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| author | Wei Yang <richardw.yang@linux.intel.com> | 2019-06-27 10:08:20 +0800 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2019-08-14 17:33:14 +0100 |
| commit | 0abfff9ea7c56c2f6ad3cee10120915ec723cb32 (patch) | |
| tree | 050d0ac585d6f8ed2197e9b2e7db02c5615a03f3 /migration | |
| parent | 640dfb14db919462dedc1b4fa0feaaf99a0bff42 (diff) | |
| download | qemu-0abfff9ea7c56c2f6ad3cee10120915ec723cb32.zip | |
migration/postcopy: the valid condition is one less then end
If one equals end, it means we have gone through the whole bitmap.
Use a more restrict check to skip a unnecessary condition.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190627020822.15485-2-richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/ram.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/migration/ram.c b/migration/ram.c index 889148dd84..68bc11c9e7 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -2865,7 +2865,7 @@ static int postcopy_send_discard_bm_ram(MigrationState *ms, for (current = 0; current < end; ) { unsigned long one = find_next_bit(unsentmap, end, current); - if (one <= end) { + if (one < end) { unsigned long zero = find_next_zero_bit(unsentmap, end, one + 1); unsigned long discard_length; |