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Mathieu Desnoyers f144e7c727 [POWERPC] Fix atomicity of TIF update in flush_thread() ... Fix atomicity of TIF update in flush_thread() for powerpc Fixes it correctly with *_ti_thread_flag. Race : parent process executing : sys_ptrace() (lock_kernel()) (ptrace_get_task_struct(pid)) arch_ptrace() ptrace_detach() ptrace_disable(child); clear_singlestep(child); clear_tsk_thread_flag(child, TIF_SINGLESTEP); (which clears the TIF_SINGLESTEP flag atomically from a different process) (put_task_struct(child)) (unlock_kernel()) And at the same time, in the child process : sys_execve() do_execve() search_binary_handler() load_elf_binary() flush_old_exec() flush_thread() doing a non-atomic thread flag update Applies on 2.6.20. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>		18 years ago
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vdso32	[POWERPC] Support feature fixups in vdso's	19 years ago
vdso64	[POWERPC] Cell timebase bug workaround	19 years ago
Makefile	[POWERPC] pasemi: Idle loops	18 years ago
align.c	[PATCH] powerpc: Implement support for setting little-endian mode via prctl	19 years ago
asm-offsets.c	[POWERPC] Fix manual assembly WARN_ON() in enter_rtas().	18 years ago
audit.c	[PATCH] audit: AUDIT_PERM support	19 years ago
binfmt_elf32.c	Remove obsolete #include <linux/config.h>	19 years ago
btext.c	[POWERPC] Use udbg_early_init() on ppc32	18 years ago
compat_audit.c	[PATCH] audit: AUDIT_PERM support	19 years ago
cpu_setup_6xx.S	Remove obsolete #include <linux/config.h>	19 years ago
cpu_setup_pa6t.S	[POWERPC] pasemi: Idle loops	18 years ago
cpu_setup_ppc970.S	[POWERPC] powerpc: Enable DEEPNAP power savings mode on 970MP	19 years ago
cputable.c	[POWERPC] No DEEPNAP on 970MP 1.0	18 years ago
crash.c	[PATCH] Kexec / Kdump: Unify elf note code	18 years ago
crash_dump.c	[POWERPC] Make doc comments extractable	19 years ago
dma_64.c	[POWERPC] Make direct DMA use node local allocations	18 years ago
entry_32.S	Remove obsolete #include <linux/config.h>	19 years ago
entry_64.S	[POWERPC] Clear RI bit in MSR before restoring r13 when returning to userspace	18 years ago
firmware.c	Remove obsolete #include <linux/config.h>	19 years ago
fpu.S	[POWERPC] Restore copyright notice in arch/powerpc/kernel/fpu.S	19 years ago
head_4xx.S	Remove obsolete #include <linux/config.h>	19 years ago
head_8xx.S	Remove obsolete #include <linux/config.h>	19 years ago
head_32.S	[POWERPC] Remove the broken Gemini support	18 years ago
head_44x.S	[POWERPC] Remove ibm4{xx,4x}.h from arch/powerpc	18 years ago
head_64.S	[POWERPC] Fix performance monitor exception	18 years ago
head_booke.h	[PATCH] powerpc: Fix Kernel FP unavail exception for BookE	19 years ago
head_fsl_booke.S	[POWERPC] 85xx: Drop use of SYNC macro in head_fsl_booke.S	18 years ago
ibmebus.c	[POWERPC] Replace kmalloc+memset with kzalloc	18 years ago
idle.c	[PATCH] sysctl: remove insert_at_head from register_sysctl	18 years ago
idle_6xx.S	Remove obsolete #include <linux/config.h>	19 years ago
idle_power4.S	[POWERPC] Lazy interrupt disabling for 64-bit machines	19 years ago
init_task.c	[PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c	19 years ago
io.c	[POWERPC] Merge 32 and 64 bits asm-powerpc/io.h	18 years ago
iomap.c	[POWERPC] Remove fastcall function attribute	18 years ago
iommu.c	[POWERPC] Refactor 64 bits DMA operations	18 years ago
irq.c	[PATCH] msi: sanely support hardware level msi disabling	18 years ago
kprobes.c	[POWERPC] Added kprobes support to ppc32	18 years ago
l2cr_6xx.S	Remove obsolete #include <linux/config.h>	19 years ago
legacy_serial.c	[POWERPC] Open Firmware serial port driver	18 years ago
lparcfg.c	[PATCH] mark struct file_operations const 2	18 years ago
lparmap.c	[PATCH] powerpc: Fix iSeries bug in VMALLOCBASE/VMALLOC_START consolidation	19 years ago
machine_kexec.c	[POWERPC] Move some kexec logic into machine_kexec.c	19 years ago
