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cpu: expose qemu_cpu_list_lock for lock-guard use

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Expose qemu_cpu_list_lock globally so that we can use
WITH_QEMU_LOCK_GUARD and QEMU_LOCK_GUARD to simplify a few code paths
now and in future.

Signed-off-by: Jamie Iles <quic_jiles@quicinc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230427020925.51003-2-quic_jiles@quicinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Jamie Iles 2023-04-27 03:09:24 +01:00 • committed by Richard Henderson
parent eb0153efa6
commit 370ed60029
5 changed files with 26 additions and 25 deletions
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13
linux-user/elfload.c
View file

@ -17,6 +17,7 @@
#include "qemu/guest-random.h"
#include "qemu/units.h"
#include "qemu/selfmap.h"
#include "qemu/lockable.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
#include "target_signal.h"
@ -4238,14 +4239,14 @@ static int fill_note_info(struct elf_note_info *info,
info->notes_size += note_size(&info->notes[i]);
/* read and fill status of all threads */
cpu_list_lock();
CPU_FOREACH(cpu) {
if (cpu == thread_cpu) {
continue;
WITH_QEMU_LOCK_GUARD(&qemu_cpu_list_lock) {
CPU_FOREACH(cpu) {
if (cpu == thread_cpu) {
continue;
}
fill_thread_info(info, cpu->env_ptr);
}
fill_thread_info(info, cpu->env_ptr);
}
cpu_list_unlock();
return (0);
}