Message ID | 20201009195033.3208459-27-ira.weiny@intel.com |
---|---|
State | Not Applicable |
Headers | show
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Fri, 09 Oct 2020 19:52:58 +0000 IronPort-SDR: CYj5P1Bma1ni1/StiG1uUBo7Z5L7o8gaXfesstrjQFhLqtnmVtlxwWBBAXyFYVy4SIYAVZnwTR GQNVmMpgeCSw== X-IronPort-AV: E=McAfee;i="6000,8403,9769"; a="162893445" X-IronPort-AV: E=Sophos;i="5.77,355,1596524400"; d="scan'208";a="162893445" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2020 12:52:22 -0700 IronPort-SDR: 66NbHcTTg+QzLX/XjjZVbeOCocpzHQlXc/1uyGjsCwgKA6U0t9qDgsp0fGjjJhdH2o4WKM8nKt 1m4fFh6MimYQ== X-IronPort-AV: E=Sophos;i="5.77,355,1596524400"; d="scan'208";a="354959189" Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2020 12:52:21 -0700 From: ira.weiny@intel.com To: Andrew Morton <akpm@linux-foundation.org>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>, Peter Zijlstra <peterz@infradead.org> Subject: [PATCH RFC PKS/PMEM 26/58] fs/zonefs: Utilize new kmap_thread() Date: Fri, 9 Oct 2020 12:50:01 -0700 Message-Id: <20201009195033.3208459-27-ira.weiny@intel.com> X-Mailer: git-send-email 2.28.0.rc0.12.gb6a658bd00c9 In-Reply-To: <20201009195033.3208459-1-ira.weiny@intel.com> References: <20201009195033.3208459-1-ira.weiny@intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201009_205230_685186_B108D359 X-CRM114-Status: GOOD ( 13.04 ) X-Spam-Score: -4.2 (----) X-Spam-Report: SpamAssassin version 3.4.4 on casper.infradead.org summary: Content analysis details: (-4.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [192.55.52.120 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list <linux-mtd.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-mtd>, <mailto:linux-mtd-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-mtd/> List-Post: <mailto:linux-mtd@lists.infradead.org> List-Help: <mailto:linux-mtd-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-mtd>, <mailto:linux-mtd-request@lists.infradead.org?subject=subscribe> Cc: linux-aio@kvack.org, linux-efi@vger.kernel.org, kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-mmc@vger.kernel.org, Dave Hansen <dave.hansen@linux.intel.com>, dri-devel@lists.freedesktop.org, linux-mm@kvack.org, target-devel@vger.kernel.org, linux-mtd@lists.infradead.org, linux-kselftest@vger.kernel.org, samba-technical@lists.samba.org, Ira Weiny <ira.weiny@intel.com>, ceph-devel@vger.kernel.org, drbd-dev@lists.linbit.com, Naohiro Aota <naohiro.aota@wdc.com>, linux-cifs@vger.kernel.org, linux-nilfs@vger.kernel.org, linux-scsi@vger.kernel.org, linux-nvdimm@lists.01.org, linux-rdma@vger.kernel.org, x86@kernel.org, amd-gfx@lists.freedesktop.org, linux-afs@lists.infradead.org, cluster-devel@redhat.com, linux-cachefs@redhat.com, intel-wired-lan@lists.osuosl.org, xen-devel@lists.xenproject.org, linux-ext4@vger.kernel.org, Fenghua Yu <fenghua.yu@intel.com>, devel@driverdev.osuosl.org, linux-um@lists.infradead.org, intel-gfx@lists.freedesktop.org, ecryptfs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-nfs@vger.kernel.org, reiserfs-devel@vger.kernel.org, linux-block@vger.kernel.org, linux-bcache@vger.kernel.org, Dan Williams <dan.j.williams@intel.com>, io-uring@vger.kernel.org, Damien Le Moal <damien.lemoal@wdc.com>, linux-ntfs-dev@lists.sourceforge.net, netdev@vger.kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, bpf@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-btrfs@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" <linux-mtd-bounces@lists.infradead.org> Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org |
Series |
PMEM: Introduce stray write protection for PMEM
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On 2020/10/10 4:52, ira.weiny@intel.com wrote: > From: Ira Weiny <ira.weiny@intel.com> > > The kmap() calls in this FS are localized to a single thread. To avoid > the over head of global PKRS updates use the new kmap_thread() call. > > Cc: Damien Le Moal <damien.lemoal@wdc.com> > Cc: Naohiro Aota <naohiro.aota@wdc.com> > Signed-off-by: Ira Weiny <ira.weiny@intel.com> > --- > fs/zonefs/super.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c > index 8ec7c8f109d7..2fd6c86beee1 100644 > --- a/fs/zonefs/super.c > +++ b/fs/zonefs/super.c > @@ -1297,7 +1297,7 @@ static int zonefs_read_super(struct super_block *sb) > if (ret) > goto free_page; > > - super = kmap(page); > + super = kmap_thread(page); > > ret = -EINVAL; > if (le32_to_cpu(super->s_magic) != ZONEFS_MAGIC) > @@ -1349,7 +1349,7 @@ static int zonefs_read_super(struct super_block *sb) > ret = 0; > > unmap: > - kunmap(page); > + kunmap_thread(page); > free_page: > __free_page(page); > > acked-by: Damien Le Moal <damien.lemoal@wdc.com>
diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c index 8ec7c8f109d7..2fd6c86beee1 100644 --- a/fs/zonefs/super.c +++ b/fs/zonefs/super.c @@ -1297,7 +1297,7 @@ static int zonefs_read_super(struct super_block *sb) if (ret) goto free_page; - super = kmap(page); + super = kmap_thread(page); ret = -EINVAL; if (le32_to_cpu(super->s_magic) != ZONEFS_MAGIC) @@ -1349,7 +1349,7 @@ static int zonefs_read_super(struct super_block *sb) ret = 0; unmap: - kunmap(page); + kunmap_thread(page); free_page: __free_page(page);