return xfs_is_inode32(mp) ? maxagi : agcount;
}
+static bool
+xfs_buftarg_is_dax(
+ struct super_block *sb,
+ struct xfs_buftarg *bt)
+{
+ return dax_supported(bt->bt_daxdev, bt->bt_bdev, sb->s_blocksize, 0,
+ bdev_nr_sectors(bt->bt_bdev));
+}
+
STATIC int
xfs_blkdev_get(
xfs_mount_t *mp,
xfs_warn(mp,
"DAX enabled. Warning: EXPERIMENTAL, use at your own risk");
- datadev_is_dax = bdev_dax_supported(mp->m_ddev_targp->bt_bdev,
- sb->s_blocksize);
+ datadev_is_dax = xfs_buftarg_is_dax(sb, mp->m_ddev_targp);
if (mp->m_rtdev_targp)
- rtdev_is_dax = bdev_dax_supported(
- mp->m_rtdev_targp->bt_bdev, sb->s_blocksize);
+ rtdev_is_dax = xfs_buftarg_is_dax(sb,
+ mp->m_rtdev_targp);
if (!rtdev_is_dax && !datadev_is_dax) {
xfs_alert(mp,
"DAX unsupported by block device. Turning off DAX.");