From patchwork Tue Jan 26 13:46:45 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paolo Bonzini X-Patchwork-Id: 8122681 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id CA2F89F6DA for ; Tue, 26 Jan 2016 13:57:32 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2D8D02025B for ; Tue, 26 Jan 2016 13:57:32 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 72A8620256 for ; Tue, 26 Jan 2016 13:57:31 +0000 (UTC) Received: from localhost ([::1]:44001 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aO47e-0003tq-T1 for patchwork-qemu-devel@patchwork.kernel.org; Tue, 26 Jan 2016 08:57:30 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34933) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aO3yF-00086r-NO for qemu-devel@nongnu.org; Tue, 26 Jan 2016 08:47:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aO3yE-00041p-K2 for qemu-devel@nongnu.org; Tue, 26 Jan 2016 08:47:47 -0500 Received: from mx1.redhat.com ([209.132.183.28]:60861) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aO3yE-00041d-8o for qemu-devel@nongnu.org; Tue, 26 Jan 2016 08:47:46 -0500 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id D6FD9C60E3; Tue, 26 Jan 2016 13:47:45 +0000 (UTC) Received: from 640k.localdomain.com (ovpn-112-67.ams2.redhat.com [10.36.112.67]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u0QDlNqO028272; Tue, 26 Jan 2016 08:47:44 -0500 From: Paolo Bonzini To: qemu-devel@nongnu.org Date: Tue, 26 Jan 2016 14:46:45 +0100 Message-Id: <1453816041-36362-14-git-send-email-pbonzini@redhat.com> In-Reply-To: <1453816041-36362-1-git-send-email-pbonzini@redhat.com> References: <1453816041-36362-1-git-send-email-pbonzini@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: Janosch Frank Subject: [Qemu-devel] [PULL 13/49] scripts/kvm/kvm_stat: Cleanup of path variables X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Janosch Frank Paths to debugfs and trace dirs are now specified globally to remove redundancies in the code. Reviewed-by: Jason J. Herne Signed-off-by: Janosch Frank Message-Id: <1452525484-32309-8-git-send-email-frankja@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini --- scripts/kvm/kvm_stat | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/scripts/kvm/kvm_stat b/scripts/kvm/kvm_stat index d53945e..5ca09f4 100755 --- a/scripts/kvm/kvm_stat +++ b/scripts/kvm/kvm_stat @@ -25,15 +25,14 @@ from collections import defaultdict class DebugfsProvider(object): def __init__(self): - self.base = '/sys/kernel/debug/kvm' - self._fields = walkdir(self.base)[2] + self._fields = walkdir(PATH_DEBUGFS_KVM)[2] def fields(self): return self._fields def select(self, fields): self._fields = fields def read(self): def val(key): - return int(file(self.base + '/' + key).read()) + return int(file(PATH_DEBUGFS_KVM + '/' + key).read()) return dict([(key, val(key)) for key in self._fields]) VMX_EXIT_REASONS = { @@ -328,7 +327,8 @@ def _perf_event_open(attr, pid, cpu, group_fd, flags): PERF_TYPE_TRACEPOINT = 2 PERF_FORMAT_GROUP = 1 << 3 -sys_tracing = '/sys/kernel/debug/tracing' +PATH_DEBUGFS_TRACING = '/sys/kernel/debug/tracing' +PATH_DEBUGFS_KVM = '/sys/kernel/debug/kvm' class Group(object): def __init__(self, cpu): @@ -353,7 +353,7 @@ class Event(object): attr = perf_event_attr() attr.type = PERF_TYPE_TRACEPOINT attr.size = ctypes.sizeof(attr) - id_path = os.path.join(sys_tracing, 'events', event_set, + id_path = os.path.join(PATH_DEBUGFS_TRACING, 'events', event_set, tracepoint, 'id') id = int(file(id_path).read()) attr.config = id @@ -378,7 +378,7 @@ class Event(object): class TracepointProvider(object): def __init__(self): - path = os.path.join(sys_tracing, 'events', 'kvm') + path = os.path.join(PATH_DEBUGFS_TRACING, 'events', 'kvm') fields = walkdir(path)[1] extra = [] for f in fields: @@ -476,7 +476,7 @@ class Stats: if not os.access('/sys/kernel/debug', os.F_OK): print 'Please enable CONFIG_DEBUG_FS in your kernel' sys.exit(1) -if not os.access('/sys/kernel/debug/kvm', os.F_OK): +if not os.access(PATH_DEBUGFS_KVM, os.F_OK): print "Please mount debugfs ('mount -t debugfs debugfs /sys/kernel/debug')" print "and ensure the kvm modules are loaded" sys.exit(1)