qemu/include/migration
Denis V. Lunev 0aa6aefc9c migration (ordinary): move bdrv_invalidate_cache_all of of coroutine context
There is a possibility to hit an assert in qcow2_get_specific_info that
s->qcow_version is undefined. This happens when VM in starting from
suspended state, i.e. it processes incoming migration, and in the same
time 'info block' is called.

The problem is that qcow2_invalidate_cache() closes the image and
memset()s BDRVQcowState in the middle.

The patch moves processing of bdrv_invalidate_cache_all out of
coroutine context for standard migration to avoid that.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Juan Quintela <quintela@redhat.com>
CC: Amit Shah <amit.shah@redhat.com>
Message-Id: <1456304019-10507-2-git-send-email-den@openvz.org>

[Amit: Fix a use-after-free bug]

Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-02-26 20:39:50 +05:30
..
block.h migration: move include files to include/migration/ 2012-12-19 08:31:32 +01:00
migration.h migration (ordinary): move bdrv_invalidate_cache_all of of coroutine context 2016-02-26 20:39:50 +05:30
page_cache.h xbzrle: optimize XBZRLE to decrease the cache misses 2015-01-15 17:49:43 +05:30
postcopy-ram.h Postcopy: Mark nohugepage before discard 2015-11-10 15:00:28 +01:00
qemu-file.h include: Clean up includes 2016-02-23 12:43:05 +00:00
vmstate.h migration/vmstate: document VMStateFlags 2016-02-26 18:40:30 +05:30