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| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2017-01-31 14:23:08 +0300 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2017-02-12 00:47:42 +0100 |
| commit | 16e977d506bcc2d9f7daa4a9f7cc2b48536d9da6 (patch) | |
| tree | a88950216643f04996dd9d8735ed6bb2069a1d5e /hw/misc/hyperv_testdev.c | |
| parent | a6baa60807f88ba7d97b1787797fb58882ccbfb9 (diff) | |
| download | focaccia-qemu-16e977d506bcc2d9f7daa4a9f7cc2b48536d9da6.tar.gz focaccia-qemu-16e977d506bcc2d9f7daa4a9f7cc2b48536d9da6.zip | |
block: bdrv_invalidate_cache: invalidate children first
Current implementation invalidates firstly parent bds and then its children. This leads to the following bug: after incoming migration, in bdrv_invalidate_cache_all: 1. invalidate parent bds - reopen it with BDRV_O_INACTIVE cleared 2. child is not yet invalidated 3. parent check that its BDRV_O_INACTIVE is cleared 4. parent writes to child 5. assert in bdrv_co_pwritev, as BDRV_O_INACTIVE is set for child This patch fixes it by just changing invalidate sequence: invalidate children first. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-id: 20170131112308.54189-1-vsementsov@virtuozzo.com Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'hw/misc/hyperv_testdev.c')
0 files changed, 0 insertions, 0 deletions