redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

virtio_console: Use kmalloc instead of kzalloc

Browse source 
Avoid the more cpu expensive kzalloc when allocating buffers.
Originally kzalloc was intended for isolating the guest from
the host by not sending random guest data to the host. But device
isolation is not yet in place so kzalloc is not really needed.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Sjur Brændeland 2012-10-15 09:57:34 +02:00 committed by Rusty Russell
parent fe5295374e
commit 0127f6855e
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/char/virtio_console.c
View file

@ -349,7 +349,7 @@ static struct port_buffer *alloc_buf(size_t buf_size)
buf = kmalloc(sizeof(*buf), GFP_KERNEL);
if (!buf)
goto fail;
buf->buf = kzalloc(buf_size, GFP_KERNEL);
buf->buf = kmalloc(buf_size, GFP_KERNEL);
if (!buf->buf)
goto free_buf;
buf->len = 0;