tree dec5680cef5115900d2292dd100361a5446db532
parent bbab37ddc20bae4709bca8745c128c4f46fe63c5
author Matthew Wilcox <matthew.r.wilcox@intel.com> 1435934443 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1436039817 -0400

dax: bdev_direct_access() may sleep

The brd driver is the only in-tree driver that may sleep currently.
After some discussion on linux-fsdevel, we decided that any driver
may choose to sleep in its ->direct_access method.  To ensure that all
callers of bdev_direct_access() are prepared for this, add a call
to might_sleep().

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>