diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2018-04-27 17:23:12 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2018-05-11 16:43:05 +0100 |
| commit | 31be8a2a97ecba7d31a82932286489cac318e9e9 (patch) | |
| tree | fda46bdc3f416a03f950e61621a0397e46665b5f /net/net.c | |
| parent | dd577a26ff03b6829721b1ffbbf9e7c411b72378 (diff) | |
| download | focaccia-qemu-31be8a2a97ecba7d31a82932286489cac318e9e9.tar.gz focaccia-qemu-31be8a2a97ecba7d31a82932286489cac318e9e9.zip | |
block/file-posix: add x-check-page-cache=on|off option
mincore(2) checks whether pages are resident. Use it to verify that page cache has been dropped. You can trigger a verification failure by mmapping the image file from another process that loads a byte from a page, forcing it to become resident. bdrv_co_invalidate_cache() will fail while that process is alive. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 20180427162312.18583-3-stefanha@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'net/net.c')
0 files changed, 0 insertions, 0 deletions