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Thu, 12 Aug 2021 11:56:24 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap1.suse-dmz.suse.de with ESMTPSA id xVpPF2gMFWHAPQAAGKfGzw (envelope-from ); Thu, 12 Aug 2021 11:56:24 +0000 Subject: Re: [PATCH v14 062/138] mm/migrate: Add folio_migrate_copy() To: "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org References: <20210715033704.692967-1-willy@infradead.org> <20210715033704.692967-63-willy@infradead.org> From: Vlastimil Babka Message-ID: Date: Thu, 12 Aug 2021 13:56:24 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: <20210715033704.692967-63-willy@infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 2BA521010F09 Authentication-Results: imf12.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=f+WYP7PF; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=Dq4VDVt1; dmarc=none; spf=pass (imf12.hostedemail.com: domain of vbabka@suse.cz designates 195.135.220.28 as permitted sender) smtp.mailfrom=vbabka@suse.cz X-Rspamd-Server: rspam04 X-Stat-Signature: zt6ryfts3bbh8q8rcj89p3sp8t4k4swt X-HE-Tag: 1628769386-906456 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: On 7/15/21 5:35 AM, Matthew Wilcox (Oracle) wrote: > This is the folio equivalent of migrate_page_copy(), which is retained > as a wrapper for filesystems which are not yet converted to folios. > Also convert copy_huge_page() to folio_copy(). > > Signed-off-by: Matthew Wilcox (Oracle) Acked-by: Vlastimil Babka The way folio_copy() avoids cond_resched() for single page would IMHO deserve a comment though, so it's not buried only in this thread.