qemu/migration
Peter Xu a725ef9fe3 migration: fix incorrect bitmap size calculation
The calculation on size of received bitmap is incorrect for postcopy
recovery.  Here we wanted to let the size to cover all the valid bits in
the bitmap, we should use DIV_ROUND_UP() instead of a division.

For example, a RAMBlock with size=4K (which contains only one single 4K
page) will have nbits=1, then nbits/8=0, then the real bitmap won't be
sent to source at all.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180710091902.28780-4-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10 12:56:18 +01:00
..
block-dirty-bitmap.c dirty-bitmap: fix double lock on bitmap enabling 2018-07-04 02:12:49 -04:00
block.c migration/block: compare only read blocks against the rate limiter 2018-03-23 16:45:18 +00:00
block.h migration: disable auto-converge during bulk block migration 2017-09-27 11:27:14 +01:00
channel.c Migration+TLS: Fix crash due to double cleanup 2018-05-15 22:13:08 +02:00
channel.h migration: Route errors down through migration_channel_connect 2018-02-06 10:55:12 +00:00
colo-comm.c migration: pre_save return int 2017-09-27 11:35:59 +01:00
colo-failover.c Include less of the generated modular QAPI headers 2018-03-02 13:45:50 -06:00
colo.c Include less of the generated modular QAPI headers 2018-03-02 13:45:50 -06:00
exec.c migration: unify incoming processing 2018-07-10 12:48:53 +01:00
exec.h migration: Export exec.c functions in its own file 2017-06-01 18:49:22 +02:00
fd.c migration: unify incoming processing 2018-07-10 12:48:53 +01:00
fd.h migration: Export fd.c functions in its own file 2017-06-01 18:49:22 +02:00
global_state.c migration: pre_save return int 2017-09-27 11:35:59 +01:00
Makefile.objs migration: add postcopy migration of dirty bitmaps 2018-03-13 17:06:09 -04:00
migration.c migration: unify incoming processing 2018-07-10 12:48:53 +01:00
migration.h migration: Wake rate limiting for urgent requests 2018-06-15 14:40:56 +01:00
page_cache.c migration: use local path for local headers 2018-06-01 19:20:38 +03:00
page_cache.h migration: Make cache_init() take an error parameter 2017-10-23 18:03:25 +02:00
postcopy-ram.c postcopy: drop ram_pages parameter from postcopy_ram_incoming_init() 2018-06-27 13:28:31 +02:00
postcopy-ram.h postcopy: drop ram_pages parameter from postcopy_ram_incoming_init() 2018-06-27 13:28:31 +02:00
qemu-file-channel.c migration: Split qemu-file.h 2017-06-01 18:49:22 +02:00
qemu-file-channel.h migration: Export qemu-file-channel.c functions in its own file 2017-05-18 19:20:50 +02:00
qemu-file.c migration: detect compression and decompression errors 2018-04-25 18:04:08 +01:00
qemu-file.h migration: stop compression to allocate and free memory frequently 2018-04-25 18:04:06 +01:00
qjson.c qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF 2018-05-04 08:27:53 +02:00
qjson.h typedefs: add QJSON 2018-06-15 14:40:56 +01:00
ram.c migration: fix incorrect bitmap size calculation 2018-07-10 12:56:18 +01:00
ram.h migration: move income process out of multifd 2018-07-10 12:48:53 +01:00
rdma.c migration: Fixes for non-migratable RAMBlocks 2018-06-15 14:40:56 +01:00
rdma.h migration: Export rdma.c functions in its own file 2017-06-01 18:49:23 +02:00
savevm.c migration: loosen recovery check when load vm 2018-07-10 12:56:07 +01:00
savevm.h migration: introduce SaveVMHandlers.resume_prepare 2018-05-15 20:56:55 +02:00
socket.c migration: unify incoming processing 2018-07-10 12:48:53 +01:00
socket.h migration: Export functions to create send channels 2018-05-15 20:24:27 +02:00
tls.c qio: non-default context for TLS handshake 2018-03-06 10:19:07 +00:00
tls.h migration: Export tls.c functions in its own file 2017-06-01 18:49:23 +02:00
trace-events migration/next for 20180627 2018-06-28 15:31:42 +01:00
vmstate-types.c migration: Route more error paths 2017-09-27 11:44:18 +01:00
vmstate.c acpi, vhost, misc: fixes, features 2018-06-04 10:15:16 +01:00
xbzrle.c migration: Create migration/xbzrle.h 2017-05-18 18:04:54 +02:00
xbzrle.h migration: Create migration/xbzrle.h 2017-05-18 18:04:54 +02:00