Peter Zijlstra 9dc7ad2b67 perf/aux: Fix AUX buffer serialization ... commit 2ab9d830262c132ab5db2f571003d80850d56b2a upstream. Ole reported that event->mmap_mutex is strictly insufficient to serialize the AUX buffer, add a per RB mutex to fully serialize it. Note that in the lock order comment the perf_event::mmap_mutex order was already wrong, that is, it nesting under mmap_lock is not new with this patch. Fixes: 45bfb2e504 ("perf: Add AUX area to ring buffer for raw data streams") Reported-by: Ole <ole@binarygecko.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-09-12 11:10:27 +02:00
..
callchain.c
core.c	perf/aux: Fix AUX buffer serialization	2024-09-12 11:10:27 +02:00
hw_breakpoint_test.c
hw_breakpoint.c
internal.h	perf/aux: Fix AUX buffer serialization	2024-09-12 11:10:27 +02:00
Makefile
ring_buffer.c	perf/aux: Fix AUX buffer serialization	2024-09-12 11:10:27 +02:00
uprobes.c	uprobes: Use kzalloc to allocate xol area	2024-09-12 11:10:27 +02:00