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authorDave Chinner <dchinner@redhat.com>2019-08-26 12:08:38 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2019-08-26 17:43:14 -0700
commitd916275aa4ddfea69b5480e292f398d58bdb40fc (patch)
tree1281a72cc02b2c52b24dbeda7b8a1fc1b8201959 /fs/xfs/xfs_buf.h
parent0ad95687c3adb91e762d0f6ea50a6b1137300e19 (diff)
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 <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_buf.h')
-rw-r--r--fs/xfs/xfs_buf.h6
1 files changed, 6 insertions, 0 deletions
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);