git.stricted.de - GitHub/LineageOS/android_kernel_motorola

author	Peter Zijlstra <peterz@infradead.org>
	Tue, 5 Sep 2017 11:38:24 +0000 (13:38 +0200)
committer	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
	Sun, 10 Dec 2017 12:40:40 +0000 (13:40 +0100)
commit	4ee9572b109de66357a73e27effed5266a449183
tree	70a1878700a7b2cdb61910fdc8e6a36885ed3d62	tree \| snapshot (tar.gz zip)
parent	9851961159b6d33b7523e73cdedf156204a731bd	commit \| diff

perf/core: Fix __perf_read_group_add() locking

[ Upstream commit a9cd8194e1e6bd09619954721dfaf0f94fe2003e ]

Event timestamps are serialized using ctx->lock, make sure to hold it
over reading all values.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>