From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752654AbbJWPEE (ORCPT ); Fri, 23 Oct 2015 11:04:04 -0400 Received: from m50-134.163.com ([123.125.50.134]:39093 "EHLO m50-134.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752015AbbJWPEC (ORCPT ); Fri, 23 Oct 2015 11:04:02 -0400 From: Geliang Tang To: Anton Vorontsov , Colin Cross , Kees Cook , Tony Luck Cc: Geliang Tang , linux-kernel@vger.kernel.org Subject: [PATCH 1/2] pstore: check PSTORE_FLAGS_FRAGILE in pstore_unregister Date: Fri, 23 Oct 2015 22:56:22 +0800 Message-Id: X-Mailer: git-send-email 2.5.0 X-CM-TRANSID: DtGowEAp6UecSipWu5A_AA--.1746S3 X-Coremail-Antispam: 1Uf129KBjvdXoW7Gr18WF1UGF4furyfGr4kWFg_yoWfZFg_t3 yIqFyxXrs3Cws8Kr15Cr13u3s7Zw4kGrWfXw1UtFs0kw1xJw4kK3sFva4DZr1UJr4xWFZx tay2kry3uw13GjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUjsXo7UUUUU== X-Originating-IP: [116.77.138.30] X-CM-SenderInfo: 5jhoxtpqjwt0rj6rljoofrz/1tbiox+cmVUL2O42cgAAsV Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When PSTORE_FLAGS_FRAGILE flag is set, only kmsg is registered in pstore_register. So, under these circumstances, only kmsg needs to be unregistered in pstore_unregister. Signed-off-by: Geliang Tang --- fs/pstore/platform.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 0aab920..7ad2038 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -496,9 +496,12 @@ EXPORT_SYMBOL_GPL(pstore_register); void pstore_unregister(struct pstore_info *psi) { - pstore_unregister_pmsg(); - pstore_unregister_ftrace(); - pstore_unregister_console(); + if ((psi->flags & PSTORE_FLAGS_FRAGILE) == 0) { + pstore_unregister_pmsg(); + pstore_unregister_ftrace(); + pstore_unregister_console(); + } + pstore_unregister_kmsg(); free_buf_for_compression(); -- 2.5.0