Commit 3d8da6781760 ("Btrfs: fix divide error upon chunk's stripe_len")
changed stripe_len in struct map_lookup to u64, but didn't update
stripe_len in struct scrub_parity.

This updates the type and switches to div64_u64_rem to match u64 divisor.

Cc: David Sterba <dste...@suse.cz>
Signed-off-by: Liu Bo <bo.li....@oracle.com>
---
 fs/btrfs/scrub.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index b9525ca..fab351c 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -140,7 +140,7 @@ struct scrub_parity {
 
        int                     nsectors;
 
-       int                     stripe_len;
+       u64                     stripe_len;
 
        atomic_t                refs;
 
@@ -2449,7 +2449,7 @@ static inline void __scrub_mark_bitmap(struct 
scrub_parity *sparity,
                                       unsigned long *bitmap,
                                       u64 start, u64 len)
 {
-       u32 offset;
+       u64 offset;
        int nsectors;
        int sectorsize = sparity->sctx->fs_info->sectorsize;
 
@@ -2461,7 +2461,7 @@ static inline void __scrub_mark_bitmap(struct 
scrub_parity *sparity,
        }
 
        start -= sparity->logic_start;
-       start = div_u64_rem(start, sparity->stripe_len, &offset);
+       start = div64_u64_rem(start, sparity->stripe_len, &offset);
        offset /= sectorsize;
        nsectors = (int)len / sectorsize;
 
-- 
2.5.5

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