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fa0c879ffc
linux/arch/mips
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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
..
alchemy MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
ar7 MIPS: ar7: use gpiochip data pointer 2016-02-19 09:51:43 +01:00
ath25 genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
ath79 MIPS: ath79: Fix the ar913x reference clock rate 2016-04-03 12:32:10 +02:00
bcm47xx FIRMWARE: Broadcom: Fix grammar of warning messages in bcm47xx_sprom.c. 2016-04-03 12:32:09 +02:00
bcm63xx Merge branch 'ib-mfd-regulator-gpio-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into devel 2016-03-09 17:40:37 +07:00
bmips irqchips/bmips: Add bcm6345-l1 interrupt controller 2016-02-08 15:03:42 +01:00
boot MIPS: BMIPS: Remove maxcpus from BCM97435SVMB DTS 2016-05-09 12:00:01 +02:00
cavium-octeon MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
cobalt MIPS: Cobalt Don't use module_init in non-modular MTD registration. 2015-06-21 22:14:30 +02:00
configs MIPS: ci20: Enable NAND and UBIFS support in defconfig. 2016-04-03 12:32:09 +02:00
dec MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
emma
fw MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
include MIPS: Fix watchpoint restoration 2016-05-09 12:00:02 +02:00
jazz MIPS: Jazz: Migrate to new 'set-state' interface 2015-09-03 12:07:50 +02:00
jz4740 MIPS: jz4740: Fix surviving instance of irq_to_gpio() 2016-02-29 11:23:49 +01:00
kernel MIPS: Reserve nosave data for hibernation 2016-05-09 12:00:03 +02:00
kvm MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
lantiq MIPS: Make MIPS_CMDLINE_DTB default 2015-11-11 08:38:37 +01:00
lasat [mips] switch pvc_proc_cleanup() to remove_proc_subtree() 2015-12-23 10:41:38 -05:00
lib MIPS: Cleanup the unused __arch_local_irq_restore() function 2016-01-22 01:58:49 +01:00
loongson32 MIPS: loongsoon32: Migrate to new 'set-state' interface 2015-09-03 12:07:53 +02:00
loongson64 MIPS: Loongson-3: Fix build error after ld-version.sh modification 2016-05-09 12:00:03 +02:00
math-emu MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
mm MIPS: I6400: Icache fills from dcache 2016-05-09 12:00:03 +02:00
mti-malta MIPS: Fix early CM probing 2016-02-09 17:18:31 +01:00
mti-sead3 LED/MIPS: Move SEAD3 LED driver to where it belongs. 2015-11-03 08:59:20 +01:00
net net: filter: make JITs zero A for SKF_AD_ALU_XOR_X 2016-01-06 00:43:52 -05:00
netlogic MIPS: Make MIPS_CMDLINE_DTB default 2015-11-11 08:38:37 +01:00
oprofile MIPS: oprofile: Fix a preemption issue 2016-05-09 12:00:03 +02:00
paravirt MIPS: SMP: Don't increment irq_count multiple times for call function IPIs 2015-08-03 09:25:12 +02:00
pci PCI changes for the v4.6 merge window: 2016-03-16 14:45:55 -07:00
pic32 clk: Get rid of HAVE_MACH_CLKDEV 2016-02-25 14:41:20 -08:00
pistachio Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-11-15 09:10:53 -08:00
pmcs-msp71xx serial: Fix ASYNC_* => UPF_* flags misuse 2016-01-28 14:17:42 -08:00
pnx833x mips: nand: make use of mtd_to_nand() where appropriate 2015-12-08 13:03:07 -08:00
power
ralink MIPS: pci: Add MT7620a PCIE driver 2016-01-20 00:39:20 +01:00
rb532 MIPS: rb532: use gpiochip data pointer 2016-02-19 09:51:44 +01:00
sgi-ip22
sgi-ip27 MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
sgi-ip32 MIPS: IP32: Fix build errors in reset code in DS1685 platform hook. 2015-05-13 00:01:41 +02:00
sibyte MIPS: Sibyte: Fix Kconfig dependencies of SIBYTE_BUS_WATCHER 2016-05-09 12:00:03 +02:00
sni MIPS: Fix build error due to unused variables. 2015-12-22 15:21:18 +01:00
txx9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
vdso Fix ld-version.sh to handle large 3rd version part 2016-01-04 10:22:52 +01:00
vr41xx MIPS/IRQCHIP: Move irq_chip from arch/mips to drivers/irqchip. 2015-06-21 21:52:50 +02:00
xilfpga Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-11-15 09:10:53 -08:00
Kbuild MIPS: Initial implementation of a VDSO 2015-11-11 08:36:36 +01:00
Kbuild.platforms MIPS: Add support for PIC32MZDA platform 2016-01-24 02:53:28 +01:00
Kconfig MIPS: Enable ptrace hw watchpoints on MIPS R6 2016-05-09 12:00:02 +02:00
Kconfig.debug MIPS: CPS: Early debug using an ns16550-compatible UART 2015-11-11 08:34:25 +01:00
Makefile MIPS: Loongson-3: Improve -march option and move it to Platform 2016-01-22 01:59:18 +01:00