Catalin Marinas 298a32b132 kmemleak: powerpc: skip scanning holes in the .bss section ... Commit 2d4f567103 ("KVM: PPC: Introduce kvm_tmp framework") adds kvm_tmp[] into the .bss section and then free the rest of unused spaces back to the page allocator. kernel_init kvm_guest_init kvm_free_tmp free_reserved_area free_unref_page free_unref_page_prepare With DEBUG_PAGEALLOC=y, it will unmap those pages from kernel. As the result, kmemleak scan will trigger a panic when it scans the .bss section with unmapped pages. This patch creates dedicated kmemleak objects for the .data, .bss and potentially .data..ro_after_init sections to allow partial freeing via the kmemleak_free_part() in the powerpc kvm_free_tmp() function. Link: http://lkml.kernel.org/r/20190321171917.62049-1-catalin.marinas@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reported-by: Qian Cai <cai@lca.pw> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Tested-by: Qian Cai <cai@lca.pw> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Avi Kivity <avi@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krcmar <rkrcmar@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2019-04-05 16:02:30 -10:00
..
syscalls	powerpc updates for 5.1	2019-03-07 12:56:26 -08:00
trace	powerpc/64: Replace CURRENT_THREAD_INFO with PACA_THREAD_INFO	2019-02-23 22:31:40 +11:00
vdso32	powerpc: Enable kcov	2019-02-23 21:04:32 +11:00
vdso64	powerpc/vdso64: Fix CLOCK_MONOTONIC inconsistencies across Y2038	2019-03-18 19:26:38 +11:00
.gitignore
align.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
asm-offsets.c	powerpc/64: Replace CURRENT_THREAD_INFO with PACA_THREAD_INFO	2019-02-23 22:31:40 +11:00
audit.c
btext.c
cacheinfo.c
cacheinfo.h
compat_audit.c
cpu_setup_6xx.S	powerpc/6xx: fix setup and use of SPRN_SPRG_PGDIR for hash32	2019-03-19 00:30:19 +11:00
cpu_setup_44x.S
cpu_setup_fsl_booke.S
cpu_setup_pa6t.S
cpu_setup_power.S
cpu_setup_ppc970.S
cputable.c
crash_dump.c
crash.c
dbell.c
dma-iommu.c	powerpc/dma: use the dma_direct mapping routines	2019-02-18 22:41:04 +11:00
dma-mask.c	dma-mapping, powerpc: simplify the arch dma_set_mask override	2019-02-18 22:41:03 +11:00
dma-swiotlb.c	powerpc/dma: use the generic direct mapping bypass	2019-02-18 22:41:04 +11:00
dt_cpu_ftrs.c	treewide: add checks for the return value of memblock_alloc*()	2019-03-12 10:04:02 -07:00
eeh_cache.c	powerpc/eeh_cache: Bump log level of eeh_addr_cache_print()	2019-02-22 00:10:14 +11:00
eeh_dev.c
eeh_driver.c	powerpc/eeh: Improve recovery of passed-through devices	2019-02-05 11:55:44 +11:00
eeh_event.c	powerpc/eeh: Add eeh_force_recover to debugfs	2019-02-22 00:10:15 +11:00
eeh_pe.c	powerpc/eeh: Add include_passed to eeh_pe_state_clear()	2019-02-05 11:55:43 +11:00
eeh_sysfs.c	powerpc/eeh: Add include_passed to eeh_pe_state_clear()	2019-02-05 11:55:43 +11:00
eeh.c	powerpc/eeh: Add eeh_force_recover to debugfs	2019-02-22 00:10:15 +11:00
entry_32.S	powerpc/32: Clear on-stack exception marker upon exception return	2019-03-04 00:37:23 +11:00
entry_64.S	powerpc/64: Replace CURRENT_THREAD_INFO with PACA_THREAD_INFO	2019-02-23 22:31:40 +11:00
epapr_hcalls.S	powerpc/32: Remove CURRENT_THREAD_INFO and rename TI_CPU	2019-02-23 22:31:40 +11:00
epapr_paravirt.c
exceptions-64e.S	powerpc/fsl: Fix the flush of branch predictor.	2019-02-27 22:52:38 +11:00
exceptions-64s.S	powerpc/64s: Fix unrelocated interrupt trampoline address test	2019-03-02 00:25:47 +11:00
fadump.c
firmware.c
fpu.S
fsl_booke_entry_mapping.S
head_8xx.S	powerpc: Rename THREAD_INFO to TASK_STACK	2019-02-23 22:31:40 +11:00
head_32.S	powerpc/6xx: fix setup and use of SPRN_SPRG_PGDIR for hash32	2019-03-19 00:30:19 +11:00
head_40x.S	powerpc: Rename THREAD_INFO to TASK_STACK	2019-02-23 22:31:40 +11:00
head_44x.S	powerpc: 'current_set' is now a table of task_struct pointers	2019-02-23 22:31:40 +11:00
head_64.S	powerpc/64: Simplify __secondary_start paca->kstack handling	2019-02-23 22:31:39 +11:00
head_booke.h	powerpc: Activate CONFIG_THREAD_INFO_IN_TASK	2019-02-23 22:31:40 +11:00
head_fsl_booke.S	powerpc: remove dead code in head_fsl_booke.S	2019-03-05 16:38:45 +11:00
