From: Li Zefan <lizf@cn.fujitsu.com>
Date: Wed, 8 Apr 2009 07:06:54 +0000 (+0800)
Subject: btrfs: use memdup_user()
X-Git-Tag: v2.6.30-rc3~35^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dae7b665cf6d6e6e733f1c9c16cf55547dd37e33;p=pandora-kernel.git

btrfs: use memdup_user()

Remove open-coded memdup_user().

Note this changes some GFP_NOFS to GFP_KERNEL, since copy_from_user() may
cause pagefault, it's pointless to pass GFP_NOFS to kmalloc().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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