Henrik Austad 39e8202bb3 tile: ns2cycles should use __raw_get_cpu_var ... ns2cycles use per_cpu variables, and will, eventually, find its way into smp_processor_id(). This is not safe in a preemptible kernel; preemption should ideally be disabled. BUG: using smp_processor_id() in preemptible [00000000] code: systemd-modules/367 caller is ns2cycles+0x40/0xb8 Starting stack dump of tid 367, pid 367 (systemd-modules) on cpu 2 at cycle 20969956421 frame 0: 0xfffffff70004b860 dump_stack+0x0/0x20 (sp 0xfffffe407993fa90) frame 1: 0xfffffff7006abc28 debug_smp_processor_id+0x1a8/0x1e0 (sp 0xfffffe407993fa90) frame 2: 0xfffffff7004d7b40 ns2cycles+0x40/0xb8 (sp 0xfffffe407993fab8) frame 3: 0xfffffff7004dc578 __ndelay+0x38/0x80 (sp 0xfffffe407993fae0) However, in this case: - the frequency is the same accross all cores - we use the data read-only - we do not scale the frequency Which means that we can use the __raw_get_cpu_var instead. Signed-off-by: Henrik Austad <haustad@cisco.com> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>		2013-03-26 13:52:16 -04:00
..
configs	netfilter: remove xt_NOTRACK	2012-09-03 13:36:40 +02:00
gxio	arch/tile: provide kernel support for the tilegx USB shim	2012-07-18 16:40:24 -04:00
include	tile: support atomic64_dec_if_positive()	2013-03-22 15:47:00 -04:00
kernel	tile: ns2cycles should use __raw_get_cpu_var	2013-03-26 13:52:16 -04:00
kvm	arch/tile/kvm: remove depends on CONFIG_EXPERIMENTAL	2013-01-17 12:11:26 -08:00
lib	tile: export a handful of symbols appropriately	2013-02-08 13:20:36 -05:00
mm	swap: add per-partition lock for swapfile	2013-02-23 17:50:17 -08:00
Kbuild
Kconfig	arch: remove KCORE_ELF again [tile]	2013-03-22 15:47:11 -04:00
Kconfig.debug	lib: consolidate DEBUG_STACK_USAGE option	2011-05-25 08:39:54 -07:00
Makefile	arch/tile: avoid generating .eh_frame information in modules	2012-10-23 10:21:43 -04:00