GFS2: Issue discards in 512b sectors
authorBob Peterson <rpeterso@redhat.com>
Fri, 22 Mar 2013 14:07:24 +0000 (10:07 -0400)
committerSteven Whitehouse <swhiteho@redhat.com>
Fri, 5 Apr 2013 16:55:13 +0000 (17:55 +0100)
commitb2c87cae0edb1a99f7dd2751d5beb2cb97926514
tree1b10a4c350a6a64ba581ccef10e7cb48441bf7c7
parentc2952d202f710d326ac36a8ea6bd216b20615ec8
GFS2: Issue discards in 512b sectors

This patch changes GFS2's discard issuing code so that it calls
function sb_issue_discard rather than blkdev_issue_discard. The
code was calling blkdev_issue_discard and specifying the correct
sector offset and sector size, but blkdev_issue_discard expects
these values to be in terms of 512 byte sectors, even if the native
sector size for the device is different. Calling sb_issue_discard
with the BLOCK size instead ensures the correct block-to-512b-sector
translation. I verified that "minlen" is specified in blocks, so
comparing it to a number of blocks is correct.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
fs/gfs2/rgrp.c