tree 06fc3e6639a492eb14c326bd8697c1ba9907c9da
parent c2661b806092d8ea2dccb7b02b65776555e0ee47
author Christoph Hellwig <hch@lst.de> 1410044885 -0700
committer Jens Axboe <axboe@fb.com> 1413921774 -0600

block: remove artifical max_hw_sectors cap

Set max_sectors to the value the drivers provides as hardware limit by
default.  Linux had proper I/O throttling for a long time and doesn't
rely on a artifically small maximum I/O size anymore.  By not limiting
the I/O size by default we remove an annoying tuning step required for
most Linux installation.

Note that both the user, and if absolutely required the driver can still
impose a limit for FS requests below max_hw_sectors_kb.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>