hw_breakpoint.c
idle_6xx.S	powerpc/32: Remove CURRENT_THREAD_INFO and rename TI_CPU	2019-02-23 22:31:40 +11:00
idle_book3e.S	powerpc/64: Replace CURRENT_THREAD_INFO with PACA_THREAD_INFO	2019-02-23 22:31:40 +11:00
idle_book3s.S
idle_e500.S	powerpc/32: Remove CURRENT_THREAD_INFO and rename TI_CPU	2019-02-23 22:31:40 +11:00
idle_power4.S	powerpc/64: Replace CURRENT_THREAD_INFO with PACA_THREAD_INFO	2019-02-23 22:31:40 +11:00
idle.c
ima_kexec.c
io-workarounds.c
io.c
iomap.c
iommu.c	IOMMU Updates for Linux v4.21	2019-01-01 15:55:29 -08:00
irq.c	powerpc: clean stack pointers naming	2019-02-23 22:31:40 +11:00
isa-bridge.c
jump_label.c	jump_label: move 'asm goto' support test to Kconfig	2019-01-06 09:46:51 +09:00
kexec_elf_64.c
kgdb.c	powerpc: Activate CONFIG_THREAD_INFO_IN_TASK	2019-02-23 22:31:40 +11:00
kprobes-ftrace.c
kprobes.c
kvm_emul.S
kvm.c	kmemleak: powerpc: skip scanning holes in the .bss section	2019-04-05 16:02:30 -10:00
l2cr_6xx.S
legacy_serial.c
machine_kexec_32.c
machine_kexec_64.c	powerpc: Activate CONFIG_THREAD_INFO_IN_TASK	2019-02-23 22:31:40 +11:00
machine_kexec_file_64.c
machine_kexec.c
Makefile	powerpc: Enable kcov	2019-02-23 21:04:32 +11:00
mce_power.c
mce.c	powerpc/64s: Fix HV NMI vs HV interrupt recoverability test	2019-02-26 23:28:24 +11:00
misc_32.S	powerpc/32: Remove CURRENT_THREAD_INFO and rename TI_CPU	2019-02-23 22:31:40 +11:00
misc_64.S
misc.S
module_32.c
module_64.c
module.c
module.lds
msi.c
nvram_64.c	powerpc: Adopt nvram module for PPC64	2019-01-22 10:21:45 +01:00
of_platform.c
optprobes_head.S
optprobes.c
paca.c	powerpc: use memblock functions returning virtual address	2019-03-12 10:04:01 -07:00
pci_32.c	treewide: add checks for the return value of memblock_alloc*()	2019-03-12 10:04:02 -07:00
pci_64.c
pci_dn.c
pci_of_scan.c
pci-common.c	powerpc updates for 5.1	2019-03-07 12:56:26 -08:00
pci-hotplug.c
pmc.c
ppc32.h
ppc_save_regs.S
proc_powerpc.c
process.c	powerpc: regain entire stack space	2019-02-23 22:31:40 +11:00
prom_init_check.sh
prom_init.c
prom_parse.c
prom.c	powerpc: use memblock functions returning virtual address	2019-03-12 10:04:01 -07:00
ptrace32.c
ptrace.c	powerpc/ptrace: Simplify vr_get/set() to avoid GCC warning	2019-02-22 00:10:14 +11:00
reloc_32.S
reloc_64.S
rtas_flash.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
rtas_pci.c
rtas-proc.c
rtas-rtc.c
rtas.c	memblock: drop memblock_alloc_base()	2019-03-12 10:04:01 -07:00
rtasd.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
security.c	powerpc/security: Fix spectre_v2 reporting	2019-03-21 21:09:03 +11:00
setup_32.c	powerpc updates for 5.1	2019-03-07 12:56:26 -08:00
setup_64.c	treewide: add checks for the return value of memblock_alloc*()	2019-03-12 10:04:02 -07:00
setup-common.c	treewide: add checks for the return value of memblock_alloc*()	2019-03-12 10:04:02 -07:00
setup.h
signal_32.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
signal_64.c	powerpc/tm: Limit TM code inside PPC_TRANSACTIONAL_MEM	2019-01-11 23:45:00 +11:00
signal.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
signal.h
smp-tbsync.c
smp.c	powerpc: 'current_set' is now a table of task_struct pointers	2019-02-23 22:31:40 +11:00
stacktrace.c	powerpc: Remove export of save_stack_trace_tsk_reliable()	2019-03-02 14:43:05 +11:00
suspend.c
swsusp_32.S
swsusp_64.c
swsusp_asm64.S
swsusp_booke.S
swsusp.c
sys_ppc32.c
syscalls.c	powerpc/64: Make sys_switch_endian() traceable	2019-02-22 00:10:15 +11:00
sysfs.c
systbl_chk.sh
systbl.S	powerpc: remove nargs from __SYSCALL	2019-03-02 14:43:05 +11:00
tau_6xx.c
time.c	powerpc/kernel/time: Remove duplicate header	2019-01-30 23:42:31 +11:00
tm.S
traps.c	powerpc/64s: Include <asm/nmi.h> header file to fix a warning	2019-03-13 15:03:13 +11:00
udbg_16550.c
udbg.c	powerpc: use a CONSOLE_LOGLEVEL_DEBUG macro	2019-01-14 20:39:27 +11:00
uprobes.c
vdso.c	powerpc/vdso: don't clear PG_reserved	2019-03-05 21:07:18 -08:00
vecemu.c
vector.S
vmlinux.lds.S	powerpc/kconfig: define CONFIG_DATA_SHIFT and CONFIG_ETEXT_SHIFT	2019-02-23 21:04:32 +11:00
watchdog.c