tree 92824567101689de2900f33446ca5db723394e48
parent bbe45d2460da98785cb9453fb0b42d9b2e79dd99
author Jan Kara <jack@suse.cz> 1515361123 -0500
committer Theodore Ts'o <tytso@mit.edu> 1515361123 -0500

dax: pass detailed error code from dax_iomap_fault()

Ext4 needs to pass through error from its iomap handler to the page
fault handler so that it can properly detect ENOSPC and force
transaction commit and retry the fault (and block allocation). Add
argument to dax_iomap_fault() for passing such error.

Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>