From: Jan Kara Date: Fri, 10 Feb 2012 10:03:00 +0000 (+0100) Subject: vfs: Provide function to get superblock and wait for it to thaw X-Git-Tag: v3.3-rc5~30^2~3 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b6dc836a195e077e76977b6c020a73de411b46d;p=pandora-kernel.git vfs: Provide function to get superblock and wait for it to thaw In quota code we need to find a superblock corresponding to a device and wait for superblock to be unfrozen. However this waiting has to happen without s_umount semaphore because that is required for superblock to thaw. So provide a function in VFS for this to keep dances with s_umount where they belong. [AV: implementation switched to saner variant] Signed-off-by: Jan Kara Signed-off-by: Al Viro --- Reading git-diff-tree failed