q3k
/
linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
linux/arch/ia64/kernel
History
Oleg Nesterov ffdf91856c ia64: ptrace_attach_sync_user_rbs: avoid "task->signal != NULL" checks 
Preparation to make task->signal immutable, no functional changes.

It doesn't matter which pointer we check under tasklist to ensure the task
was not released, ->signal or ->sighand.  But we are going to make
->signal refcountable, change the code to use ->sighand.

Note: this code doesn't need this check and tasklist_lock at all, it
should be converted to use lock_task_sighand().  And, the code under
SIGNAL_STOP_STOPPED check looks wrong.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2010-05-27 09:12:46 -07:00
..
cpufreq [IA64] Use set_cpus_allowed_ptr 2010-05-18 14:45:53 -07:00
.gitignore [IA64] Cleanup generated file not ignored by .gitignore 2008-08-04 11:06:16 -07:00
Makefile elf coredump: replace ELF_CORE_EXTRA_* macros by functions 2010-03-06 11:26:45 -08:00
Makefile.gate kbuild: rename ld-option to cc-ldoption 2009-09-20 12:27:42 +02:00
acpi-ext.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
acpi.c x86, acpi/irq: Introduce apci_isa_irq_to_gsi 2010-05-04 13:34:23 -07:00
asm-offsets.c ia64/pv_ops/xen: paravirtualize read/write ar.itc and ar.itm 2009-03-26 10:50:32 -07:00
audit.c [IA64] Remove COMPAT_IA32 support 2010-02-08 10:42:17 -08:00
brl_emu.c
…
crash.c sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
crash_dump.c kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE 2008-10-20 08:52:39 -07:00
cyclone.c clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
dma-mapping.c [IA64] Fix warning in dma-mapping.c 2009-09-02 09:12:21 -07:00
efi.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
efi_stub.S
…
elfcore.c elf coredump: add extended numbering support 2010-03-06 11:26:46 -08:00
entry.S [IA64] Remove COMPAT_IA32 support 2010-02-08 10:42:17 -08:00
entry.h
…
err_inject.c sysdev: Pass the attribute to the low level sysdev show/store function 2008-07-21 21:55:02 -07:00
esi.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
esi_stub.S
…
fsys.S ia64/pv_ops: paravirtualize mov = ar.itc. 2009-03-26 10:50:22 -07:00
fsyscall_gtod_data.h
…
ftrace.c ftrace, ia64: IA64 dynamic ftrace support 2009-01-14 12:11:31 +01:00
gate-data.S
…
gate.S ia64/pv_ops: paravirtualize gate.S. 2009-03-26 11:01:46 -07:00
gate.lds.S ia64/pv_ops: gate page paravirtualization. 2009-03-26 10:51:02 -07:00
head.S percpu: make percpu symbols in ia64 unique 2009-10-29 22:34:14 +09:00
ia64_ksyms.c percpu: remove per_cpu__ prefix. 2009-10-29 22:34:15 +09:00
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
iosapic.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
irq.c genirq: Convert irq_desc.lock to raw_spinlock 2009-12-14 23:55:33 +01:00
irq_ia64.c [IA64] use __ratelimit 2010-05-18 14:45:54 -07:00
irq_lsapic.c [IA64] remove obsolete hw_interrupt_type 2009-06-15 14:35:10 -07:00
ivt.S [IA64] Remove COMPAT_IA32 support 2010-02-08 10:42:17 -08:00
jprobes.S [IA64] Move include/asm-ia64 to arch/ia64/include/asm 2008-08-01 10:21:21 -07:00
kprobes.c kprobes: Disable booster when CONFIG_PREEMPT=y 2010-02-04 09:36:18 +01:00
