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migration: Poison ramblock loops in migration

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The migration code should be using the
  RAMBLOCK_FOREACH_MIGRATABLE and qemu_ram_foreach_block_migratable
not the all-block versions;  poison them so that we can't accidentally
use them.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20180605162545.80778-3-dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2018-06-05 17:25:45 +01:00
parent ff0769a4ad
commit 343f632c70
3 changed files with 9 additions and 2 deletions
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4
include/exec/ramlist.h
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@ -56,8 +56,10 @@ typedef struct RAMList {
extern RAMList ram_list;
/* Should be holding either ram_list.mutex, or the RCU lock. */
#define RAMBLOCK_FOREACH(block) \
#define INTERNAL_RAMBLOCK_FOREACH(block) \
QLIST_FOREACH_RCU(block, &ram_list.blocks, next)
/* Never use the INTERNAL_ version except for defining other macros */
#define RAMBLOCK_FOREACH(block) INTERNAL_RAMBLOCK_FOREACH(block)
void qemu_mutex_lock_ramlist(void);
void qemu_mutex_unlock_ramlist(void);