Message ID | 20180730071548.9172-6-yehs2007@zoho.com (mailing list archive) |
---|---|
State | Not Applicable, archived |
Delegated to: | Mike Snitzer |
Headers | show
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Mon, 30 Jul 2018 07:17:16 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.41]); Mon, 30 Jul 2018 07:17:16 +0000 (UTC) for IP:'135.84.80.237' DOMAIN:'sender-pp-092.zoho.com' HELO:'sender-pp-092.zoho.com' FROM:'yehs2007@zoho.com' RCPT:'' X-RedHat-Spam-Score: 0.14 (DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM, RCVD_IN_DNSWL_NONE, SPF_PASS) 135.84.80.237 sender-pp-092.zoho.com 135.84.80.237 sender-pp-092.zoho.com <yehs2007@zoho.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.110.41 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-loop: dm-devel@redhat.com X-Mailman-Approved-At: Mon, 30 Jul 2018 04:28:49 -0400 Cc: jack@suse.cz, snitzer@redhat.com, heiko.carstens@de.ibm.com, dm-devel@redhat.com, agk@redhat.com, linux-s390@vger.kernel.org, dave.jiang@intel.com, Huaisheng Ye <yehs1@lenovo.com>, vishal.l.verma@intel.com, willy@infradead.org, bart.vanassche@wdc.com, ross.zwisler@linux.intel.com, keescook@chromium.org, chengnt@lenovo.com, colyli@suse.de, schwidefsky@de.ibm.com, viro@zeniv.linux.org.uk, axboe@kernel.dk, martin.petersen@oracle.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [dm-devel] [PATCH v3 5/6] md/dm-writecache: Don't request pointer dummy_addr when not required X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development <dm-devel.redhat.com> List-Unsubscribe: <https://www.redhat.com/mailman/options/dm-devel>, <mailto:dm-devel-request@redhat.com?subject=unsubscribe> List-Archive: <https://www.redhat.com/archives/dm-devel> List-Post: <mailto:dm-devel@redhat.com> List-Help: <mailto:dm-devel-request@redhat.com?subject=help> List-Subscribe: <https://www.redhat.com/mailman/listinfo/dm-devel>, <mailto:dm-devel-request@redhat.com?subject=subscribe> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 30 Jul 2018 08:29:56 +0000 (UTC) X-Virus-Scanned: ClamAV using ClamSMTP |
Series |
kaddr and pfn can be NULL to ->direct_access()
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expand
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diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c index 87107c9..9d79084 100644 --- a/drivers/md/dm-writecache.c +++ b/drivers/md/dm-writecache.c @@ -268,9 +268,8 @@ static int persistent_memory_claim(struct dm_writecache *wc) i = 0; do { long daa; - void *dummy_addr; daa = dax_direct_access(wc->ssd_dev->dax_dev, i, p - i, - &dummy_addr, &pfn); + NULL, &pfn); if (daa <= 0) { r = daa ? daa : -EINVAL; goto err3;