diff options
| author | Juergen Gross <jgross@suse.com> | 2021-11-29 13:46:12 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-08 08:44:06 +0100 |
| commit | 7225148b877a56a12c4b41fd7b70930a5d457b53 (patch) | |
| tree | 8d104732b950a4ae74bfea515455fa639efbe200 /drivers/net/xen-netback/interface.c | |
| parent | 4f5a2093238e438c2a196823e2f5da088a97d37b (diff) | |
xen/blkfront: read response from backend only once
commit 71b66243f9898d0e54296b4e7035fb33cdcb0707 upstream.
In order to avoid problems in case the backend is modifying a response
on the ring page while the frontend has already seen it, just read the
response into a local buffer in one go and then operate on that buffer
only.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Link: https://lore.kernel.org/r/20210730103854.12681-2-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
0 files changed, 0 insertions, 0 deletions