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[99.254.121.117]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6b761978d30sm24039356d6.31.2024.07.15.12.21.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Jul 2024 12:21:47 -0700 (PDT) From: Peter Xu To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/8] mm/dax: Dump start address in fault handler Date: Mon, 15 Jul 2024 15:21:35 -0400 Message-ID: <20240715192142.3241557-2-peterx@redhat.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240715192142.3241557-1-peterx@redhat.com> References: <20240715192142.3241557-1-peterx@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dave Hansen , peterx@redhat.com, Christophe Leroy , Dan Williams , Dave Jiang , "Aneesh Kumar K . V" , x86@kernel.org, Hugh Dickins , Matthew Wilcox , Ingo Molnar , Huang Ying , Rik van Riel , Nicholas Piggin , Borislav Petkov , "Kirill A . Shutemov" , Thomas Gleixner , Vlastimil Babka , Oscar Salvador , linuxppc-dev@lists.ozlabs.org, Andrew Morton , Rick P Edgecombe , Mel Gorman Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Currently the dax fault handler dumps the vma range when dynamic debugging enabled. That's mostly not useful. Dump the (aligned) address instead with the order info. Signed-off-by: Peter Xu --- drivers/dax/device.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/dax/device.c b/drivers/dax/device.c index eb61598247a9..714174844ca5 100644 --- a/drivers/dax/device.c +++ b/drivers/dax/device.c @@ -235,9 +235,9 @@ static vm_fault_t dev_dax_huge_fault(struct vm_fault *vmf, unsigned int order) int id; struct dev_dax *dev_dax = filp->private_data; - dev_dbg(&dev_dax->dev, "%s: %s (%#lx - %#lx) order:%d\n", current->comm, - (vmf->flags & FAULT_FLAG_WRITE) ? "write" : "read", - vmf->vma->vm_start, vmf->vma->vm_end, order); + dev_dbg(&dev_dax->dev, "%s: op=%s addr=%#lx order=%d\n", current->comm, + (vmf->flags & FAULT_FLAG_WRITE) ? "write" : "read", + vmf->address & ~((1UL << (order + PAGE_SHIFT)) - 1), order); id = dax_read_lock(); if (order == 0) -- 2.45.0 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id B418FC3DA61 for ; Mon, 15 Jul 2024 19:21:55 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 000CD6B0095; Mon, 15 Jul 2024 15:21:55 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id EF3BD6B0096; Mon, 15 Jul 2024 15:21:54 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CD0856B0098; Mon, 15 Jul 2024 15:21:54 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id B06466B0095 for ; Mon, 15 Jul 2024 15:21:54 -0400 (EDT) Received: from smtpin18.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 50385A5306 for ; 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[99.254.121.117]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6b761978d30sm24039356d6.31.2024.07.15.12.21.