From: Steven Rostedt <srostedt@redhat.com>
Date: Tue, 26 Jan 2010 21:14:08 +0000 (-0500)
Subject: ring-buffer: Check for end of page in iterator
X-Git-Tag: v2.6.33-rc7~52^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3c05d7482777f15e71bb4cb1ba78dee2800dfec6;p=pandora-kernel.git

ring-buffer: Check for end of page in iterator

If the iterator comes to an empty page for some reason, or if
the page is emptied by a consuming read. The iterator code currently
does not check if the iterator is pass the contents, and may
return a false entry.

This patch adds a check to the ring buffer iterator to test if the
current page has been completely read and sets the iterator to the
next page if necessary.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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