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linux/arch/mips/kernel
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James Hogan a7e89326b4 MIPS: Fix watchpoint restoration 
Commit f51246efee ("MIPS: Get rid of finish_arch_switch().") moved the
__restore_watch() call from finish_arch_switch() (i.e. after resume()
returns) to before the resume() call in switch_to(). This results in
watchpoints only being restored when a task is descheduled, preventing
the watchpoints from being effective most of the time, except due to
chance before the watchpoints are lazily removed.

Fix the call sequence from switch_to() through to
mips_install_watch_registers() to pass the task_struct pointer of the
next task, instead of using current. This allows the watchpoints for the
next (non-current) task to be restored without reintroducing
finish_arch_switch().

Fixes: f51246efee ("MIPS: Get rid of finish_arch_switch().")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: <stable@vger.kernel.org> # 4.3.x-
Patchwork: https://patchwork.linux-mips.org/patch/12726/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-09 12:00:02 +02:00
..
.gitignore
8250-platform.c
asm-offsets.c MIPS: Set trap_no field in thread_struct on exception. 2015-09-03 12:08:04 +02:00
binfmt_elfn32.c mips: Differentiate between 32 and 64 bit ELF header 2016-02-11 11:38:22 +01:00
binfmt_elfo32.c mips: Differentiate between 32 and 64 bit ELF header 2016-02-11 11:38:22 +01:00
bmips_5xxx_init.S MIPS: BMIPS: Make whitespacely correct. 2016-05-09 12:00:01 +02:00
bmips_vec.S MIPS: BMIPS: Add Whirlwind (BMIPS5200) initialization code 2016-05-09 12:00:01 +02:00
branch.c MIPS: Fix branch emulation for BLTC and BGEC instructions 2015-07-09 11:10:40 +02:00
cevt-bcm1480.c MIPS: cevt-bcm1480: Migrate to new 'set-state' interface 2015-09-03 12:07:51 +02:00
cevt-ds1287.c MIPS: cevt-ds1287: Migrate to new 'set-state' interface 2015-09-03 12:07:51 +02:00
cevt-gt641xx.c MIPS: cevt-gt641xx: Migrate to new 'set-state' interface 2015-09-03 12:07:51 +02:00
cevt-r4k.c MIPS: cevt-r4k: Migrate to new 'set-state' interface 2015-09-03 12:07:52 +02:00
cevt-sb1250.c MIPS: cevt-sb1250: Migrate to new 'set-state' interface 2015-09-03 12:07:52 +02:00
cevt-txx9.c MIPS: cevt-txx9: Migrate to new 'set-state' interface 2015-09-03 12:07:53 +02:00
cps-vec-ns16550.S MIPS: CPS: Early debug using an ns16550-compatible UART 2015-11-11 08:34:25 +01:00
cps-vec.S MIPS: CPS: drop .set mips64r2 directives 2015-12-22 12:16:32 +01:00
cpu-bugs64.c MIPS: Use EXCCODE_ constants with set_except_vector() 2016-01-24 03:28:21 +01:00
cpu-probe.c MIPS: Add IEEE Std 754 conformance mode selection 2016-01-20 00:39:20 +01:00
crash.c MIPS: Fix crash registers on non-crashing CPUs 2016-05-09 12:00:00 +02:00
crash_dump.c mips: Convert pr_warning to pr_warn 2014-11-24 07:44:51 +01:00
csrc-bcm1480.c MIPS: csrc-bcm1480: Implement read_sched_clock 2015-04-01 17:21:27 +02:00
csrc-ioasic.c MIPS: csrc-ioasic: Implement read_sched_clock 2015-04-01 17:21:28 +02:00
csrc-r4k.c MIPS: VDSO: Add implementations of gettimeofday() and clock_gettime() 2015-11-11 08:36:41 +01:00
csrc-sb1250.c MIPS: csrc-sb1250: Implement read_sched_clock 2015-04-01 17:21:33 +02:00
