From d916275aa4ddfea69b5480e292f398d58bdb40fc Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 26 Aug 2019 12:08:38 -0700 Subject: [PATCH] xfs: get allocation alignment from the buftarg 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 Reviewed-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- 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);