From: Dave Chinner <dchinner@xxxxxxxxxx>
Needed to feed into the allocation routine to guarantee the memory
buffers we add to bios are correctly aligned to the underlying
device.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
fs/xfs/xfs_buf.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h
index c6e57a3f409e..f6ce17d8d848 100644
--- a/fs/xfs/xfs_buf.h
+++ b/fs/xfs/xfs_buf.h
@@ -350,6 +350,12 @@ extern int xfs_setsize_buftarg(xfs_buftarg_t *, unsigned int);
#define xfs_getsize_buftarg(buftarg) block_size((buftarg)->bt_bdev)
#define xfs_readonly_buftarg(buftarg) bdev_read_only((buftarg)->bt_bdev)
+static inline int
+xfs_buftarg_dma_alignment(struct xfs_buftarg *bt)
+{
+ return queue_dma_alignment(bt->bt_bdev->bd_disk->queue);
+}
+
int xfs_buf_reverify(struct xfs_buf *bp, const struct xfs_buf_ops *ops);
bool xfs_verify_magic(struct xfs_buf *bp, __be32 dmagic);
bool xfs_verify_magic16(struct xfs_buf *bp, __be16 dmagic);
--
2.23.0.rc1
