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| author |   Michael S. Tsirkin <mst@redhat.com> | 2014-05-28 17:07:02 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2014-06-09 16:21:06 +0300 |
| commit | 98f9ca0a3faa99b7388578d55eccecf272be4038 (patch) | |
| tree | 991e7bc48ed0cb9da73aefe8cf454a54fcf96435 /drivers/vhost/vhost.h | |
| parent | vhost-net: extend device allocation to vmalloc (diff) | |
| download | linux-dev-98f9ca0a3faa99b7388578d55eccecf272be4038.tar.xz linux-dev-98f9ca0a3faa99b7388578d55eccecf272be4038.zip | |
vhost: replace rcu with mutex
All memory accesses are done under some VQ mutex.
So lock/unlock all VQs is a faster equivalent of synchronize_rcu()
for memory access changes.
Some guests cause a lot of these changes, so it's helpful
to make them faster.
Reported-by: "Gonglei (Arei)" <arei.gonglei@huawei.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vhost/vhost.h')
0 files changed, 0 insertions, 0 deletions