Peter Zijlstra 8ce371f984 lockdep: Fix per-cpu static objects ... Since commit 383776fa75 ("locking/lockdep: Handle statically initialized PER_CPU locks properly") we try to collapse per-cpu locks into a single class by giving them all the same key. For this key we choose the canonical address of the per-cpu object, which would be the offset into the per-cpu area. This has two problems: - there is a case where we run !0 lock->key through static_obj() and expect this to pass; it doesn't for canonical pointers. - 0 is a valid canonical address. Cure both issues by redefining the canonical address as the address of the per-cpu variable on the boot CPU. Since I didn't want to rely on CPU0 being the boot-cpu, or even existing at all, track the boot CPU in a variable. Fixes: 383776fa75 ("locking/lockdep: Handle statically initialized PER_CPU locks properly") Reported-by: kernel test robot <fengguang.wu@intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Borislav Petkov <bp@suse.de> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: linux-mm@kvack.org Cc: wfg@linux.intel.com Cc: kernel test robot <fengguang.wu@intel.com> Cc: LKP <lkp@01.org> Link: http://lkml.kernel.org/r/20170320114108.kbvcsuepem45j5cr@hirez.programming.kicks-ass.net Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2017-03-26 15:09:45 +02:00
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acpi	Merge branches 'acpi-bus', 'acpi-sleep' and 'acpi-processor'	2017-02-20 14:28:03 +01:00
asm-generic	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
clocksource	…
crypto	crypto: api - Add crypto_requires_off helper	2017-02-27 18:09:39 +08:00
drm	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
dt-bindings	scripts/spelling.txt: add "overide" pattern and fix typo instances	2017-03-09 17:01:09 -08:00
keys	KEYS: Differentiate uses of rcu_dereference_key() and user_key_payload()	2017-03-02 10:09:00 +11:00
kvm	KVM: arm/arm64: Emulate the EL1 phys timer registers	2017-02-08 15:13:37 +00:00
linux	lockdep: Fix per-cpu static objects	2017-03-26 15:09:45 +02:00
math-emu	…
media	media fixes for v4.11-rc2	2017-03-09 15:50:56 -08:00
memory	…
misc	…
net	scripts/spelling.txt: add "overide" pattern and fix typo instances	2017-03-09 17:01:09 -08:00
pcmcia	…
ras	…
rdma	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
rxrpc	…
scsi	scsi: remove scsi_execute_req_flags	2017-02-23 16:57:36 -05:00
soc	ARC updates for 4.11 rc1	2017-02-22 10:33:53 -08:00
sound	sched/headers: Prepare to remove spurious <linux/sched.h> inclusion dependencies	2017-03-02 08:42:41 +01:00
target	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
trace	There was some breakage with the changes for jump labels in the 4.11 merge	2017-03-07 09:37:28 -08:00
uapi	userfaultfd: non-cooperative: rollback userfaultfd_exit	2017-03-09 17:01:09 -08:00
video	…
xen	Merge branch 'stable/for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb	2017-03-07 10:23:17 -08:00
Kbuild	…