00
clint.h	RISC-V: Resurrect the MMIO timer implementation for M-mode systems	2020-09-19 13:21:11 -07:00
clocksource.h	riscv: use vDSO common flow to reduce the latency of the time-related functions	2020-06-10 19:47:16 -07:00
cmpxchg.h	riscv: atomic: Cleanup unnecessary definition	2022-05-21 10:31:45 -07:00
compat.h	riscv: compat: Add basic compat data type implementation	2022-04-26 13:36:12 -07:00
cpu_ops.h	RISC-V: Declare cpu_ops_spinwait in <asm/cpu_ops.h>	2022-08-11 13:06:47 -07:00
cpu_ops_sbi.h	riscv: ensure cpu_ops_sbi is declared	2022-08-11 13:46:51 -07:00
cpuidle.h	RISC-V: Enable CPU_IDLE drivers	2022-03-10 09:29:21 -08:00
csr.h	RISC-V: Add Sstc extension support	2022-08-11 14:41:52 -07:00
current.h	riscv: Rename "sp_in_global" to "current_stack_pointer"	2022-03-30 15:15:27 -07:00
delay.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286	2019-06-05 17:36:37 +02:00
efi.h	efi: Discover BTI support in runtime services regions	2023-02-04 09:19:02 +01:00
elf.h	RISC-V: Only provide the single-letter extensions in HWCAP	2023-02-21 17:21:14 -08:00
errata_list.h	Merge patch series "Remove toolchain dependencies for Zicbom"	2023-02-14 21:33:27 -08:00
extable.h	riscv: extable: add type and data fields	2022-01-05 17:52:54 -08:00
fence.h	riscv/spinlock: Strengthen implementations with fences	2018-04-02 19:59:43 -07:00
fixmap.h	riscv: remove FIXMAP_PAGE_IO and fall back to its default value	2022-05-11 21:36:33 -07:00
ftrace.h	RISC-V: Don't check text_mutex during stop_machine	2023-03-09 14:58:51 -08:00
futex.h	riscv: extable: add a dedicated uaccess handler	2022-01-05 17:53:29 -08:00
gdb_xml.h	riscv: Avoid kgdb.h including gdb_xml.h to solve unused-const-variable warning	2020-07-09 20:12:28 -07:00
gpr-num.h	riscv: Add X register names to gpr-nums	2022-10-02 10:17:58 +05:30
hugetlb.h	riscv/mm: add arch hook arch_clear_hugepage_flags	2022-12-02 11:26:02 -08:00
hwcap.h	RISC-V Patches for the 6.3 Merge Window, Part 1	2023-02-25 11:14:08 -08:00
image.h	RISC-V: Typo fixes in image header and documentation.	2019-12-19 09:32:45 -07:00
insn-def.h	RISC-V: replace cbom instructions with an insn-def	2023-02-14 21:29:52 -08:00
insn.h	riscv: Add header include guards to insn.h	2023-02-21 17:22:54 -08:00
io.h	RISC-V: Fix MEMREMAP_WB for systems with Svpbmt	2022-12-08 15:43:58 -08:00
irq.h	riscv: irq: Fix no prototype warning	2021-03-09 20:46:00 -08:00
irq_work.h	riscv: Fix irq_work when SMP is disabled	2022-06-01 21:46:31 -07:00
irqflags.h	riscv: abstract out CSR names for supervisor vs machine mode	2019-11-05 09:20:42 -08:00
jump_label.h	riscv: jump_label: Fixup unaligned arch_static_branch function	2023-02-21 17:21:16 -08:00
kasan.h	riscv: Implement sv48 support	2022-01-19 17:54:09 -08:00
Kbuild	RISC-V: Move to queued RW locks	2022-05-11 11:50:10 -07:00
kdebug.h	riscv: Add KGDB support	2020-05-18 11:38:10 -07:00
kexec.h	RISC-V: kexec: Fix memory leak of fdt buffer	2022-12-05 10:59:51 -08:00
kfence.h	riscv: Enable KFENCE for riscv64	2021-06-30 20:55:41 -07:00
kgdb.h	riscv: Avoid kgdb.h including gdb_xml.h to solve unused-const-variable warning	2020-07-09 20:12:28 -07:00
kprobes.h	riscv: add riscv rethook implementation	2022-12-02 13:04:05 -08:00
kvm_host.h	KVM/riscv changes for 6.3	2023-02-15 12:33:28 -05:00
kvm_types.h	KVM: RISC-V: Use common KVM implementation of MMU memory caches	2022-01-06 14:38:50 +05:30
kvm_vcpu_fp.h	RISC-V: KVM: Improve ISA extension by using a bitmap	2022-07-29 17:14:11 +05:30
kvm_vcpu_insn.h	RISC-V: KVM: Add extensible CSR emulation framework	2022-07-29 17:14:53 +05:30
kvm_vcpu_pmu.h	RISC-V: KVM: Support firmware events	2023-02-07 20:36:06 +05:30
kvm_vcpu_sbi.h	RISC-V: KVM: Modify SBI extension handler to return SBI error code	2023-02-07 20:35:45 +05:30
kvm_vcpu_timer.h	RISC-V: KVM: Fix kvm_riscv_vcpu_timer_pending() for Sstc	2022-10-21 11:52:45 +05:30
linkage.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286	2019-06-05 17:36:37 +02:00
mmio.h	riscv: Use generic pgprot_* macros from <linux/pgtable.h>	2020-07-30 11:37:46 -07:00
mmiowb.h	riscv: mmiowb: Fix implicit declaration of function 'smp_processor_id'	2020-05-13 17:11:46 -07:00
