new helper: iterate_supers()
authorAl Viro <viro@zeniv.linux.org.uk>
Tue, 23 Mar 2010 10:06:58 +0000 (06:06 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Fri, 21 May 2010 22:31:16 +0000 (18:31 -0400)
... and switch the simple "loop over superblocks and do something"
loops to it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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