From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EBB69D0BB56 for ; Fri, 25 Oct 2024 15:35:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=T45DqLTPeioVPwdmA6T2qtJMW2hVzHwO63kls8tMzOY=; b=DhJohx58hh8TUT 9+5GHgeKXSvulVQg4Em0duWUjRul9Q29haZV2Jk3s30Dbqgv79ShVvh9RAv2FyVyMznl6x3nQ6BWB nIKOabwiUfHWLn9Lm1SA+mLDZdKlGGpnwVjjr0Hn3jzyEjyLusVVfWVnRX/W/WXp/aoIfagG46a/h RxZGfUkh8Swseb4vD/nFrTvddGxHnkaendhSenxwuEL1K5dfVCQvescY1cZVYflnlpinYCCLry76N FgX30QiXIKXiIzSY0cvmc0No0Ntvmt0Hyl3mGUWIYBPptYP4WAE+fLelEsXpngaLU+9OZlPQJq3ba NbF/NxJ/goD9GswZ8oAQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t4MLR-00000004GQh-1acl; Fri, 25 Oct 2024 15:35:21 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t4Lyw-00000004Afg-2smR for kexec@lists.infradead.org; Fri, 25 Oct 2024 15:12:08 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1729869125; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5pKboAP4By7PRQHzx/JKVUBvBNHAppZRg9bKS5h/5DI=; b=VukhtJoPBfHiAc2/UBzws3WBuRBVdVKhfGRg0U9l98yaWZaQ3vfLA9eKSuBmILs8viq7ZH RN2zDlmpUawu6oyn1xsrOZAWBd6ig4VQi2RjR5aTqOrlbXIwNLWscFsGq9RvYv5M4pgDYS mcRgKRo8xxJuqD5+8cOQ6tCNDB55rFU= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-505-2i6VTHzzNouTjIokigDSJA-1; Fri, 25 Oct 2024 11:12:04 -0400 X-MC-Unique: 2i6VTHzzNouTjIokigDSJA-1 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 4B3F51955F3F; Fri, 25 Oct 2024 15:12:02 +0000 (UTC) Received: from t14s.redhat.com (unknown [10.22.65.27]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 7CD01300018D; Fri, 25 Oct 2024 15:11:53 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-s390@vger.kernel.org, virtualization@lists.linux.dev, kvm@vger.kernel.org, linux-fsdevel@vger.kernel.org, kexec@lists.infradead.org, David Hildenbrand , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?UTF-8?q?Eugenio=20P=C3=A9rez?= , Baoquan He , Vivek Goyal , Dave Young , Thomas Huth , Cornelia Huck , Janosch Frank , Claudio Imbrenda , Eric Farman , Andrew Morton Subject: [PATCH v1 02/11] fs/proc/vmcore: replace vmcoredd_mutex by vmcore_mutex Date: Fri, 25 Oct 2024 17:11:24 +0200 Message-ID: <20241025151134.1275575-3-david@redhat.com> In-Reply-To: <20241025151134.1275575-1-david@redhat.com> References: <20241025151134.1275575-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241025_081206_819768_D3F848F4 X-CRM114-Status: GOOD ( 11.62 ) X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org Let's use our new mutex instead. Signed-off-by: David Hildenbrand --- fs/proc/vmcore.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c index 110ce193d20f..b91c304463c9 100644 --- a/fs/proc/vmcore.c +++ b/fs/proc/vmcore.c @@ -53,7 +53,6 @@ static struct proc_dir_entry *proc_vmcore; #ifdef CONFIG_PROC_VMCORE_DEVICE_DUMP /* Device Dump list and mutex to synchronize access to list */ static LIST_HEAD(vmcoredd_list); -static DEFINE_MUTEX(vmcoredd_mutex); static bool vmcoredd_disabled; core_param(novmcoredd, vmcoredd_disabled, bool, 0); @@ -248,7 +247,7 @@ static int vmcoredd_copy_dumps(struct iov_iter *iter, u64 start, size_t size) size_t tsz; char *buf; - mutex_lock(&vmcoredd_mutex); + mutex_lock(&vmcore_mutex); list_for_each_entry(dump, &vmcoredd_list, list) { if (start < offset + dump->size) { tsz = min(offset + (u64)dump->size - start, (u64)size); @@ -269,7 +268,7 @@ static int vmcoredd_copy_dumps(struct iov_iter *iter, u64 start, size_t size) } out_unlock: - mutex_unlock(&vmcoredd_mutex); + mutex_unlock(&vmcore_mutex); return ret; } @@ -283,7 +282,7 @@ static int vmcoredd_mmap_dumps(struct vm_area_struct *vma, unsigned long dst, size_t tsz; char *buf; - mutex_lock(&vmcoredd_mutex); + mutex_lock(&vmcore_mutex); list_for_each_entry(dump, &vmcoredd_list, list) { if (start < offset + dump->size) { tsz = min(offset + (u64)dump->size - start, (u64)size); @@ -306,7 +305,7 @@ static int vmcoredd_mmap_dumps(struct vm_area_struct *vma, unsigned long dst, } out_unlock: - mutex_unlock(&vmcoredd_mutex); + mutex_unlock(&vmcore_mutex); return ret; } #endif /* CONFIG_MMU */ @@ -1517,9 +1516,9 @@ int vmcore_add_device_dump(struct vmcoredd_data *data) dump->size = data_size; /* Add the dump to driver sysfs list */ - mutex_lock(&vmcoredd_mutex); + mutex_lock(&vmcore_mutex); list_add_tail(&dump->list, &vmcoredd_list); - mutex_unlock(&vmcoredd_mutex); + mutex_unlock(&vmcore_mutex); vmcoredd_update_size(data_size); return 0; @@ -1537,7 +1536,7 @@ EXPORT_SYMBOL(vmcore_add_device_dump); static void vmcore_free_device_dumps(void) { #ifdef CONFIG_PROC_VMCORE_DEVICE_DUMP - mutex_lock(&vmcoredd_mutex); + mutex_lock(&vmcore_mutex); while (!list_empty(&vmcoredd_list)) { struct vmcoredd_node *dump; @@ -1547,7 +1546,7 @@ static void vmcore_free_device_dumps(void) vfree(dump->buf); vfree(dump); } - mutex_unlock(&vmcoredd_mutex); + mutex_unlock(&vmcore_mutex); #endif /* CONFIG_PROC_VMCORE_DEVICE_DUMP */ } -- 2.46.1 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec