Displaying 6 results from an estimated 6 matches for "random_data_size".
2008 May 26
1
[PATCH] virtio_rng: dont use vmalloced addresses for virtio
If virtio_rng is build as a module, random_data is an address in vmalloc
space. As virtio expects guest real addresses, this can cause any kind of
funny behaviour, so lets allocate random_data dynamically with kmalloc.
Signed-off-by: Christian Borntraeger <borntraeger at de.ibm.com>
---
drivers/char/hw_random/virtio-rng.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
2008 May 26
1
[PATCH] virtio_rng: dont use vmalloced addresses for virtio
If virtio_rng is build as a module, random_data is an address in vmalloc
space. As virtio expects guest real addresses, this can cause any kind of
funny behaviour, so lets allocate random_data dynamically with kmalloc.
Signed-off-by: Christian Borntraeger <borntraeger at de.ibm.com>
---
drivers/char/hw_random/virtio-rng.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
2009 Sep 21
0
[PATCH 2/6] virtio: make add_buf return capacity remaining
...;pool);
return false;
}
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -51,7 +51,7 @@ static void register_buffer(void)
sg_init_one(&sg, random_data+data_left, RANDOM_DATA_SIZE-data_left);
/* There should always be room for one buffer. */
- if (vq->vq_ops->add_buf(vq, &sg, 0, 1, random_data) != 0)
+ if (vq->vq_ops->add_buf(vq, &sg, 0, 1, random_data) < 0)
BUG();
vq->vq_ops->kick(vq);
}
diff --git a/drivers/char/virtio_console.c b/drive...
2009 Sep 21
0
[PATCH 2/6] virtio: make add_buf return capacity remaining
...;pool);
return false;
}
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -51,7 +51,7 @@ static void register_buffer(void)
sg_init_one(&sg, random_data+data_left, RANDOM_DATA_SIZE-data_left);
/* There should always be room for one buffer. */
- if (vq->vq_ops->add_buf(vq, &sg, 0, 1, random_data) != 0)
+ if (vq->vq_ops->add_buf(vq, &sg, 0, 1, random_data) < 0)
BUG();
vq->vq_ops->kick(vq);
}
diff --git a/drivers/char/virtio_console.c b/drive...
2009 Aug 18
2
[PATCH 1/2] virtio: Add a can_add_buf helper
This helper returns 1 if a call to add_buf will not fail
with -ENOSPC.
This will help callers that do
while(1) {
alloc()
if (add_buf()) {
free();
break;
}
}
This will result in one less alloc/free exercise.
Signed-off-by: Amit Shah <amit.shah at redhat.com>
---
drivers/virtio/virtio_ring.c | 8 ++++++++
include/linux/virtio.h | 5 +++++
2 files changed, 13
2009 Aug 18
2
[PATCH 1/2] virtio: Add a can_add_buf helper
This helper returns 1 if a call to add_buf will not fail
with -ENOSPC.
This will help callers that do
while(1) {
alloc()
if (add_buf()) {
free();
break;
}
}
This will result in one less alloc/free exercise.
Signed-off-by: Amit Shah <amit.shah at redhat.com>
---
drivers/virtio/virtio_ring.c | 8 ++++++++
include/linux/virtio.h | 5 +++++
2 files changed, 13