Displaying 4 results from an estimated 4 matches for "b12176f".
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512176
2014 Feb 13
2
[PATCH net v2] vhost: fix a theoretical race in device cleanup
...usly posted as part of patch
series, but it's an independent fix really.
Theoretical race so not needed for stable I think.
changes from v1:
fixed typo in commit log
drivers/vhost/net.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index b12176f..f1be80d 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -308,6 +308,8 @@ static void vhost_zerocopy_callback(struct ubuf_info *ubuf, bool success)
struct vhost_virtqueue *vq = ubufs->vq;
int cnt;
+ rcu_read_lock_bh();
+
/* set len to mark this desc buffers done DMA */
vq...
2014 Feb 13
2
[PATCH net v2] vhost: fix a theoretical race in device cleanup
...usly posted as part of patch
series, but it's an independent fix really.
Theoretical race so not needed for stable I think.
changes from v1:
fixed typo in commit log
drivers/vhost/net.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index b12176f..f1be80d 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -308,6 +308,8 @@ static void vhost_zerocopy_callback(struct ubuf_info *ubuf, bool success)
struct vhost_virtqueue *vq = ubufs->vq;
int cnt;
+ rcu_read_lock_bh();
+
/* set len to mark this desc buffers done DMA */
vq...
2014 Feb 13
2
[PATCH net v2] vhost: fix ref cnt checking deadlock
...Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
---
This patch is needed for 3.14 and -stable.
drivers/vhost/net.c | 41 ++++++++++++++++++++---------------------
1 file changed, 20 insertions(+), 21 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 831eb4f..b12176f 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -70,7 +70,12 @@ enum {
};
struct vhost_net_ubuf_ref {
- struct kref kref;
+ /* refcount follows semantics similar to kref:
+ * 0: object is released
+ * 1: no outstanding ubufs
+ * >1: outstanding ubufs
+ */
+ atomic_t refco...
2014 Feb 13
2
[PATCH net v2] vhost: fix ref cnt checking deadlock
...Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
---
This patch is needed for 3.14 and -stable.
drivers/vhost/net.c | 41 ++++++++++++++++++++---------------------
1 file changed, 20 insertions(+), 21 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 831eb4f..b12176f 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -70,7 +70,12 @@ enum {
};
struct vhost_net_ubuf_ref {
- struct kref kref;
+ /* refcount follows semantics similar to kref:
+ * 0: object is released
+ * 1: no outstanding ubufs
+ * >1: outstanding ubufs
+ */
+ atomic_t refco...