Kan Liang 2ed11312eb Revert "perf: Remove the extra validity check on nr_pages" ... This reverts commit 74390aa556 ("perf: Remove the extra validity check on nr_pages") nr_pages equals to number of pages - 1 in perf_mmap. So nr_pages = 0 is valid. So the nr_pages != 0 && !is_power_of_2(nr_pages) are all needed for checking. Otherwise, for example, perf test 6 failed. # perf test 6 6: x86 rdpmc test :Error: mmap() syscall returned with (Invalid argument) FAILED! Signed-off-by: Kan Liang <kan.liang@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Kaixu Xia <xiakaixu@huawei.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1425280466-7830-1-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2015-03-02 18:25:38 -03:00
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callchain.c	Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2014-10-15 07:48:18 +02:00
core.c	Revert "perf: Remove the extra validity check on nr_pages"	2015-03-02 18:25:38 -03:00
hw_breakpoint.c	perf: Fix and clean up initialization of pmu::event_idx	2014-10-28 10:51:01 +01:00
internal.h	perf: Fix arch_perf_out_copy_user default	2013-11-06 12:34:25 +01:00
Makefile	ftrace: allow architectures to specify ftrace compile options	2015-01-29 09:19:19 +01:00
ring_buffer.c	perf: Use POLLIN instead of POLL_IN for perf poll data in flag	2015-02-04 08:07:13 +01:00
uprobes.c	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2014-12-15 15:52:01 -08:00