early_printk.c
early_printk_8250.c
elf.c MIPS: Add IEEE Std 754 conformance mode selection 2016-01-20 00:39:20 +01:00
entry.S MIPS: kernel: entry.S: Set correct ISA level for mips_ihb 2015-04-10 15:41:46 +02:00
ftrace.c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-08-07 08:47:00 -07:00
genex.S MIPS: Fix LLVM build issue. 2015-08-18 11:40:20 +02:00
gpio_txx9.c MIPS: txx9: switch to gpiochip_add_data() 2016-02-19 09:51:44 +01:00
head.S MIPS: Add support for vmlinux.bin appended dtb 2015-06-21 21:54:14 +02:00
i8253.c
idle.c Merge branch '4.3-fixes' into mips-for-linux-next 2015-11-12 11:36:03 +01:00
irq-gt641xx.c
irq-msc01.c MIPS: MSC: Prevent out-of-bounds writes to MIPS SC ioremap'd region 2014-06-26 10:48:23 +01:00
irq-rm7000.c
irq.c MIPS: IRQ/IP27: Move IRQ allocation API to platform code. 2015-06-21 21:54:31 +02:00
irq_txx9.c
jump_label.c jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP} 2015-08-03 11:34:12 +02:00
kgdb.c MIPS: Get rid of 'kgdb_early_setup' cruft. 2015-06-21 21:54:10 +02:00
kprobes.c mips: Replace __get_cpu_var uses 2014-08-26 13:45:51 -04:00
linux32.c
machine_kexec.c MIPS: kdump: Set correct value to kexec_indirection_page variable 2014-08-25 16:33:44 +02:00
Makefile MIPS: BMIPS: Add Whirlwind (BMIPS5200) initialization code 2016-05-09 12:00:01 +02:00
mcount.S MIPS: mcount: Adjust stack pointer for static trace in MIPS32 2014-09-26 11:41:17 +02:00
mips-cm.c MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
mips-cpc.c MIPS: CM, CPC: Ensure core-other GCRs reflect the correct core 2015-11-11 08:35:18 +01:00
mips-mt-fpaff.c MIPS: Fix sched_getaffinity with MT FPAFF enabled 2015-08-03 09:25:02 +02:00
mips-mt.c MIPS: MT: Remove SMTC support 2014-05-24 00:07:01 +02:00
mips-r2-to-r6-emul.c MIPS: traps: Correct the SIGTRAP debug ABI in do_watch' and do_trap_or_bp' 2016-04-03 12:32:09 +02:00
mips_ksyms.c MIPS: uaccess: Take EVA into account in [__]clear_user 2015-12-22 11:58:43 +01:00
mips_machine.c
module-rela.c MIPS: Bail on unsupported module relocs 2016-04-03 12:32:10 +02:00
module.c MIPS: Bail on unsupported module relocs 2016-04-03 12:32:10 +02:00
octeon_switch.S MIPS: Fix octeon FP context switch handling 2015-10-02 19:16:06 +02:00
perf_event.c
perf_event_mipsxx.c MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
pm-cps.c MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
pm.c MIPS: Fix watchpoint restoration 2016-05-09 12:00:02 +02:00
proc.c MIPS: Add support for XPA. 2015-03-19 17:39:49 +01:00
process.c MIPS: Don't unwind to user mode with EVA 2016-05-09 12:00:02 +02:00
prom.c MIPS: Fix build with CONFIG_OF=y for non OF-enabled targets 2015-08-03 09:25:00 +02:00
ptrace.c MIPS: ptrace: Drop cp0_tcstatus from regoffset_table[] 2016-01-24 02:24:24 +01:00
ptrace32.c MIPS: Remove asm/user.h 2014-08-02 00:06:37 +02:00
r4k_fpu.S MIPS: Avoid variant of .type unsupported by LLVM Assembler 2016-02-29 11:23:49 +01:00
r4k_switch.S MIPS: Tidy up FPU context switching 2015-09-03 12:08:05 +02:00
r2300_fpu.S MIPS: Avoid variant of .type unsupported by LLVM Assembler 2016-02-29 11:23:49 +01:00
r2300_switch.S MIPS: Fix R2300 FP context switch handling 2015-10-02 19:16:46 +02:00