mmu.h	riscv: mm: notify remote harts about mmu cache updates	2022-12-08 15:18:16 -08:00
mmu_context.h	riscv: add ASID-based tlbflushing methods	2021-06-30 20:55:39 -07:00
mmzone.h	riscv: Add numa support for riscv64 platform	2021-01-14 15:08:58 -08:00
module.h	riscv: module: move find_section to module.h	2023-01-31 23:29:39 -08:00
module.lds.h	riscv module: remove (NOLOAD)	2022-03-29 14:31:07 -07:00
numa.h	riscv: Add numa support for riscv64 platform	2021-01-14 15:08:58 -08:00
page.h	mm, arch: add generic implementation of pfn_valid() for FLATMEM	2023-02-09 16:51:41 -08:00
patch.h	RISC-V: Don't check text_mutex during stop_machine	2023-03-09 14:58:51 -08:00
pci.h	RISC-V Patches for the 5.20 Merge Window, Part 1	2022-08-06 15:04:48 -07:00
perf_event.h	RISC-V: Remove the current perf implementation	2022-03-21 14:58:12 -07:00
pgalloc.h	riscv: Sync efi page table's kernel mappings before switching	2022-11-28 16:36:34 -08:00
pgtable-32.h	riscv: add RISC-V Svpbmt extension support	2022-05-11 21:36:33 -07:00
pgtable-64.h	riscv: Fix P4D_SHIFT definition for 3-level page table mode	2022-12-12 22:38:18 -08:00
pgtable-bits.h	riscv/mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE	2023-02-02 22:33:09 -08:00
pgtable.h	RISC-V Patches for the 6.3 Merge Window, Part 1	2023-02-25 11:14:08 -08:00
probes.h	riscv: Add kprobes supported	2021-01-14 15:09:06 -08:00
processor.h	kernel: exit: cleanup release_thread()	2022-09-11 21:55:07 -07:00
ptdump.h	riscv: support DEBUG_WX	2020-06-03 20:09:50 -07:00
ptrace.h	riscv: ptrace: add argn syntax	2021-07-05 20:53:09 -07:00
sbi.h	RISC-V: Improve SBI PMU extension related definitions	2023-02-07 20:35:36 +05:30
seccomp.h	riscv: Enable seccomp architecture tracking	2020-11-20 11:16:35 -08:00
sections.h	riscv: Map the kernel with correct permissions the first time	2021-06-30 21:18:58 -07:00
semihost.h	riscv: Implement semihost.h for earlycon semihost driver	2023-01-19 14:58:19 +01:00
set_memory.h	riscv: Map the kernel with correct permissions the first time	2021-06-30 21:18:58 -07:00
signal.h	RISC-V: Fix do_notify_resume / do_work_pending prototype	2023-01-24 22:13:15 -08:00
signal32.h	riscv: compat: signal: Add rt_frame implementation	2022-05-17 16:37:21 -07:00
smp.h	riscv: kexec: Fixup crash_smp_send_stop without multi cores	2022-11-29 21:50:59 -08:00
soc.h	riscv: Fix builtin DTB handling	2021-01-07 19:00:50 -08:00
sparsemem.h	riscv: Allow to dynamically define VA_BITS	2022-01-19 17:54:07 -08:00
stackprotector.h	stackprotector: actually use get_random_canary()	2022-11-18 02:18:10 +01:00
stacktrace.h	riscv: Add dump stack in show_regs	2021-01-14 15:09:11 -08:00
string.h	RISC-V: add infrastructure to allow different str* implementations	2023-01-31 11:43:23 -08:00
suspend.h	RISC-V: Add arch functions for non-retentive suspend entry/exit	2022-03-10 09:29:31 -08:00
switch_to.h	riscv: fpu: switch has_fpu() to riscv_has_extension_likely()	2023-01-31 23:29:38 -08:00
syscall.h	riscv: compat: syscall: Add compat_sys_call_table implementation	2022-04-26 13:36:25 -07:00
thread_info.h	RISC-V: add a spin_shadow_stack declaration	2023-02-22 06:48:30 -08:00
timex.h	riscv: use fallback for random_get_entropy() instead of zero	2022-05-13 23:59:23 +02:00
tlb.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286	2019-06-05 17:36:37 +02:00
tlbflush.h	riscv: mm: notify remote harts about mmu cache updates	2022-12-08 15:18:16 -08:00
uaccess.h	riscv: uaccess: fix type of 0 variable on error in get_user()	2023-01-05 12:30:41 -08:00
unistd.h	riscv: Wire up memfd_secret in UAPI header	2022-06-01 21:46:36 -07:00
uprobes.h	riscv: Add uprobes supported	2021-01-14 15:09:08 -08:00
vdso.h	riscv: alternative: patch alternatives in the vDSO	2023-01-31 23:29:42 -08:00
vendorid_list.h	riscv: add memory-type errata for T-Head	2022-05-11 21:36:33 -07:00
vermagic.h	arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h>	2020-04-23 10:50:26 +09:00
vmalloc.h	riscv: Enable HAVE_ARCH_HUGE_VMAP for 64BIT	2022-10-28 17:10:01 -07:00
word-at-a-time.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286	2019-06-05 17:36:37 +02:00
xip_fixup.h	RISC-V: Split out the XIP fixups into their own file	2022-05-25 14:43:33 -07:00