On Thu, Apr 9, 2015 at 2:00 AM, Jarod Wilson <ja...@redhat.com> wrote:
> On Wed, Apr 08, 2015 at 07:32:24PM +0200, Sebastian Ott wrote:
>> On Wed, 8 Apr 2015, Ming Lei wrote:
>> > From: Jarod Wilson <ja...@redhat.com>
>> >
>> > With the mutex_trylock bit gone from blkdev_reread_part(), the retry logic
>> > in dasd_scan_partitions() shouldn't be necessary.
>> >
>> > CC: Christoph Hellwig <h...@infradead.org>
>> > CC: Jens Axboe <ax...@kernel.dk>
>> > CC: Tejun Heo <t...@kernel.org>
>> > CC: Alexander Viro <v...@zeniv.linux.org.uk>
>> > CC: Markus Pargmann <m...@pengutronix.de>
>> > CC: Stefan Weinhuber <w...@de.ibm.com>
>> > CC: Stefan Haberland <stefan.haberl...@de.ibm.com>
>> > CC: Sebastian Ott <seb...@linux.vnet.ibm.com>
>> > CC: Fabian Frederick <f...@skynet.be>
>> > CC: Ming Lei <ming....@canonical.com>
>> > CC: David Herrmann <dh.herrm...@gmail.com>
>> > CC: Andrew Morton <a...@linux-foundation.org>
>> > CC: Peter Zijlstra <pet...@infradead.org>
>> > CC: nbd-gene...@lists.sourceforge.net
>> > CC: linux-s...@vger.kernel.org
>> > Signed-off-by: Jarod Wilson <ja...@redhat.com>
>> > ---
>> > drivers/s390/block/dasd_genhd.c | 13 +++----------
>> > 1 file changed, 3 insertions(+), 10 deletions(-)
>> >
>> > diff --git a/drivers/s390/block/dasd_genhd.c
>> > b/drivers/s390/block/dasd_genhd.c
>> > index 2af4619..189ea2f 100644
>> > --- a/drivers/s390/block/dasd_genhd.c
>> > +++ b/drivers/s390/block/dasd_genhd.c
>> > @@ -99,9 +99,8 @@ void dasd_gendisk_free(struct dasd_block *block)
>> > int dasd_scan_partitions(struct dasd_block *block)
>> > {
>> > struct block_device *bdev;
>> > - int retry, rc;
>> > + int rc;
>> >
>> > - retry = 5;
>> > bdev = bdget_disk(block->gdp, 0);
>> > if (!bdev) {
>> > DBF_DEV_EVENT(DBF_ERR, block->base, "%s",
>> > @@ -118,14 +117,8 @@ int dasd_scan_partitions(struct dasd_block *block)
>> > }
>> >
>> > rc = blkdev_reread_part(bdev);
>> > - while (rc == -EBUSY && retry > 0) {
>> > - schedule();
>> > - rc = blkdev_reread_part(bdev);
>> > - retry--;
>> > - DBF_DEV_EVENT(DBF_ERR, block->base,
>> > - "scan partitions error, retry %d rc %d",
>> > - retry, rc);
>> > - }
>> > + DBF_DEV_EVENT(DBF_ERR, block->base,
>> > + "scan partitions error, rc %d", rc);
>>
>> Could you please change that to only write the debug message in the error
>> case. Other than that, both dasd patches look good.
>
> D'oh, absolutely. Ming, do you want me to send an updated patch 7 along in
> reply here, or do you want to handle it and/or repost the entire set?
I will handle that, and will add your guys' acked-by and tested-by too,
but need to take a while for looking if there are further comments.
Thanks,
Ming Lei
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