diff options
| -rw-r--r-- | block/mirror.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/block/mirror.c b/block/mirror.c index 60eefbd98b..a41ef25eee 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -176,12 +176,12 @@ static void mirror_read_complete(void *opaque, int ret) aio_context_release(blk_get_aio_context(s->common.blk)); } -static inline void mirror_clip_sectors(MirrorBlockJob *s, - int64_t sector_num, - int *nb_sectors) +static inline int mirror_clip_sectors(MirrorBlockJob *s, + int64_t sector_num, + int nb_sectors) { - *nb_sectors = MIN(*nb_sectors, - s->bdev_length / BDRV_SECTOR_SIZE - sector_num); + return MIN(nb_sectors, + s->bdev_length / BDRV_SECTOR_SIZE - sector_num); } /* Round sector_num and/or nb_sectors to target cluster if COW is needed, and @@ -216,7 +216,8 @@ static int mirror_cow_align(MirrorBlockJob *s, } /* Clipping may result in align_nb_sectors unaligned to chunk boundary, but * that doesn't matter because it's already the end of source image. */ - mirror_clip_sectors(s, align_sector_num, &align_nb_sectors); + align_nb_sectors = mirror_clip_sectors(s, align_sector_num, + align_nb_sectors); ret = align_sector_num + align_nb_sectors - (*sector_num + *nb_sectors); *sector_num = align_sector_num; @@ -445,7 +446,7 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s) return 0; } - mirror_clip_sectors(s, sector_num, &io_sectors); + io_sectors = mirror_clip_sectors(s, sector_num, io_sectors); switch (mirror_method) { case MIRROR_METHOD_COPY: io_sectors = mirror_do_read(s, sector_num, io_sectors); |