Peter Zijlstra c4b69bee3f perf/aux: Fix AUX buffer serialization ... commit 2ab9d83026 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 11:11:42 +02:00
..
callchain.c	uaccess: remove CONFIG_SET_FS	2022-02-25 09:36:06 +01:00
core.c	perf/aux: Fix AUX buffer serialization	2024-09-12 11:11:42 +02:00
hw_breakpoint_test.c	perf/hw_breakpoint: remove MODULE_LICENSE in non-modules	2023-04-13 13:13:52 -07:00
hw_breakpoint.c	perf/hw_breakpoint: Remove arch breakpoint hooks	2023-08-16 23:54:50 +10:00
internal.h	perf/aux: Fix AUX buffer serialization	2024-09-12 11:11:42 +02:00
Makefile	perf/hw_breakpoint: Add KUnit test for constraints accounting	2022-08-30 10:56:20 +02:00
ring_buffer.c	perf/aux: Fix AUX buffer serialization	2024-09-12 11:11:42 +02:00
uprobes.c	uprobes: Use kzalloc to allocate xol area	2024-09-12 11:11:42 +02:00