From: Jens Axboe <jens.axboe@oracle.com>
Date: Sat, 1 Mar 2008 18:25:20 +0000 (+0100)
Subject: Add the file sharing bits
X-Git-Tag: fio-1.20-rc1~10
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=29c1349f1840c3f60434c9da602074bc8fde4afe;hp=29c1349f1840c3f60434c9da602074bc8fde4afe

Add the file sharing bits

When you use the same filename for several jobs now, they will share
the same file structure. Enable locking through two new options:

- lockfile. If set, a semaphore is associated with the file and it is
  held from ->prep() to ->queue() has done its work.
- lockfile_batch. This controls how many IOs the job gets to do per
  semaphore acqusition.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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