diff options
| author | Christoph Hellwig <hch@lst.de> | 2021-11-29 11:21:59 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2021-12-04 08:58:54 -0800 |
| commit | cd913c76f489def1a388e3a5b10df94948ede3f5 (patch) | |
| tree | d144a96b23dd0ea4064702c2f5e06d4fe6258680 /fs/xfs | |
| parent | 952da06375c8f3aa58474fff718d9ae8442531b9 (diff) | |
dax: return the partition offset from fs_dax_get_by_bdev
Prepare for the removal of the block_device from the DAX I/O path by
returning the partition offset from fs_dax_get_by_bdev so that the file
systems have it at hand for use during I/O.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Link: https://lore.kernel.org/r/20211129102203.2243509-26-hch@lst.de
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_buf.c | 2 | ||||
| -rw-r--r-- | fs/xfs/xfs_buf.h | 1 |
2 files changed, 2 insertions, 1 deletions
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 4d4553ffa705..bbb0fbd34e64 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1945,7 +1945,7 @@ xfs_alloc_buftarg( btp->bt_mount = mp; btp->bt_dev = bdev->bd_dev; btp->bt_bdev = bdev; - btp->bt_daxdev = fs_dax_get_by_bdev(bdev); + btp->bt_daxdev = fs_dax_get_by_bdev(bdev, &btp->bt_dax_part_off); /* * Buffer IO error rate limiting. Limit it to no more than 10 messages diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index bd7f709f0d23..edcb6254fa6a 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -89,6 +89,7 @@ typedef struct xfs_buftarg { dev_t bt_dev; struct block_device *bt_bdev; struct dax_device *bt_daxdev; + u64 bt_dax_part_off; struct xfs_mount *bt_mount; unsigned int bt_meta_sectorsize; size_t bt_meta_sectormask; |