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 /include/linux/dax.h | |
| 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 'include/linux/dax.h')
| -rw-r--r-- | include/linux/dax.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/dax.h b/include/linux/dax.h index b79036743e7f..f6f353382cc9 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -117,7 +117,8 @@ static inline void fs_put_dax(struct dax_device *dax_dev) put_dax(dax_dev); } -struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev); +struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev, + u64 *start_off); int dax_writeback_mapping_range(struct address_space *mapping, struct dax_device *dax_dev, struct writeback_control *wbc); @@ -138,7 +139,8 @@ static inline void fs_put_dax(struct dax_device *dax_dev) { } -static inline struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev) +static inline struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev, + u64 *start_off) { return NULL; } |