diff options
| author | Gary R Hook <gary.hook@nimboxx.com> | 2014-11-25 17:30:02 -0600 |
|---|---|---|
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | 2015-01-14 17:08:42 -0600 |
| commit | 21640bf6e08e4d69bab1bd1ea0bed562d1fc726c (patch) | |
| tree | a260f93153e25964f99beff774175cd4efe8aa17 /block-migration.c | |
| parent | 6bbb939a8061d189bf29aa2b3ef1a5717380f41a (diff) | |
block migration: fix return value
Modify block_save_iterate() to return positive/zero/negative
(success/not done/failure) return status. The computation of
the blocks transferred (an int64_t) exceeds the size of an
int return value.
Signed-off-by: Gary R Hook <gary.hook@nimboxx.com>
Reviewed-by: ChenLiang <chenliang88@huawei.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1416958202-15913-1-git-send-email-gary.hook@nimboxx.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
(cherry picked from commit ebd9fbd7e102c533143c2c8372312b75c2b2678a)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'block-migration.c')
| -rw-r--r-- | block-migration.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/block-migration.c b/block-migration.c index 73cdd07e8c..2bb98d826e 100644 --- a/block-migration.c +++ b/block-migration.c @@ -652,6 +652,7 @@ static int block_save_iterate(QEMUFile *f, void *opaque) { int ret; int64_t last_ftell = qemu_ftell(f); + int64_t delta_ftell; DPRINTF("Enter save live iterate submitted %d transferred %d\n", block_mig_state.submitted, block_mig_state.transferred); @@ -701,7 +702,14 @@ static int block_save_iterate(QEMUFile *f, void *opaque) } qemu_put_be64(f, BLK_MIG_FLAG_EOS); - return qemu_ftell(f) - last_ftell; + delta_ftell = qemu_ftell(f) - last_ftell; + if (delta_ftell > 0) { + return 1; + } else if (delta_ftell < 0) { + return -1; + } else { + return 0; + } } /* Called with iothread lock taken. */ |