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(parent: 0de9db3) | patch
s390: remove superfluous tpi from wait_cons_dev
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 9 May 2012 14:27:36 +0000 (16:27 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 16 May 2012 12:42:38 +0000 (14:42 +0200)
commitb603d258a43b4e7339660bdd3b5c25eacd603e54
treed6bf2fb403540be8e48e22dc85fb5587d7567d9etree | snapshot (tar.gz zip)
parent0de9db37f0dff3bda21b3650ba60a21d3fe70df2commit | diff
s390: remove superfluous tpi from wait_cons_dev

wait_cons_dev waits for a particular subchannel to complete an I/O.
It is not necessary to use tpi to get the subchannel id as it is
already known. This avoids changes to the interrupt subclass mask
and allows to remove the lock & unlock of the subchannel lock.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/cio/cio.c diff | blob | blame | history