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[6/8] migration: add migrate_unix_page_flipping()

Message ID 1380119568-5530-7-git-send-email-lilei@linux.vnet.ibm.com
State New
Headers show

Commit Message

Lei Li Sept. 25, 2013, 2:32 p.m. UTC 
Add migrate_unix_page_flipping() to check if MIGRATION_CAPABILITY_UNIX_PAGE_FLIPPING
is enabled.
 
Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com>
---
 include/migration/migration.h |    3 +++
 migration.c                   |    9 +++++++++
 2 files changed, 12 insertions(+), 0 deletions(-)
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Patch

diff --git a/include/migration/migration.h b/include/migration/migration.h
index 140e6b4..7e5d01a 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -131,10 +131,13 @@  void migrate_add_blocker(Error *reason);
 void migrate_del_blocker(Error *reason);
 
 bool migrate_rdma_pin_all(void);
+
 bool migrate_zero_blocks(void);
 
 bool migrate_auto_converge(void);
 
+bool migrate_unix_page_flipping(void);
+
 int xbzrle_encode_buffer(uint8_t *old_buf, uint8_t *new_buf, int slen,
                          uint8_t *dst, int dlen);
 int xbzrle_decode_buffer(uint8_t *src, int slen, uint8_t *dst, int dlen);
diff --git a/migration.c b/migration.c
index 200d404..825a455 100644
--- a/migration.c
+++ b/migration.c
@@ -540,6 +540,15 @@  int64_t migrate_xbzrle_cache_size(void)
     return s->xbzrle_cache_size;
 }
 
+bool migrate_unix_page_flipping(void)
+{
+    MigrationState *s;
+
+    s = migrate_get_current();
+
+    return s->enabled_capabilities[MIGRATION_CAPABILITY_UNIX_PAGE_FLIPPING];
+}
+
 /* migration thread support */
 
 static void *migration_thread(void *opaque)