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Yanjiang Jin fa0c879ffc MIPS: oprofile: Fix a preemption issue 
Use boot_cpu_type() instead of current_cpu_type() in oprofile_arch_init()
to avoid the below warning, cpu_type is normally consistent in a MIPS SMP
system.  There are a few exceptions such as SGI servers where it is
possible to mix R10000, R12000, R14000 and R16000 within certain
constraints.  Let's not worry about those now.

BUG: using smp_processor_id() in preemptible [00000000] code: insmod/952
caller is oprofile_arch_init+0x30/0x194 [oprofile]
CPU: 5 PID: 952 Comm: insmod Not tainted 4.1.13-WR8.0.0.0_standard #1
Stack : ffffffff80c10000 0000000000000001 8000000025bf0790 ffffffff80e10000
	  ffffffff80e50000 ffffffff80254e2c ffffffff80b64428 ffffffff80e10790
	  0000000000000000 ffffffff801caeb8 0000000000000045 0000000000000005
	  ffffffff80c10000 ffffffff801cb798 0000000000000000 ffffffff80e30000
	  0000000000000000 ffffffff801ff1c0 ffffffff80e2d2f8 000000000000000b
	  ffffffff801cbba0 ffffffff80e107b0 ffffffff80a77828 0000000000000005
	  00000000000003b8 ffffffff80e2d2f8 800000040ad39960 ffffffff801f9950
	  0000000000000124 80000004093b7990 80000004093b7ab8 ffffffff80925108
	  ffffffff80b69a07 ffffffff80a6f0d0 8000000407240e00 ffffffff801cc934
	  000000000000005d ffffffff80159080 0000000000000005 00000000000003b8
	  ...
Call Trace:
[<ffffffff80159080>] show_stack+0xe8/0x108
[<ffffffff80925108>] dump_stack+0x8c/0xd8
[<ffffffff80606570>] check_preemption_disabled+0x110/0x118
[<ffffffffc0086104>] oprofile_arch_init+0x30/0x194 [oprofile]
[<ffffffffc008602c>] oprofile_init+0x2c/0xc0 [oprofile]
[<ffffffff80100550>] do_one_initcall+0xa0/0x1c0
[<ffffffff80921e04>] do_init_module+0x80/0x1d8
[<ffffffff801fd0d4>] load_module+0x1b74/0x2278
[<ffffffff801fdab4>] SyS_finit_module+0xcc/0xf0
[<ffffffff80165884>] handle_sysn32+0x44/0x70

[ralf@linux-mips.org: Correct commit message.]

Signed-off-by: Yanjiang Jin <yanjiang.jin@windriver.com>
Cc: rric@kernel.org
Cc: jinyanjiang@gmail.com
Cc: linux-mips@linux-mips.org
Cc: oprofile-list@lists.sf.net
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11769/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-09 12:00:03 +02:00
..
alpha alpha/extable: use generic search and sort routines 2016-03-22 15:36:02 -07:00
arc ARC: support HIGHMEM even without PAE40 2016-05-05 16:35:46 +05:30
arm Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm 2016-05-07 08:27:35 -07:00
arm64 Here are a couple last-minute fixes for ARM SoCs. Most of them 2016-05-05 15:31:35 -07:00
avr32 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
blackfin arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 2016-03-25 16:37:42 -07:00
c6x arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 2016-03-25 16:37:42 -07:00
cris Merge branch 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-20 19:08:56 -07:00
frv asm-generic changes for 4.6 2016-03-24 23:13:48 -07:00
h8300 h8300: switch EARLYCON 2016-03-25 01:45:19 +09:00
hexagon Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
ia64 [IA64] Enable preadv2 and pwritev2 syscalls for ia64 2016-03-25 14:37:32 -07:00
m32r Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
m68k Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2016-04-13 08:58:32 -07:00
metag arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 2016-03-25 16:37:42 -07:00
microblaze arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 2016-03-25 16:37:42 -07:00
mips MIPS: oprofile: Fix a preemption issue 2016-05-09 12:00:03 +02:00
mn10300 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
nios2 nios2: memset: use the right constraint modifier for the %4 output operand 2016-04-27 16:35:55 +08:00
openrisc arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 2016-03-25 16:37:42 -07:00
parisc parisc: fix a bug when syscall number of tracee is __NR_Linux_syscalls 2016-05-06 15:09:07 +02:00
powerpc powerpc fixes for 4.6 #4 2016-05-06 11:05:07 -07:00
s390 s390/mm: fix asce_bits handling with dynamic pagetable levels 2016-04-21 09:50:09 +02:00
score Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
sh sh: fix function signature of cpu_coregroup_mask to match pointer type 2016-03-30 00:47:49 +00:00
sparc sparc64: Fix bootup regressions on some Kconfig combinations. 2016-04-27 17:27:37 -04:00
tile Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2016-03-28 15:04:55 -05:00
um fs/coredump: prevent fsuid=0 dumps into user-controlled directories 2016-03-22 15:36:02 -07:00
unicore32 Merge branch 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-20 19:08:56 -07:00
x86 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-05-06 12:59:27 -07:00
xtensa Xtensa improvements for 4.6: 2016-03-20 12:22:07 -07:00
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