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91ca180dbd
linux/arch/parisc/kernel
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Eric W. Biederman 91ca180dbd signal: Use force_sig_fault_to_task for the two calls that don't deliver to current 
In preparation for removing the task parameter from force_sig_fault
introduce force_sig_fault_to_task and use it for the two cases where
it matters.

On mips force_fcr31_sig calls force_sig_fault and is called on either
the current task, or a task that is suspended and is being switched to
by the scheduler.  This is safe because the task being switched to by
the scheduler is guaranteed to be suspended.  This ensures that
task->sighand is stable while the signal is delivered to it.

On parisc user_enable_single_step calls force_sig_fault and is in turn
called by ptrace_request.  The function ptrace_request always calls
user_enable_single_step on a child that is stopped for tracing.  The
child being traced and not reaped ensures that child->sighand is not
NULL, and that the child will not change child->sighand.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2019-05-29 09:31:43 -05:00
..
syscalls uapi: Wire up the mount API syscalls on non-x86 arches [ver #2] 2019-05-16 12:23:45 -04:00
.gitignore
alternative.c parisc: Split out alternative live patching code 2018-12-10 07:47:50 +01:00
asm-offsets.c parisc: Drop per_cpu uaccess related exception_data struct 2017-05-10 17:46:13 +02:00
audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cache.c parisc: Use __ro_after_init in cache.c 2019-05-10 21:00:44 +02:00
compat_audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drivers.c parisc: Use __ro_after_init in drivers.c 2019-05-10 21:00:44 +02:00
entry.S parisc: Use per-pagetable spinlock 2019-05-03 23:47:41 +02:00
firmware.c parisc: Use __ro_after_init in firmware.c 2019-05-10 21:00:44 +02:00
ftrace.c function_graph: Place ftrace_graph_entry_stub() prototype in include/linux/ftrace.h 2019-04-29 17:17:22 -04:00
hardware.c parisc: Move various functions and strings to init section 2018-03-27 18:52:21 +02:00
head.S parisc: Use __ro_after_init in head.S 2019-05-10 21:00:44 +02:00
hpmc.S parisc: Fix exported address of os_hpmc handler 2018-10-17 08:18:01 +02:00
inventory.c parisc: Use __ro_after_init in inventory.c 2019-05-10 21:00:44 +02:00
irq.c parisc: Improve initial IRQ to CPU assignment 2019-02-21 20:37:11 +01:00
jump_label.c parisc: Add static branch and JUMP_LABEL feature 2019-05-06 00:10:03 +02:00
kgdb.c parisc: add KGDB support 2019-05-03 23:47:38 +02:00
kprobes.c parisc: Implement kretprobes 2019-05-03 23:47:39 +02:00
Makefile parisc: Add static branch and JUMP_LABEL feature 2019-05-06 00:10:03 +02:00
module.c parisc: Split out alternative live patching code 2018-12-10 07:47:50 +01:00
pa7300lc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pacache.S parisc: Remove lock code to serialize TLB operations in pacache.S 2019-05-03 23:47:40 +02:00
parisc_ksyms.c parisc: Switch from DISCONTIGMEM to SPARSEMEM 2019-05-03 23:47:40 +02:00
patch.c parisc: remove unused flags parameter in __patch_text() 2019-05-03 23:47:39 +02:00
pci-dma.c dma-mapping: zero memory returned from dma_alloc_* 2018-12-20 08:13:52 +01:00
pci.c parisc: Use __ro_after_init in pci.c 2019-05-10 21:00:44 +02:00
pdc_chassis.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
pdc_cons.c treewide: Switch DEFINE_TIMER callbacks to struct timer_list * 2017-11-21 15:57:05 -08:00
pdt.c mm/memory_failure: Remove unused trapno from memory_failure 2018-01-23 12:17:42 -06:00
perf_asm.S
perf_images.h parisc: Use __ro_after_init in perf_images.h 2019-05-10 21:00:44 +02:00
perf.c parisc: Static initialization of spinlocks in perf and unwind code 2017-08-22 16:34:33 +02:00
process.c parisc: Use __ro_after_init in process.c 2019-05-10 21:00:45 +02:00
processor.c parisc: Use __ro_after_init in processor.c 2019-05-10 21:00:45 +02:00
ptrace.c signal: Use force_sig_fault_to_task for the two calls that don't deliver to current 2019-05-29 09:31:43 -05:00
real2.S parisc: Fix and improve kernel stack unwinding 2018-08-13 09:54:17 +02:00
setup.c parisc: Use per-pagetable spinlock 2019-05-03 23:47:41 +02:00
signal32.c signal: Unify and correct copy_siginfo_to_user32 2018-01-15 19:56:20 -06:00
signal32.h signal: Unify and correct copy_siginfo_to_user32 2018-01-15 19:56:20 -06:00
signal.c signal: Remove task parameter from force_sig 2019-05-27 09:36:28 -05:00
smp.c parisc: Count IPI function call interrupts 2019-02-21 20:37:11 +01:00
stacktrace.c parisc/stacktrace: Remove the pointless ULONG_MAX marker 2019-04-14 19:58:29 +02:00
sys_parisc32.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sys_parisc.c parisc: Consider stack randomization for mmap base only when necessary 2019-05-03 23:47:38 +02:00
syscall.S parisc: Drop LDCW barrier in CAS code when running UP 2019-05-10 21:00:24 +02:00
time.c parisc: Use __ro_after_init in time.c 2019-05-10 21:00:45 +02:00
topology.c parisc: Add CPU topology support 2017-11-17 15:27:22 +01:00
traps.c parisc: Implement kprobes 2019-05-03 23:47:39 +02:00
unaligned.c signal/parisc: Use force_sig_fault where appropriate 2018-04-25 10:44:06 -05:00
unwind.c parisc: Use __ro_after_init in unwind.c 2019-05-10 21:00:45 +02:00
vmlinux.lds.S parisc: Enable the ro_after_init feature 2019-05-10 21:00:44 +02:00