From a9fdbf8c6070d49c482e209df7ee93d9ec41ea27 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Fri, 1 Oct 2010 05:41:50 +0200
Subject: [PATCH] hfsplus: use alloc_mutex in hfsplus_sync_fs

Use alloc_mutex to protect hfsplus_sync_fs against itself and concurrent
allocations, which allows to get rid of lock_super in hfsplus.

Note that most fields in the superblock still aren't protected against
concurrent allocations, that will follow later.

Signed-off-by: Christoph Hellwig <hch@tuxera.com>
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