Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20190814a' into staging

Migration pull 2019-08-15

Marcel's vmxnet3 live migraiton fix (that breaks vmxnet3 compatibility
but makes it work)

Error description improvements from Yury.

Multifd fixes from Ivan and Juan.

A load of small cleanups from Wei.

A small cleanup from Marc-André for a future patch.

# gpg: Signature made Wed 14 Aug 2019 19:00:39 BST
# gpg:                using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert/tags/pull-migration-20190814a: (33 commits)
  migration: add some multifd traces
  migration: Make global sem_sync semaphore by channel
  migration: Add traces for multifd terminate threads
  qemu-file: move qemu_{get,put}_counted_string() declarations
  migration/postcopy: use mis->bh instead of allocating a QEMUBH
  migration: rename migration_bitmap_sync_range to ramblock_sync_dirty_bitmap
  migration: update ram_counters for multifd sync packet
  migration: add speed limit for multifd migration
  migration: add qemu_file_update_transfer interface
  migration: always initialise ram_counters for a new migration
  migration: remove unused field bytes_xfer
  hmp: Remove migration capabilities from "info migrate"
  migration/postcopy: use QEMU_IS_ALIGNED to replace host_offset
  migration/postcopy: simplify calculation of run_start and fixup_start_addr
  migration/postcopy: make PostcopyDiscardState a static variable
  migration: extract ram_load_precopy
  migration: return -EINVAL directly when version_id mismatch
  migration: equation is more proper than and to check LOADVM_QUIT
  migration: just pass RAMBlock is enough
  migration: use migration_in_postcopy() to check POSTCOPY_ACTIVE
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 5 insertions, 8 deletions

diff --git a/migration/postcopy-ram.h b/migration/postcopy-ram.h
index 9d55536fd1..9c8bd2bae0 100644
--- a/migration/postcopy-ram.h
+++ b/migration/postcopy-ram.h
@@ -43,10 +43,8 @@ int postcopy_ram_prepare_discard(MigrationIncomingState *mis);
 
 /*
  * Called at the start of each RAMBlock by the bitmap code.
- * Returns a new PDS
  */
-PostcopyDiscardState *postcopy_discard_send_init(MigrationState *ms,
-                                                 const char *name);
+void postcopy_discard_send_init(MigrationState *ms, const char *name);
 
 /*
  * Called by the bitmap code for each chunk to discard.
@@ -55,15 +53,14 @@ PostcopyDiscardState *postcopy_discard_send_init(MigrationState *ms,
  * @start,@length: a range of pages in the migration bitmap in the
  *  RAM block passed to postcopy_discard_send_init() (length=1 is one page)
  */
-void postcopy_discard_send_range(MigrationState *ms, PostcopyDiscardState *pds,
-                                 unsigned long start, unsigned long length);
+void postcopy_discard_send_range(MigrationState *ms, unsigned long start,
+                                 unsigned long length);
 
 /*
  * Called at the end of each RAMBlock by the bitmap code.
- * Sends any outstanding discard messages, frees the PDS.
+ * Sends any outstanding discard messages.
  */
-void postcopy_discard_send_finish(MigrationState *ms,
-                                  PostcopyDiscardState *pds);
+void postcopy_discard_send_finish(MigrationState *ms);
 
 /*
  * Place a page (from) at (host) efficiently