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authorJan Kara <jack@suse.cz>2012-02-10 11:03:00 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2012-02-13 20:45:38 -0500
commit6b6dc836a195e077e76977b6c020a73de411b46d (patch)
tree59920a3aab6db4997f6b7a95c753219bdc12bd64 /fs/quota
parent074b85175a43a23fdbde60f55feea636e0bf0f85 (diff)
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 <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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