tree d2363a3489a98a3325114a253bef4dc13be3885e
parent 671756162cfb0b3ccbb6a0047baa3010885561a2
author Christian Borntraeger <borntraeger@de.ibm.com> 1196780943 +0100
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1196780997 +0100

[S390] dcssblk: prevent early access without own make_request function

When loading a dcss segment with the dcssblk driver, sometimes the
following kind of message appears:

bio too big device dcssblk0 (8 > 0)
Buffer I/O error on device dcssblk0, logical block 172016
..

The fix is to move the disk registration after setting the
make_request function, to avoid calls into generic_make_request
for dcssblock without having the make_request function set up
properly.

Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>