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author | Peter Maydell <peter.maydell@linaro.org> | 2014-07-14 13:09:29 +0100 |
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committer | Peter Maydell <peter.maydell@linaro.org> | 2014-07-14 13:09:29 +0100 |
commit | 7a6d04e73fdd571234e05dcad96895fafb3f22f0 (patch) | |
tree | acf7065c975ca4056f3041c58907803239b9941e /block/qcow2.c | |
parent | c15a34eda0f270888a0e4676997317e1bd7894b8 (diff) | |
parent | 58ac321135af890b503ebe56d0d00e184779918f (diff) | |
download | hqemu-7a6d04e73fdd571234e05dcad96895fafb3f22f0.zip hqemu-7a6d04e73fdd571234e05dcad96895fafb3f22f0.tar.gz |
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block patches for 2.1.0-rc2 (v2)
# gpg: Signature made Mon 14 Jul 2014 11:04:12 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream: (22 commits)
ide: Treat read/write beyond end as invalid
virtio-blk: Treat read/write beyond end as invalid
virtio-blk: Bypass error action and I/O accounting on invalid r/w
virtio-blk: Factor common checks out of virtio_blk_handle_read/write()
dma-helpers: Fix too long qiov
qtest: fix vhost-user-test compilation with old GLib
tests: Fix unterminated string output visitor enum human string
AioContext: do not rely on aio_poll(ctx, true) result to end a loop
virtio-blk: embed VirtQueueElement in VirtIOBlockReq
virtio-blk: avoid g_slice_new0() for VirtIOBlockReq and VirtQueueElement
dataplane: do not free VirtQueueElement in vring_push()
virtio-blk: avoid dataplane VirtIOBlockReq early free
block: Assert qiov length matches request length
qed: Make qiov match request size until backing file EOF
qcow2: Make qiov match request size until backing file EOF
block: Make qiov match the request size until EOF
AioContext: speed up aio_notify
test-aio: fix GSource-based timer test
block: drop aio functions that operate on the main AioContext
block: prefer aio_poll to qemu_aio_wait
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'block/qcow2.c')
-rw-r--r-- | block/qcow2.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index 67e55c9..b0faa69 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -1020,11 +1020,20 @@ static coroutine_fn int qcow2_co_readv(BlockDriverState *bs, int64_t sector_num, n1 = qcow2_backing_read1(bs->backing_hd, &hd_qiov, sector_num, cur_nr_sectors); if (n1 > 0) { + QEMUIOVector local_qiov; + + qemu_iovec_init(&local_qiov, hd_qiov.niov); + qemu_iovec_concat(&local_qiov, &hd_qiov, 0, + n1 * BDRV_SECTOR_SIZE); + BLKDBG_EVENT(bs->file, BLKDBG_READ_BACKING_AIO); qemu_co_mutex_unlock(&s->lock); ret = bdrv_co_readv(bs->backing_hd, sector_num, - n1, &hd_qiov); + n1, &local_qiov); qemu_co_mutex_lock(&s->lock); + + qemu_iovec_destroy(&local_qiov); + if (ret < 0) { goto fail; } |