Btrfs: switch to div64_u64 if with a u64 divisor
This is fixing code pieces where we use div_u64 when passing a u64 divisor.
Cc: David Sterba <dsterba@suse.cz>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 3b3be8e..2a4eada 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4816,7 +4816,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
stripe_size = div_u64(stripe_size, dev_stripes);
/* align to BTRFS_STRIPE_LEN */
- stripe_size = div_u64(stripe_size, raid_stripe_len);
+ stripe_size = div64_u64(stripe_size, raid_stripe_len);
stripe_size *= raid_stripe_len;
map = kmalloc(map_lookup_size(num_stripes), GFP_NOFS);
@@ -5361,7 +5361,7 @@ static int __btrfs_map_block_for_discard(struct btrfs_fs_info *fs_info,
stripe_offset = offset - stripe_nr * stripe_len;
stripe_nr_end = round_up(offset + length, map->stripe_len);
- stripe_nr_end = div_u64(stripe_nr_end, map->stripe_len);
+ stripe_nr_end = div64_u64(stripe_nr_end, map->stripe_len);
stripe_cnt = stripe_nr_end - stripe_nr;
stripe_end_offset = stripe_nr_end * map->stripe_len -
(offset + length);
@@ -5801,7 +5801,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info,
(op == BTRFS_MAP_WRITE || op == BTRFS_MAP_GET_READ_MIRRORS ||
mirror_num > 1)) {
/* push stripe_nr back to the start of the full stripe */
- stripe_nr = div_u64(raid56_full_stripe_start,
+ stripe_nr = div64_u64(raid56_full_stripe_start,
stripe_len * nr_data_stripes(map));
/* RAID[56] write or recovery. Return all stripes */
@@ -5998,7 +5998,7 @@ int btrfs_rmap_block(struct btrfs_fs_info *fs_info,
continue;
stripe_nr = physical - map->stripes[i].physical;
- stripe_nr = div_u64(stripe_nr, map->stripe_len);
+ stripe_nr = div64_u64(stripe_nr, map->stripe_len);
if (map->type & BTRFS_BLOCK_GROUP_RAID10) {
stripe_nr = stripe_nr * map->num_stripes + i;
