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a989ff898f
android_kernel_xiaomi_sm8350/arch/mips/kernel
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Al Viro a989ff898f MIPS: Don't stomp on caller's ->regs[2] in copy_thread() 
We never needed that (->regs[2] is overwritten on return from syscall paths
with return value of syscall, so storing it there early made no sense) and
with new restart logics since d27240bf7e61d2656de18e158ec910a902030847 it
has become really bad - we lose the original syscall number before the
place where we decide that we might need a syscall restart.

Note that for child we do need the assignment to regs[2] - it won't go
through the normal return from syscall path.

[Ralf: Issue found and reported by Lluís; initial investigations by me;
bug finally found and patch by Al; testing by me and Lluís.]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Lluís Batlle i Rossell <viriketo@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-12-16 18:10:52 +00:00
..
cpufreq MIPS: Use set_cpus_allowed_ptr 2010-05-21 21:31:14 +01:00
.gitignore
8250-platform.c
asm-offsets.c MIPS: Remove unused task_struct.trap_no field. 2010-08-05 13:26:30 +01:00
binfmt_elfn32.c
binfmt_elfo32.c
branch.c MIPS: Sanitize restart logics 2010-10-18 16:59:02 +01:00
cevt-bcm1480.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
cevt-ds1287.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
cevt-gt641xx.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
cevt-r4k.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
cevt-sb1250.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
cevt-smtc.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
cevt-txx9.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
cpu-bugs64.c MIPS: uasm: Add option to export uasm API. 2010-08-05 13:26:21 +01:00
cpu-probe.c MIPS: Make TASK_SIZE reflect proper size for both 32 and 64 bit processes. 2010-10-29 19:08:53 +01:00
csrc-bcm1480.c
csrc-ioasic.c
csrc-powertv.c MIPS: PowerTV: Base files for Cisco PowerTV platform 2009-12-17 01:57:17 +00:00
csrc-r4k.c
csrc-sb1250.c
early_printk.c
entry.S
ftrace.c MIPS: Tracing: Cleanup of address space checking 2010-07-05 17:17:30 +01:00
genex.S
gpio_txx9.c
head.S MIPS: Avoid potential hazard on Context register 2009-11-02 12:00:07 +01:00
i8253.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
i8259.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
irq_cpu.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
irq_txx9.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
irq-gic.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
irq-gt641xx.c MIPS: GT641xx: Convert IRQ controller lock to raw spinlock. 2010-02-27 12:53:31 +01:00
irq-msc01.c
irq-rm7000.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
irq-rm9000.c MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
irq.c MIPS: IRQ: Add stackoverflow detection 2010-10-29 19:08:27 +01:00
kgdb.c MIPS: Fix a typo. 2010-10-04 18:33:54 +01:00
kprobes.c MIPS: kprobe: Add support. 2010-08-05 13:26:29 +01:00
kspd.c MIPS: kspd: Adjust confusing if indentation 2010-10-04 18:33:54 +01:00
linux32.c MIPS: Hookup fanotify_init, fanotify_mark, and prlimit64 syscalls. 2010-10-04 18:33:59 +01:00
machine_kexec.c
Makefile MIPS: add support for hardware performance events (skeleton) 2010-10-29 19:08:48 +01:00
mcount.S MIPS: tracing: Fix the indentation of mcount.S 2010-08-05 13:26:06 +01:00
mips_ksyms.c MIPS: Tracing: Add static function tracer support for MIPS 2009-12-17 01:57:21 +00:00
mips-mt-fpaff.c MIPS: MT: Fix build error iFPU affinity code 2010-10-25 08:12:27 -07:00
mips-mt.c MIPS: Remove useless zero initializations. 2009-09-17 20:07:51 +02:00
module.c
octeon_switch.S MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
perf_event_mipsxx.c MIPS: Add support for hardware performance events (mipsxx) 2010-10-29 19:08:49 +01:00
perf_event.c MIPS: Add support for hardware performance events (mipsxx) 2010-10-29 19:08:49 +01:00
proc.c
process.c MIPS: Don't stomp on caller's ->regs[2] in copy_thread() 2010-12-16 18:10:52 +00:00
prom.c of/mips: Add device tree support to MIPS 2010-10-21 11:10:10 -06:00
ptrace32.c
ptrace.c ptrace: cleanup arch_ptrace() on MIPS 2010-10-27 18:03:11 -07:00
r4k_fpu.S
r4k_switch.S
r2300_fpu.S
r2300_switch.S
r6000_fpu.S
relocate_kernel.S
reset.c
rtlx.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
scall32-o32.S Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus 2010-10-18 13:10:36 -07:00
scall64-64.S Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus 2010-10-18 13:10:36 -07:00
scall64-n32.S Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus 2010-10-20 13:18:21 -07:00
scall64-o32.S Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus 2010-10-20 13:18:21 -07:00
setup.c MIPS: Add a platform hook for swiotlb setup. 2010-10-29 19:08:32 +01:00
signal32.c MIPS: Move signal trampolines off of the stack. 2010-04-12 17:26:15 +01:00
signal_n32.c MIPS: do_sigaltstack() expects userland pointers 2010-10-18 16:59:03 +01:00
signal-common.h MIPS: Move signal trampolines off of the stack. 2010-04-12 17:26:15 +01:00
signal.c MIPS: do_sigaltstack() expects userland pointers 2010-10-18 16:59:03 +01:00
smp-cmp.c cpumask: Use accessors for cpu_*_mask: mips 2009-09-24 09:34:48 +09:30
smp-mt.c cpumask: Use accessors for cpu_*_mask: mips 2009-09-24 09:34:48 +09:30
smp-up.c cpumask: arch_send_call_function_ipi_mask: mips 2009-09-24 09:34:45 +09:30
smp.c MIPS: Export __cpu_number_map and __cpu_logical_map. 2010-08-05 13:26:21 +01:00
smtc-asm.S
smtc-proc.c
smtc.c Fix IRQ flag handling naming 2010-10-07 14:08:55 +01:00
spinlock_test.c MIPS: Crazy spinlock speed test. 2010-02-27 12:53:42 +01:00
spram.c MIPS: SPRAM: Clean up support code a little 2009-11-02 12:00:05 +01:00
stacktrace.c
sync-r4k.c
syscall.c Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
time.c mips: Use generic mult/shift factor calculation for clocks 2009-11-13 20:46:24 +01:00
topology.c
traps.c MIPS: Allow UserLocal on MIPS_R1 processors 2010-10-29 19:08:53 +01:00
unaligned.c MIPS: add support for software performance events 2010-10-29 19:08:48 +01:00
vdso.c MIPS: Make init_vdso a subsys_initcall. 2010-07-26 19:08:16 +01:00
vmlinux.lds.S MIPS: Tracing: Add IRQENTRY_EXIT section for MIPS 2009-12-17 01:57:24 +00:00
vpe.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
watch.c