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Jul 2024 12:21:47 -0700 (PDT) From: Peter Xu To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Dave Jiang , Rik van Riel , Dave Hansen , Michael Ellerman , linuxppc-dev@lists.ozlabs.org, Matthew Wilcox , Rick P Edgecombe , peterx@redhat.com, Oscar Salvador , Mel Gorman , Andrew Morton , Borislav Petkov , Christophe Leroy , Huang Ying , "Kirill A . Shutemov" , "Aneesh Kumar K . V" , Dan Williams , Thomas Gleixner , Hugh Dickins , x86@kernel.org, Nicholas Piggin , Vlastimil Babka , Ingo Molnar Subject: [PATCH v3 1/8] mm/dax: Dump start address in fault handler Date: Mon, 15 Jul 2024 15:21:35 -0400 Message-ID: <20240715192142.3241557-2-peterx@redhat.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240715192142.3241557-1-peterx@redhat.com> References: <20240715192142.3241557-1-peterx@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: C1E8B180015 X-Stat-Signature: zyrrp46e9whghyu1pk8fi31e6p1apmw9 X-Rspam-User: X-HE-Tag: 1721071311-336124 X-HE-Meta: U2FsdGVkX18ym9eX29/iJj6dYpZjMVBaj3KoMcAu8BwtDA6IkxffjTmy7BxTCtkyXkTfQFmpB7gyo7iPy34UUvAYRdIoIgr/FfqUCbMmBiZ10cEAVO0EpJqq2DwA5vHY0gWBVbuoRpOqPFEYEFU/yoobWWSW+fB3lIjEX7+EaNcGjF+7M/uqveO/YlyKbbucqeI7Q59ul2Gie2D+Rm1c4HN1Kq0xe7TvlCxxVUR9OBKTdHHXcy8FzwQKqxWYkmJ7zC8tHeftTO4X8ssz4SZCPHCNOrGmgzgeuIEhOKkPhpD4nsDcRj4TOuVZqZC4HHXjGuomRsXe0/mDvurAh9AP9tMXC8DGEtOeY6rHKCmY08jiHCPrVL4Q1ir6pqDrYzG1TvMX+XH0Ej8yI46igSYPmfNbBpdXJ2oeOvNaROS86BNnM2o1lFQYALkkdyPLWuLKB2rLUtGS0hImr12MIuPNagCTkYEryCvUJ0Ixe6APv1W6c1EgolwKg5Y+Upz9DkabNT8lgZUpyfTxyi466m/Jj8vXB1QuOPeMRkDStf7RRPoocPylkiwOh5ot8wDUozlZNp8lR/6sp8pU9qrq+phU4FVpEYsjHsyf2X/OLieA9aHtIZ2d0k3SVapzVNsyD4q+PifmOGVGxg5MlB/25uGzXNDiPfWNfqdUJ/mw+YB5z2+A2YbDa2/dR8pbSKc8vIfAoiiodBcACfL5a1bRol30B4x+Ocuti7Xu/2t+hUvMqk14bNG9+wVOdXXp5KLOz8ukWycKrP5ntFFxyX5BHbBiEBuVGHLwA6K6UpRSwab2orUuGApNVyM0i7JYkNv00yzms4U/VpVmqq2QJUTss0PU1UVsK+Yt+Y2dBsPm6sBURfSVSaYC+MzKl3kXCHCtOOE84aB4IBRZBSt8uphyMz/ZRGAvX3ICQhpzag9wfk4wMBQqK82ygqUf8hwifsRtp8Q1BQT0YA9xUd9UorCw1d+ jAGSX4t3 qL7zEOEWXH0zfxS2dbzUCswa++5U6F8FcEsIeN/g9lkoL3ajgdtiBCYsJMQ67waXtvjCLHazDB1jCbQ3Zbc1MgneEHvHTxEzzfr0RmsFhWjfEMSh12ySQcmFU+m84JTNG602rN3cy8yfnegF03mi8LwXQICofbUw/u0VoC1t/qY+8Xhke1JOpffk+Mmh0o5I6QqHUZUR3JB30Wdf94zaydhsIy4/Eb+8upKFFrx/uI5GLvo96mQNXiCUpW056qmgOROErU5oMF9GXqPJb9IODZLlKHCvAWk4CIb+V X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Currently the dax fault handler dumps the vma range when dynamic debugging enabled. That's mostly not useful. Dump the (aligned) address instead with the order info. Signed-off-by: Peter Xu --- drivers/dax/device.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/dax/device.c b/drivers/dax/device.c index eb61598247a9..714174844ca5 100644 --- a/drivers/dax/device.c +++ b/drivers/dax/device.c @@ -235,9 +235,9 @@ static vm_fault_t dev_dax_huge_fault(struct vm_fault *vmf, unsigned int order) int id; struct dev_dax *dev_dax = filp->private_data; - dev_dbg(&dev_dax->dev, "%s: %s (%#lx - %#lx) order:%d\n", current->comm, - (vmf->flags & FAULT_FLAG_WRITE) ? "write" : "read", - vmf->vma->vm_start, vmf->vma->vm_end, order); + dev_dbg(&dev_dax->dev, "%s: op=%s addr=%#lx order=%d\n", current->comm, + (vmf->flags & FAULT_FLAG_WRITE) ? "write" : "read", + vmf->address & ~((1UL << (order + PAGE_SHIFT)) - 1), order); id = dax_read_lock(); if (order == 0) -- 2.45.0