Support providing info on atomic write unit min and max.
Darrick Wong originally authored this change.
Signed-off-by: John Garry <john.g.garry@xxxxxxxxxx>
---
fs/xfs/xfs_iops.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 24718adb3c16..e542077704aa 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -614,6 +614,16 @@ xfs_vn_getattr(
stat->dio_mem_align = bdev_dma_alignment(bdev) + 1;
stat->dio_offset_align = bdev_logical_block_size(bdev);
}
+ if (request_mask & STATX_WRITE_ATOMIC) {
+ struct xfs_buftarg *target = xfs_inode_buftarg(ip);
+ struct block_device *bdev = target->bt_bdev;
+
+ stat->atomic_write_unit_min = queue_atomic_write_unit_min(bdev->bd_queue);
+ stat->atomic_write_unit_max = queue_atomic_write_unit_max(bdev->bd_queue);
+ stat->attributes |= STATX_ATTR_WRITE_ATOMIC;
+ stat->attributes_mask |= STATX_ATTR_WRITE_ATOMIC;
+ stat->result_mask |= STATX_WRITE_ATOMIC;
+ }
fallthrough;
default:
stat->blksize = xfs_stat_blksize(ip);
--
2.31.1