machine_kexec.c [IA64] kexec: Unregister MCA handler before kexec 2009-09-14 16:18:17 -07:00
machvec.c x86, ia64: convert to use generic dma_map_ops struct 2009-01-06 14:06:57 +01:00
mca.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mca_asm.S percpu: make percpu symbols in ia64 unique 2009-10-29 22:34:14 +09:00
mca_drv.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mca_drv.h
…
mca_drv_asm.S
…
minstate.h [IA64] pvops: paravirtualize minstate.h. 2008-05-27 15:02:17 -07:00
module.c [IA64] Convert ia64 to use int-ll64.h 2009-06-17 09:33:49 -07:00
msi_ia64.c [IA64] msi_ia64.c dmar_msi_type should be static 2009-06-15 14:35:54 -07:00
nr-irqs.c ia64/pv_ops/xen: define the nubmer of irqs which xen needs. 2008-10-17 10:06:59 -07:00
numa.c
…
pal.S
…
palinfo.c [IA64] Convert ia64 to use int-ll64.h 2009-06-17 09:33:49 -07:00
paravirt.c ia64: remove some warnings. 2009-03-27 11:11:04 -07:00
paravirt_inst.h ia64/pv_ops: paravirtualized instruction checker. 2008-10-17 10:12:54 -07:00
paravirt_patch.c ia64/pv_op/binarypatch: add helper functions to support binary patching for paravirt_ops. 2009-03-26 11:02:31 -07:00
paravirt_patchlist.c [IA64] Fix build error in paravirt_patchlist.c 2009-06-17 09:04:40 -07:00
paravirt_patchlist.h ia64/pv_ops: gate page paravirtualization. 2009-03-26 10:51:02 -07:00
paravirtentry.S ia64/pv_ops: implement binary patching optimization for native. 2009-03-26 11:02:42 -07:00
patch.c ia64: remove some warnings. 2009-03-27 11:11:04 -07:00
pci-dma.c Bug Fix arch/ia64/kernel/pci-dma.c: fix recursive dma_supported() call in iommu_dma_supported() 2009-08-11 14:52:10 -07:00
pci-swiotlb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
perfmon.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
perfmon_default_smpl.c
…
perfmon_generic.h
…
perfmon_itanium.h
…
perfmon_mckinley.h
…
perfmon_montecito.h
…
process.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ptrace.c ia64: ptrace_attach_sync_user_rbs: avoid "task->signal != NULL" checks 2010-05-27 09:12:46 -07:00
relocate_kernel.S percpu: make percpu symbols in ia64 unique 2009-10-29 22:34:14 +09:00
sal.c [IA64] Update check_sal_cache_flush to use platform_send_ipi() 2008-06-11 16:40:33 -07:00
salinfo.c [IA64] Use set_cpus_allowed_ptr 2010-05-18 14:45:53 -07:00
setup.c [IA64] Remove COMPAT_IA32 support 2010-02-08 10:42:17 -08:00
sigframe.h
…
signal.c [IA64] Remove COMPAT_IA32 support 2010-02-08 10:42:17 -08:00
smp.c ia64: convert last user of smp_call_function_mask 2009-09-24 09:34:40 +09:30
smpboot.c [IA64] Remove COMPAT_IA32 support 2010-02-08 10:42:17 -08:00
sys_ia64.c Get rid of open-coding in ia64_brk() 2009-12-11 06:44:58 -05:00
time.c ia64: Convert ia64 to use read/update_persistent_clock 2010-03-13 01:14:11 +01:00
topology.c [IA64] Use set_cpus_allowed_ptr 2010-05-18 14:45:53 -07:00
traps.c [IA64] Remove COMPAT_IA32 support 2010-02-08 10:42:17 -08:00
unaligned.c [IA64] use __ratelimit 2010-05-18 14:45:54 -07:00
uncached.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
unwind.c [IA64] Do not go beyond ARRAY_SIZE of unw.hash 2009-02-25 11:48:04 -08:00
unwind_decoder.c
…
unwind_i.h
…
vmlinux.lds.S ia64: allocate percpu area for cpu0 like percpu areas for other cpus 2009-10-02 13:28:56 +09:00