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| author | Michael S. Tsirkin <mst@redhat.com> | 2010-11-04 13:24:24 +0100 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2010-11-24 05:51:11 +0100 |
| commit | 7ae4b866f86f9ab7b99484b56dd303a860ad1cc9 (patch) | |
| tree | 247cd281bdf2e892180ff3407377d0a212c30016 /kernel | |
| parent | module: Update prototype for ref_module (formerly use_module) (diff) | |
| download | linux-7ae4b866f86f9ab7b99484b56dd303a860ad1cc9.tar.xz linux-7ae4b866f86f9ab7b99484b56dd303a860ad1cc9.zip | |
virtio: return correct capacity to users
We can't rely on indirect buffers for capacity
calculations because they need a memory allocation
which might fail. In particular, virtio_net can get
into this situation under stress, and it drops packets
and performs badly.
So return the number of buffers we can guarantee users.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reported-By: Krishna Kumar2 <krkumar2@in.ibm.com>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions