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Fri, 09 Oct 2020 19:53:17 +0000 Received: from mga05.intel.com (unknown [192.55.52.43]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 2b9f24bd-4098-4169-8bf1-e2d9e98cb2ea; Fri, 09 Oct 2020 19:53:10 +0000 (UTC) Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2020 12:53:09 -0700 Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2020 12:53:08 -0700 X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 2b9f24bd-4098-4169-8bf1-e2d9e98cb2ea IronPort-SDR: wBpIZZUB0xS4qiwTrFwjmmX+/Zzas4vCfJwtYYWRJRGWc1i7EUIxnDY59J+tnUdZnUf79UjW7l x4vaRFHFWNtw== X-IronPort-AV: E=McAfee;i="6000,8403,9769"; a="250226251" X-IronPort-AV: E=Sophos;i="5.77,355,1596524400"; d="scan'208";a="250226251" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False IronPort-SDR: FciD93oXa6TN5PQF74JzeuCyRYkWBlT2lC/7ncntBELjkiuqMo1u2JSAhMViBtfJLu9YdFEYCB Wo/5PMHidIaw== X-IronPort-AV: E=Sophos;i="5.77,355,1596524400"; d="scan'208";a="317147397" From: ira.weiny@intel.com To: Andrew Morton , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Andy Lutomirski , Peter Zijlstra Cc: Ira Weiny , x86@kernel.org, Dave Hansen , Dan Williams , Fenghua Yu , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, kexec@lists.infradead.org, linux-bcache@vger.kernel.org, linux-mtd@lists.infradead.org, devel@driverdev.osuosl.org, linux-efi@vger.kernel.org, linux-mmc@vger.kernel.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-nfs@vger.kernel.org, ceph-devel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-aio@kvack.org, io-uring@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-um@lists.infradead.org, linux-ntfs-dev@lists.sourceforge.net, reiserfs-devel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-nilfs@vger.kernel.org, cluster-devel@redhat.com, ecryptfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-afs@lists.infradead.org, linux-rdma@vger.kernel.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, drbd-dev@lists.linbit.com, linux-block@vger.kernel.org, xen-devel@lists.xenproject.org, linux-cachefs@redhat.com, samba-technical@lists.samba.org, intel-wired-lan@lists.osuosl.org Subject: [PATCH RFC PKS/PMEM 39/58] fs/jffs2: Utilize new kmap_thread() Date: Fri, 9 Oct 2020 12:50:14 -0700 Message-Id: <20201009195033.3208459-40-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 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Ira Weiny These kmap() calls are localized to a single thread. To avoid the over hea= d of global PKRS updates use the new kmap_thread() call. Signed-off-by: Ira Weiny --- fs/jffs2/file.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c index 3e6d54f9b011..14dd2b18cc16 100644 --- a/fs/jffs2/file.c +++ b/fs/jffs2/file.c @@ -287,13 +287,13 @@ static int jffs2_write_end(struct file *filp, struct = address_space *mapping, =20 /* In 2.4, it was already kmapped by generic_file_write(). Doesn't hurt to do it again. The alternative is ifdefs, which are ugly. */ - kmap(pg); + kmap_thread(pg); =20 ret =3D jffs2_write_inode_range(c, f, ri, page_address(pg) + aligned_star= t, (pg->index << PAGE_SHIFT) + aligned_start, end - aligned_start, &writtenlen); =20 - kunmap(pg); + kunmap_thread(pg); =20 if (ret) { /* There was an error writing. */ --=20 2.28.0.rc0.12.gb6a658bd00c9