From: Hugh Dickins <hughd@google.com>
Date: Tue, 1 Nov 2011 00:07:02 +0000 (-0700)
Subject: radix_tree: clean away saw_unset_tag leftovers
X-Git-Tag: v3.2-rc1~108^2~116
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3fa36acbced23c563345de3179dfe1775f15be5e;p=pandora-kernel.git

radix_tree: clean away saw_unset_tag leftovers

radix_tree_tag_get()'s BUG (when it sees a tag after saw_unset_tag) was
unsafe and removed in 2.6.34, but the pointless saw_unset_tag left behind.

Remove it now, and return 0 as soon as we see unset tag - we already rely
upon the root tag to be correct, returning 0 immediately if it's not set.

Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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