summaryrefslogtreecommitdiffstats
path: root/drivers/dax
diff options
context:
space:
mode:
authorDan Williams <dan.j.williams@intel.com>2017-06-27 22:06:22 +0200
committerDan Williams <dan.j.williams@intel.com>2017-06-28 01:44:27 +0200
commit5d61e43b3975c0582003329d9de9d5e85abf5d33 (patch)
tree259546b1a8fd2b8cf50d40698edfaeebdb241e00 /drivers/dax
parentlibnvdimm, nfit: enable support for volatile ranges (diff)
downloadlinux-5d61e43b3975c0582003329d9de9d5e85abf5d33.tar.xz
linux-5d61e43b3975c0582003329d9de9d5e85abf5d33.zip
dax: remove default copy_from_iter fallback
Require all dax-drivers to register a ->copy_from_iter() operation so that it is clear which dax_operations are optional and which must be implemented for filesystem-dax to operate. Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com> Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dax')
-rw-r--r--drivers/dax/super.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index b7729e4d351a..9e0160b950d7 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -179,8 +179,6 @@ size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
if (!dax_alive(dax_dev))
return 0;
- if (!dax_dev->ops->copy_from_iter)
- return copy_from_iter(addr, bytes, i);
return dax_dev->ops->copy_from_iter(dax_dev, pgoff, addr, bytes, i);
}
EXPORT_SYMBOL_GPL(dax_copy_from_iter);