r6000_fpu.S MIPS: Fix build with binutils 2.24.51+ 2014-11-07 15:07:36 +01:00
relocate_kernel.S MIPS: Replace add and sub instructions in relocate_kernel.S with addiu 2015-08-03 15:26:30 +02:00
reset.c MIPS: Provide fallback reboot/poweroff/halt implementations 2015-04-01 17:21:58 +02:00
rtlx-cmp.c MIPS: APRP: Fix an issue when device_create() fails. 2014-08-01 17:30:35 +02:00
rtlx-mt.c MIPS: APRP: Fix an issue when device_create() fails. 2014-08-01 17:30:35 +02:00
rtlx.c MIPS: rtlx: Remove KERN_DEBUG from pr_debug() arguments in rtlx.c 2014-11-24 07:44:04 +01:00
scall32-o32.S MIPS: Wire up preadv2 and pwrite2 syscalls. 2016-04-03 09:41:34 +02:00
scall64-64.S MIPS: Wire up preadv2 and pwrite2 syscalls. 2016-04-03 09:41:34 +02:00
scall64-n32.S MIPS: Wire up preadv2 and pwrite2 syscalls. 2016-04-03 09:41:34 +02:00
scall64-o32.S MIPS: Wire up preadv2 and pwrite2 syscalls. 2016-04-03 09:41:34 +02:00
segment.c MIPS: Declare mips_debugfs_dir in a header 2015-10-26 09:49:42 +01:00
setup.c Linux 4.5-rc6 2016-03-04 12:12:08 +01:00
signal-common.h MIPS: Save MSA extended context around signals 2015-09-03 12:07:59 +02:00
signal.c MIPS: Initial implementation of a VDSO 2015-11-11 08:36:36 +01:00
signal32.c MIPS: Initial implementation of a VDSO 2015-11-11 08:36:36 +01:00
signal_n32.c MIPS: Initial implementation of a VDSO 2015-11-11 08:36:36 +01:00
smp-bmips.c MIPS: BMIPS: Fill in current_cpu_data.core 2016-05-09 12:00:01 +02:00
smp-cmp.c MIPS: Make smp CMP, CPS and MT use the new generic IPI functions 2016-02-25 10:56:58 +01:00
smp-cps.c MIPS: Make smp CMP, CPS and MT use the new generic IPI functions 2016-02-25 10:56:58 +01:00
smp-gic.c MIPS: CM: make use of mips_cm_{lock,unlock}_other 2015-11-11 08:35:17 +01:00
smp-mt.c MIPS: Make smp CMP, CPS and MT use the new generic IPI functions 2016-02-25 10:56:58 +01:00
smp-up.c MIPS: SMP: Remove plat_smp_ops cpus_done method. 2014-05-27 11:06:42 +02:00
smp.c MIPS: Don't BUG_ON when no IPI domain is found 2016-05-09 12:00:00 +02:00
spinlock_test.c MIPS: Declare mips_debugfs_dir in a header 2015-10-26 09:49:42 +01:00
spram.c MIPS: Add cases for CPU_I6400 2015-08-26 15:23:03 +02:00
stacktrace.c MIPS: Add LATENCYTOP support 2015-11-11 08:36:46 +01:00
sync-r4k.c MIPS: sync-r4k: reduce skew while synchronization 2016-01-24 01:31:51 +01:00
syscall.c MIPS: kernel: syscall: Set the appropriate ISA level for MIPS R6 2015-02-17 15:37:29 +00:00
sysrq.c MIPS: Refactor dumping of TLB registers for r3k/r4k 2015-09-03 12:07:45 +02:00
time.c MIPS: MT: Remove SMTC support 2014-05-24 00:07:01 +02:00
topology.c
traps.c MIPS: Avoid using unwind_stack() with usermode 2016-05-09 12:00:02 +02:00
unaligned.c MIPS: Fix MSA ld unaligned failure cases 2016-03-29 14:18:18 +02:00
uprobes.c MIPS: Add uprobes support. 2015-09-03 12:08:05 +02:00
vdso.c MIPS: VDSO: Add implementations of gettimeofday() and clock_gettime() 2015-11-11 08:36:41 +01:00
vmlinux.lds.S arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 2016-03-25 16:37:42 -07:00
vpe-cmp.c
vpe-mt.c MIPS: MT: Remove SMTC support 2014-05-24 00:07:01 +02:00
vpe.c module: use a structure to encapsulate layout. 2015-12-04 22:46:25 +01:00
watch.c MIPS: Fix watchpoint restoration 2016-05-09 12:00:02 +02:00