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authorDavid Sterba <dsterba@suse.cz>2015-01-16 19:21:12 +0300
committerDavid Sterba <dsterba@suse.cz>2015-03-03 19:23:57 +0300
commitf8c269d7223f6b63cc5936eb191bc3b170d24342 (patch)
tree2e82cc23da9f436bbb6fde058b3321619f990db2 /fs/btrfs/dev-replace.c
parent351810c1d2aafa288af61844d877941d516fb031 (diff)
downloadlinux-f8c269d7223f6b63cc5936eb191bc3b170d24342.tar.xz
btrfs: cleanup 64bit/32bit divs, compile time constants
Switch to div_u64 if the divisor is a numeric constant or sum of sizeof()s. We can remove a few instances of do_div that has the hidden semtantics of changing the 1st argument. Small power-of-two divisors are converted to bitshifts, large values are kept intact for clarity. Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'fs/btrfs/dev-replace.c')
-rw-r--r--fs/btrfs/dev-replace.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 5ec03d999c37..0573848c7333 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -670,8 +670,8 @@ void btrfs_dev_replace_status(struct btrfs_fs_info *fs_info,
case BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED:
case BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED:
srcdev = dev_replace->srcdev;
- args->status.progress_1000 = div64_u64(dev_replace->cursor_left,
- div64_u64(btrfs_device_get_total_bytes(srcdev), 1000));
+ args->status.progress_1000 = div_u64(dev_replace->cursor_left,
+ div_u64(btrfs_device_get_total_bytes(srcdev), 1000));
break;
}
btrfs_dev_replace_unlock(dev_replace);
@@ -806,7 +806,7 @@ static int btrfs_dev_replace_kthread(void *data)
btrfs_dev_replace_status(fs_info, status_args);
progress = status_args->status.progress_1000;
kfree(status_args);
- do_div(progress, 10);
+ progress = div_u64(progress, 10);
printk_in_rcu(KERN_INFO
"BTRFS: continuing dev_replace from %s (devid %llu) to %s @%u%%\n",
dev_replace->srcdev->missing ? "<missing disk>" :