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| author | Vladimir Sementsov-Ogievskiy | 2020-03-12 09:19:49 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi | 2020-03-16 12:46:11 +0100 |
| commit | 4ab78b19189a81038e744728ed949d09aa477550 (patch) | |
| tree | 0991e518dd75257fb71d4098e478b3a849fe62a3 /scripts/simplebench | |
| parent | Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20200313a'... (diff) | |
| download | qemu-4ab78b19189a81038e744728ed949d09aa477550.tar.gz qemu-4ab78b19189a81038e744728ed949d09aa477550.tar.xz qemu-4ab78b19189a81038e744728ed949d09aa477550.zip | |
block/io: fix bdrv_co_do_copy_on_readv
Prior to 1143ec5ebf4 it was OK to qemu_iovec_from_buf() from aligned-up
buffer to original qiov, as qemu_iovec_from_buf() will stop at qiov end
anyway.
But after 1143ec5ebf4 we assume that bdrv_co_do_copy_on_readv works on
part of original qiov, defined by qiov_offset and bytes. So we must not
touch qiov behind qiov_offset+bytes bound. Fix it.
Cc: qemu-stable@nongnu.org # v4.2
Fixes: 1143ec5ebf4
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20200312081949.5350-1-vsementsov@virtuozzo.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'scripts/simplebench')
0 files changed, 0 insertions, 0 deletions