block: fix partition info printouts
authorTejun Heo <tj@kernel.org>
Mon, 25 Aug 2008 10:30:12 +0000 (19:30 +0900)
committerJens Axboe <jens.axboe@oracle.com>
Thu, 9 Oct 2008 06:56:04 +0000 (08:56 +0200)
commitac65ece4eee10b03ac29ee925cadc179dc810bab
tree529f3a2c212aaa6aa5010c41aa9ec59bd6635c17
parent5a3ceb861663040f9ef0176df4aaa494bba5e352
block: fix partition info printouts

Recent block_class iteration updates 5c6f35c5..27f3025 broke partition
info printouts.

* printk_all_partitions(): Partition print out stops when it meets a
  partition hole.  Partition printing inner loop should continue
  instead of exiting on empty partition slot.

* /proc/partitions and /proc/diskstats: If all information can't be
  read in single read(), the information is truncated.  This is
  because find_start() doesn't actually update the counter containing
  the initial seek.  It runs to the end and ends up always reporting
  EOF on the second read.

This patch fixes both problems.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
block/genhd.c