tree cb13f4d0d9040120b5ef6a90c8b174a0619756d0
parent 201b6264ff3865090747f58f48e087c3a35e0dbc
author Marcelo Tosatti <marcelo.tosatti@cyclades.com> 1126045008 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1126137441 -0700

[PATCH] radix_tag_get(): differentiate between no present node and tag unset cases

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>