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system/physmem: Replace qemu_mutex_lock() calls with QEMU_LOCK_GUARD

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Simplify cpu_[un]register_map_client() and cpu_notify_map_clients()
by replacing the pair of qemu_mutex_lock/qemu_mutex_unlock calls by
the WITH_QEMU_LOCK_GUARD() macro.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Mattias Nissler <mnissler@rivosinc.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20240507123025.93391-2-philmd@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2024-05-07 14:12:46 +02:00
parent e6578f1f68
commit d5e268197a
1 changed files with 4 additions and 6 deletions
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10
system/physmem.c
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@ -25,6 +25,7 @@
#include "qemu/cacheflush.h" #include "qemu/cacheflush.h"
#include "qemu/hbitmap.h" #include "qemu/hbitmap.h"
#include "qemu/madvise.h" #include "qemu/madvise.h"
#include "qemu/lockable.h"
#ifdef CONFIG_TCG #ifdef CONFIG_TCG
#include "hw/core/tcg-cpu-ops.h" #include "hw/core/tcg-cpu-ops.h"
@ -3086,7 +3087,7 @@ void cpu_register_map_client(QEMUBH *bh)
{ {
MapClient *client = g_malloc(sizeof(*client)); MapClient *client = g_malloc(sizeof(*client));
qemu_mutex_lock(&map_client_list_lock); QEMU_LOCK_GUARD(&map_client_list_lock);
client->bh = bh; client->bh = bh;
QLIST_INSERT_HEAD(&map_client_list, client, link); QLIST_INSERT_HEAD(&map_client_list, client, link);
/* Write map_client_list before reading in_use. */ /* Write map_client_list before reading in_use. */
@ -3094,7 +3095,6 @@ void cpu_register_map_client(QEMUBH *bh)
if (!qatomic_read(&bounce.in_use)) { if (!qatomic_read(&bounce.in_use)) {
cpu_notify_map_clients_locked(); cpu_notify_map_clients_locked();
} }
qemu_mutex_unlock(&map_client_list_lock);
} }
void cpu_exec_init_all(void) void cpu_exec_init_all(void)
@ -3117,21 +3117,19 @@ void cpu_unregister_map_client(QEMUBH *bh)
{ {
MapClient *client; MapClient *client;
qemu_mutex_lock(&map_client_list_lock); QEMU_LOCK_GUARD(&map_client_list_lock);
QLIST_FOREACH(client, &map_client_list, link) { QLIST_FOREACH(client, &map_client_list, link) {
if (client->bh == bh) { if (client->bh == bh) {
cpu_unregister_map_client_do(client); cpu_unregister_map_client_do(client);
break; break;
} }
} }
qemu_mutex_unlock(&map_client_list_lock);
} }
static void cpu_notify_map_clients(void) static void cpu_notify_map_clients(void)
{ {
qemu_mutex_lock(&map_client_list_lock); QEMU_LOCK_GUARD(&map_client_list_lock);
cpu_notify_map_clients_locked(); cpu_notify_map_clients_locked();
qemu_mutex_unlock(&map_client_list_lock);
} }
static bool flatview_access_valid(FlatView *fv, hwaddr addr, hwaddr len, static bool flatview_access_valid(FlatView *fv, hwaddr addr, hwaddr len,