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lockable: replaced locks with lock guard macros where appropriate

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- ran regexp "qemu_mutex_lock\(.*\).*\n.*if" to find targets
- replaced result with QEMU_LOCK_GUARD if all unlocks at function end
- replaced result with WITH_QEMU_LOCK_GUARD if unlock not at end

Signed-off-by: Daniel Brodsky <dnbrdsky@gmail.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-id: 20200404042108.389635-3-dnbrdsky@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Daniel Brodsky 2020-04-03 21:21:08 -07:00 • committed by Stefan Hajnoczi
parent 56f21718b8
commit 6e8a355de6
15 changed files with 83 additions and 106 deletions
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3
migration/migration.c
View file

@ -1653,11 +1653,10 @@ static void migrate_fd_cleanup_bh(void *opaque)
void migrate_set_error(MigrationState *s, const Error *error)
{
qemu_mutex_lock(&s->error_mutex);
QEMU_LOCK_GUARD(&s->error_mutex);
if (!s->error) {
s->error = error_copy(error);
}
qemu_mutex_unlock(&s->error_mutex);
}
void migrate_fd_error(MigrationState *s, const Error *error)

8
migration/multifd.c
View file

@ -894,11 +894,11 @@ void multifd_recv_sync_main(void)
for (i = 0; i < migrate_multifd_channels(); i++) {
MultiFDRecvParams *p = &multifd_recv_state->params[i];
qemu_mutex_lock(&p->mutex);
if (multifd_recv_state->packet_num < p->packet_num) {
multifd_recv_state->packet_num = p->packet_num;
WITH_QEMU_LOCK_GUARD(&p->mutex) {
if (multifd_recv_state->packet_num < p->packet_num) {
multifd_recv_state->packet_num = p->packet_num;
}
}
qemu_mutex_unlock(&p->mutex);
trace_multifd_recv_sync_main_signal(p->id);
qemu_sem_post(&p->sem_sync);
}

3
migration/ram.c
View file

@ -1369,7 +1369,7 @@ static RAMBlock *unqueue_page(RAMState *rs, ram_addr_t *offset)
return NULL;
}
qemu_mutex_lock(&rs->src_page_req_mutex);
QEMU_LOCK_GUARD(&rs->src_page_req_mutex);
if (!QSIMPLEQ_EMPTY(&rs->src_page_requests)) {
struct RAMSrcPageRequest *entry =
QSIMPLEQ_FIRST(&rs->src_page_requests);
@ -1386,7 +1386,6 @@ static RAMBlock *unqueue_page(RAMState *rs, ram_addr_t *offset)
migration_consume_urgent_request();
}
}
qemu_mutex_unlock(&rs->src_page_req_mutex);
return block;
}