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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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51
block/nfs.c
View file

@ -273,15 +273,14 @@ static int coroutine_fn nfs_co_preadv(BlockDriverState *bs, uint64_t offset,
nfs_co_init_task(bs, &task);
task.iov = iov;
qemu_mutex_lock(&client->mutex);
if (nfs_pread_async(client->context, client->fh,
offset, bytes, nfs_co_generic_cb, &task) != 0) {
qemu_mutex_unlock(&client->mutex);
return -ENOMEM;
}
WITH_QEMU_LOCK_GUARD(&client->mutex) {
if (nfs_pread_async(client->context, client->fh,
offset, bytes, nfs_co_generic_cb, &task) != 0) {
return -ENOMEM;
}
nfs_set_events(client);
qemu_mutex_unlock(&client->mutex);
nfs_set_events(client);
}
while (!task.complete) {
qemu_coroutine_yield();
}
@ -320,19 +319,18 @@ static int coroutine_fn nfs_co_pwritev(BlockDriverState *bs, uint64_t offset,
buf = iov->iov[0].iov_base;
}
qemu_mutex_lock(&client->mutex);
if (nfs_pwrite_async(client->context, client->fh,
offset, bytes, buf,
nfs_co_generic_cb, &task) != 0) {
qemu_mutex_unlock(&client->mutex);
if (my_buffer) {
g_free(buf);
WITH_QEMU_LOCK_GUARD(&client->mutex) {
if (nfs_pwrite_async(client->context, client->fh,
offset, bytes, buf,
nfs_co_generic_cb, &task) != 0) {
if (my_buffer) {
g_free(buf);
}
return -ENOMEM;
}
return -ENOMEM;
}
nfs_set_events(client);
qemu_mutex_unlock(&client->mutex);
nfs_set_events(client);
}
while (!task.complete) {
qemu_coroutine_yield();
}
@ -355,15 +353,14 @@ static int coroutine_fn nfs_co_flush(BlockDriverState *bs)
nfs_co_init_task(bs, &task);
qemu_mutex_lock(&client->mutex);
if (nfs_fsync_async(client->context, client->fh, nfs_co_generic_cb,
&task) != 0) {
qemu_mutex_unlock(&client->mutex);
return -ENOMEM;
}
WITH_QEMU_LOCK_GUARD(&client->mutex) {
if (nfs_fsync_async(client->context, client->fh, nfs_co_generic_cb,
&task) != 0) {
return -ENOMEM;
}
nfs_set_events(client);
qemu_mutex_unlock(&client->mutex);
nfs_set_events(client);
}
while (!task.complete) {
qemu_coroutine_yield();
}