From: Ben Myers <bpm@sgi.com>
Date: Fri, 25 May 2012 20:45:36 +0000 (-0500)
Subject: xfs: shutdown xfs_sync_worker before the log
X-Git-Tag: v3.5-rc4~7^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8866fc6fa55e31b2bce931b7963ff16641b39dc7;p=pandora-kernel.git

xfs: shutdown xfs_sync_worker before the log

Revert commit 1307bbd, which uses the s_umount semaphore to provide
exclusion between xfs_sync_worker and unmount, in favor of shutting down
the sync worker before freeing the log in xfs_log_unmount.  This is a
cleaner way of resolving the race between xfs_sync_worker and unmount
than using s_umount.

Signed-off-by: Ben Myers <bpm@sgi.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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