From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Mon, 25 May 2015 14:49:11 +0000 (-0300)
Subject: perf tools: Import rb_erase_init from block/ in the kernel sources
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~181^2~20^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9402e23f90c5a672db7170e4c0f1fc80ca8c009a;p=pandora-kernel.git

perf tools: Import rb_erase_init from block/ in the kernel sources

I was assuming rb_erase() was setting things up like list_del_init, but
the fact that thread__delete() was being sucessfull is because the last
thing before deleting is to remove the thread from the
machine->dead_threads list, using list_del_init(), that has the same
effect as using rb_erase_init()...

Introduce this function so that we can use it when removing objects from
rb_trees.

Then we will be able to BUG_ON(still on a list) in destructors.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-55b16mbtndjyd7zzg8nmnamx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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