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| author | Dave Chinner <dchinner@redhat.com> | 2019-08-26 21:08:38 +0200 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-08-27 02:43:14 +0200 |
| commit | d916275aa4ddfea69b5480e292f398d58bdb40fc (patch) | |
| tree | 1281a72cc02b2c52b24dbeda7b8a1fc1b8201959 /fs/xfs/xfs_buf.h | |
| parent | xfs: add kmem allocation trace points (diff) | |
| download | linux-d916275aa4ddfea69b5480e292f398d58bdb40fc.tar.xz linux-d916275aa4ddfea69b5480e292f398d58bdb40fc.zip | |
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.h | 6 |
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); |