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ethernet: Device statistics must be updated using atomic operations.

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Both send and receive can be called concurrently, and there aren't
any locks protecting these fields, so they must be updated with atomics.
This commit is contained in:
Augustin Cavalier
2023-11-23 15:02:45 -05:00
parent 6461885e2e
commit 75874bab1a
1 changed files with 7 additions and 7 deletions
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src/add-ons/kernel/network/devices/ethernet/ethernet.cpp
+7 -7
View File
@@ -328,14 +328,14 @@ ethernet_send_data(net_device *_device, net_buffer *buffer)
//dprintf("sent: %ld\n", bytesWritten);
if (bytesWritten < 0) {
device->stats.send.errors++;
atomic_add((int32*)&device->stats.send.errors, 1);
if (allocated)
gBufferModule->free(allocated);
return errno;
}
device->stats.send.packets++;
device->stats.send.bytes += bytesWritten;
atomic_add((int32*)&device->stats.send.packets, 1);
atomic_add64((int64*)&device->stats.send.bytes, bytesWritten);
gBufferModule->free(original);
if (allocated)
@@ -382,7 +382,7 @@ ethernet_receive_data(net_device *_device, net_buffer **_buffer)
bytesRead = read(device->fd, iovec.iov_base, iovec.iov_len);
if (bytesRead < 0) {
device->stats.receive.errors++;
atomic_add((int32*)&device->stats.receive.errors, 1);
status = errno;
goto err;
}
@@ -393,12 +393,12 @@ ethernet_receive_data(net_device *_device, net_buffer **_buffer)
else
status = gBufferModule->trim(buffer, bytesRead);
if (status < B_OK) {
device->stats.receive.dropped++;
atomic_add((int32*)&device->stats.receive.dropped, 1);
goto err;
}
device->stats.receive.bytes += bytesRead;
device->stats.receive.packets++;
atomic_add((int32*)&device->stats.receive.packets, 1);
atomic_add64((int64*)&device->stats.receive.bytes, bytesRead);
*_buffer = buffer;
return B_OK;