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[PATCH] radix_tag_get(): differentiate between no present node and tag unset cases
authorMarcelo Tosatti <marcelo.tosatti@cyclades.com>
Tue, 6 Sep 2005 22:16:48 +0000 (15:16 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Wed, 7 Sep 2005 23:57:21 +0000 (16:57 -0700)
Simple patch to radix_tree_tag_get() to return different values for non
present node and tag unset.

The function is not used by any in-kernel callers (yet), but this
information is definitely useful.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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