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authorYufen Yu <yuyufen@huawei.com>2020-07-22 23:29:05 -0400
committerSong Liu <songliubraving@fb.com>2020-07-22 22:49:46 -0700
commit83c3e5e17b5e3057ac304383a46e3c485d00ffed (patch)
treeee6142ddd72d3cc143db9f8f594d13b2d7e66012 /drivers
parentef67744e7a4c82e246cd9831208d07249c519d22 (diff)
downloadlinux-83c3e5e17b5e3057ac304383a46e3c485d00ffed.tar.bz2
md/raid5: use do_div() for 64 bit divisions in raid5_sync_request
We get compilation error on 32-bit architectures (e.g. m68k), as: ERROR: modpost: "__udivdi3" [drivers/md/raid456.ko] undefined! Since 'sync_blocks' is defined as u64, use do_div() to fix this error. Fixes: c911c46c017c ("md/raid456: convert macro STRIPE_* to RAID5_STRIPE_*") Signed-off-by: Yufen Yu <yuyufen@huawei.com> Signed-off-by: Song Liu <songliubraving@fb.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/md/raid5.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 40961dd1777b..a6ff6e1e039b 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -6104,7 +6104,7 @@ static inline sector_t raid5_sync_request(struct mddev *mddev, sector_t sector_n
!md_bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 1) &&
sync_blocks >= RAID5_STRIPE_SECTORS(conf)) {
/* we can skip this block, and probably more */
- sync_blocks /= RAID5_STRIPE_SECTORS(conf);
+ do_div(sync_blocks, RAID5_STRIPE_SECTORS(conf));
*skipped = 1;
/* keep things rounded to whole stripes */
return sync_blocks * RAID5_STRIPE_SECTORS(conf);