linux-kernel - [PATCH 15/21] perf kvm: Make perf kvm diff support --guestmount.

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Date:	Mon,  9 Dec 2013 16:37:04 -0300
From:	Arnaldo Carvalho de Melo <acme@...radead.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Dongsheng Yang <yangds.fnst@...fujitsu.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 15/21] perf kvm: Make perf kvm diff support --guestmount.

From: Dongsheng Yang <yangds.fnst@...fujitsu.com>

In manpage of perf-kvm, --guestmount is supported by diff command, but
it does not work well.

This patch change the extend the checking in buildid-diff from
guestkallsyms or guestmodules to perf_guest. Then this checking can
cover the all cases perf kvm is used for.

Signed-off-by: Dongsheng Yang <yangds.fnst@...fujitsu.com>
Link: http://lkml.kernel.org/r/72857ed89642e0633f5e88f7e7abbc9645359e8e.1386368672.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-diff.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 3b67ea2444bd..2a85cc9a2d09 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -1000,8 +1000,7 @@ static int data_init(int argc, const char **argv)
 			data__files_cnt = argc;
 			use_default = false;
 		}
-	} else if (symbol_conf.default_guest_vmlinux_name ||
-		   symbol_conf.default_guest_kallsyms) {
+	} else if (perf_guest) {
 		defaults[0] = "perf.data.host";
 		defaults[1] = "perf.data.guest";
 	}
-- 
1.8.1.4

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