machine_kexec_32.c	Storage class should be first	19 years ago
machine_kexec_64.c	Merge branch 'merge'	19 years ago
misc.S	[POWERPC] convert string i/o operations to C	19 years ago
misc_32.S	[POWERPC] Consolidate feature fixup code	19 years ago
misc_64.S	[POWERPC] pasemi: UART udbg support	18 years ago
module_32.c	[POWERPC] Add support for R_PPC_ADDR16_HI relocations	18 years ago
module_64.c	[POWERPC] Generic BUG for powerpc	18 years ago
nvram_64.c	[PATCH] mark struct file_operations const 2	18 years ago
of_device.c	[POWERPC] of_device_register: propagate device_create_file return code	18 years ago
of_platform.c	[POWERPC] powerpc: add scanning of ebc bus to of_platform	18 years ago
paca.c	[POWERPC] Implement SLB shadow buffer	19 years ago
pci_32.c	[POWERPC] Do not write virq back to PCI config space	18 years ago
pci_64.c	Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc	18 years ago
pci_dn.c	[POWERPC] Constify & voidify get_property()	19 years ago
pmc.c	[POWERPC] PA6T PMC support	18 years ago
ppc32.h	powerpc: move include/asm-ppc64/ppc32.h to arch/powerpc/kernel	20 years ago
ppc_ksyms.c	[POWERPC] Compile fixes for arch/powerpc dcr code	18 years ago
proc_ppc64.c	[PATCH] mark struct file_operations const 2	18 years ago
process.c	[POWERPC] Fix atomicity of TIF update in flush_thread()	18 years ago
prom.c	[POWERPC] Export of_find_property	18 years ago
prom_init.c	[POWERPC] Add device tree fixups for the EFIKA	18 years ago
prom_parse.c	[POWERPC] Fix warning in prom_parse.c of_irq_map_oldworld()	18 years ago
ptrace-common.h	Remove obsolete #include <linux/config.h>	19 years ago
ptrace.c	[POWERPC] Mask 32-bit system call arguments to 32 bits on PPC64 in audit code	18 years ago
ptrace32.c	Remove obsolete #include <linux/config.h>	19 years ago
rtas-proc.c	[PATCH] mark struct file_operations const 2	18 years ago
rtas-rtc.c	[PATCH] powerpc: reorg RTAS delay code	19 years ago
rtas.c	Storage class should be before const qualifier	18 years ago
rtas_flash.c	[PATCH] mark struct file_operations const 2	18 years ago
rtas_pci.c	[POWERPC] Merge 32 and 64 bits asm-powerpc/io.h	18 years ago
semaphore.c	powerpc: Merge enough to start building in arch/powerpc.	20 years ago
setup-common.c	[POWERPC] Fix xmon=off and cleanup xmon initialisation	19 years ago
setup.h	[PATCH] powerpc: Make early xmon logic immune to location of early parsing	19 years ago
setup_32.c	[POWERPC] Use udbg_early_init() on ppc32	18 years ago
setup_64.c	[POWERPC] Distinguish POWER6 partition modes and tell userspace	18 years ago
signal_32.c	[POWERPC] Fix register save area alignment for swapcontext syscall	18 years ago
signal_64.c	Remove obsolete #include <linux/config.h>	19 years ago
smp-tbsync.c	[POWERPC] Replace kmalloc+memset with kzalloc	18 years ago
smp.c	[POWERPC] Move MPIC smp routines into mpic.c	18 years ago
swsusp_32.S	[PATCH] Change the name of pagedir_nosave	19 years ago
sys_ppc32.c	[PATCH] Common compat_sys_sysinfo	18 years ago
syscalls.c	[PATCH] namespaces: utsname: switch to using uts namespaces	19 years ago
sysfs.c	[POWERPC] PA6T PMC support	18 years ago
systbl.S	Remove obsolete #include <linux/config.h>	19 years ago
tau_6xx.c	Remove obsolete #include <linux/config.h>	19 years ago
time.c	[POWERPC] iSeries: fix time.c for combined build	18 years ago
traps.c	backlight: Separate backlight properties from backlight ops pointers	18 years ago
udbg.c	[POWERPC] Use udbg_early_init() on ppc32	18 years ago
udbg_16550.c	[PATCH] constant should be long	18 years ago
vdso.c	[POWERPC] Fix vDSO page count calculation	18 years ago
vecemu.c	[PATCH] powerpc: Move arch/ppc*/kernel/vecemu.c to arch/powerpc	20 years ago
vector.S	Remove obsolete #include <linux/config.h>	19 years ago
vio.c	[POWERPC] arch/powerpc/kernel/vio.c of_node_put cleanup	18 years ago
vmlinux.lds.S	[PATCH] disable init/initramfs.c: architectures	18 years ago