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| author | Jan Beulich <jbeulich@suse.com> | 2013-06-17 15:16:33 -0400 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-06-17 15:17:15 -0400 |
| commit | 8d9256906a97c24e97e016482b9be06ea2532b05 (patch) | |
| tree | d6e1828f08344fa7f183ea9deddb8b898b26d5ab /include/xen/interface/grant_table.h | |
| parent | 604c499cbbcc3d5fe5fb8d53306aa0fae1990109 (diff) | |
| download | blackbird-op-linux-8d9256906a97c24e97e016482b9be06ea2532b05.tar.gz blackbird-op-linux-8d9256906a97c24e97e016482b9be06ea2532b05.zip | |
xen/io/ring.h: new macro to detect whether there are too many requests on the ring
Backends may need to protect themselves against an insane number of
produced requests stored by a frontend, in case they iterate over
requests until reaching the req_prod value. There can't be more
requests on the ring than the difference between produced requests
and produced (but possibly not yet published) responses.
This is a more strict alternative to a patch previously posted by
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'include/xen/interface/grant_table.h')
0 files changed, 0 insertions, 0 deletions
