Ingo Molnar 0c87197142 perf_counter, x86: Improve interactions with fast-gup ... Improve a few details in perfcounter call-chain recording that makes use of fast-GUP: - Use ACCESS_ONCE() to observe the pte value. ptes are fundamentally racy and can be changed on another CPU, so we have to be careful about how we access them. The PAE branch is already careful with read-barriers - but the non-PAE and 64-bit side needs an ACCESS_ONCE() to make sure the pte value is observed only once. - make the checks a bit stricter so that we can feed it any kind of cra^H^H^H user-space input ;-) Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2009-06-19 16:55:16 +02:00
..
kmemcheck	kmemcheck: add opcode self-testing at boot	2009-06-15 15:49:22 +02:00
dump_pagetables.c	x86: remove (null) in /sys kernel_page_tables	2009-04-14 11:50:22 +02:00
extable.c	x86: uaccess: introduce try and catch framework	2009-01-23 17:17:36 -08:00
fault.c	x86: add hooks for kmemcheck	2009-06-15 12:40:02 +02:00
gup.c	perf_counter, x86: Improve interactions with fast-gup	2009-06-19 16:55:16 +02:00
highmem_32.c	Merge commit 'origin/master' into for-linus/xen/master	2009-04-07 13:34:16 -07:00
hugetlbpage.c	x86: ignore VM_LOCKED when determining if hugetlb-backed page tables can be shared or not	2009-05-29 08:40:03 -07:00
init_32.c	Merge commit 'linus/master' into HEAD	2009-06-15 15:50:49 +02:00
init_64.c	kmemcheck: don't track page tables	2009-06-15 12:40:11 +02:00
init.c	x86: add hooks for kmemcheck	2009-06-15 12:40:02 +02:00
iomap_32.c	Merge commit 'origin/master' into for-linus/xen/master	2009-04-07 13:34:16 -07:00
ioremap.c	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-04-17 09:56:11 -07:00
k8topology_64.c	x86: k8 numa register active regions later	2009-01-06 13:21:21 +01:00
kmmio.c	Merge branch 'linus' into tracing/core	2009-05-07 11:17:34 +02:00
Makefile	kmemcheck: add the kmemcheck core	2009-06-13 15:37:30 +02:00
memtest.c	x86: memtest: use pointers of equal type for comparison	2009-06-11 16:26:35 +02:00
mmap.c	x86: update copyrights	2009-01-31 04:21:18 +01:00
mmio-mod.c	tracing: x86, mmiotrace: only register for die notifier when tracer active	2009-04-29 11:33:34 +02:00
numa_32.c	x86: mm/numa_32.c calculate_numa_remap_pages should use __init	2009-04-17 22:43:13 +02:00
numa_64.c	x86, mm: Fix node_possible_map logic	2009-05-18 09:21:04 +02:00
numa.c	cpumask: convert node_to_cpumask_map[] to cpumask_var_t	2009-03-13 14:35:31 +01:00
pageattr-test.c	x86: make sure the CPA test code's use of _PAGE_UNUSED1 is obvious	2008-09-05 17:09:57 +02:00
pageattr.c	kmemcheck: don't track page tables	2009-06-15 12:40:11 +02:00
pat.c	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-04-17 09:56:11 -07:00
pf_in.c	x86: fix mmiotrace 8-bit register decoding	2008-10-14 10:33:50 +02:00
pf_in.h
pgtable_32.c	x86/32: no need to use set_pte_present in set_pte_vaddr	2009-03-19 14:04:18 +01:00
pgtable.c	kmemcheck: don't track page tables	2009-06-15 12:40:11 +02:00
srat_32.c	x86: Fix a typo in a printk message	2009-05-06 12:23:12 +02:00
srat_64.c	x86, mm: Fix node_possible_map logic	2009-05-18 09:21:04 +02:00
testmmiotrace.c	x86: add far read test to testmmiotrace	2009-03-02 10:20:35 +01:00
tlb.c	x86: add x2apic_wrmsr_fence() to x2apic flush tlb paths	2009-03-18 09:36:14 +01:00