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Fri, 09 Oct 2020 19:53:12 +0000 Received: from mga12.intel.com (unknown [192.55.52.136]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 19dafb76-799b-4177-8d09-41d49a2e1241; Fri, 09 Oct 2020 19:53:07 +0000 (UTC) Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2020 12:53:06 -0700 Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2020 12:53:05 -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: 19dafb76-799b-4177-8d09-41d49a2e1241 IronPort-SDR: ypbsF279aj/UfkFu7vSHb62UW4kIuhQf4geco3iFinIuY00FES/7BN88CYJoC27z1lNDTwV/ao vzSvvvR0LXWw== X-IronPort-AV: E=McAfee;i="6000,8403,9769"; a="144850994" X-IronPort-AV: E=Sophos;i="5.77,355,1596524400"; d="scan'208";a="144850994" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False IronPort-SDR: +9tLMQNrOc9ZmtQe+NKSSXZyhjRooFfxfongQijBj4blQjg4c6+fJ/ZHkl3bUeAx7HZ0qDTuwd uW08H1SVCXkg== X-IronPort-AV: E=Sophos;i="5.77,355,1596524400"; d="scan'208";a="343972363" 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 38/58] fs/isofs: Utilize new kmap_thread() Date: Fri, 9 Oct 2020 12:50:13 -0700 Message-Id: <20201009195033.3208459-39-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/isofs/compress.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c index bc12ac7e2312..ddd3fd99d2e1 100644 --- a/fs/isofs/compress.c +++ b/fs/isofs/compress.c @@ -344,7 +344,7 @@ static int zisofs_readpage(struct file *file, struct pa= ge *page) pages[i] =3D grab_cache_page_nowait(mapping, index); if (pages[i]) { ClearPageError(pages[i]); - kmap(pages[i]); + kmap_thread(pages[i]); } } =20 @@ -356,7 +356,7 @@ static int zisofs_readpage(struct file *file, struct pa= ge *page) flush_dcache_page(pages[i]); if (i =3D=3D full_page && err) SetPageError(pages[i]); - kunmap(pages[i]); + kunmap_thread(pages[i]); unlock_page(pages[i]); if (i !=3D full_page) put_page(pages[i]); --=20 2.28.0.rc0.12.gb6a658bd00c9