From patchwork Mon Jul 19 10:35:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12385383 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EAA1F29D6 for ; Mon, 19 Jul 2021 10:52:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=Hvw30GJ0evzuhY4uOcydQGq4CnCpbv168ctwEXBAMa8=; b=OzLt7+8QxKnaWa9kXqH2SHZzw+ cA9FAAKFo9qd7tFotPAkq6BVXtegxLInJAJut1HmzWdgECwWcp68LeFdDjzQlzOmak1vihKI/4ZeN Y8B6mFIEEEkZJmYp7FWTussjIlF5mFZ0tYYxcGq1Q+AK7l2jkr5HWR87VlF+0F7T3/3RFOuiS9RTA nrPdZ7Jtj7/0n9oAeNWdXZbtuCrFg+CpfHJ3NtFVn1301iIe/v1bNxAeqMV3vmGSmTBzw6T/qbWNb peM+vkvVILA0ZSLszjsgRhHG+AdiAoODtD3CY52UDywVo0hltpImyF/i1od6qJPbtj/Xo/ibtCRel SwQrRO+Q==; Received: from [2001:4bb8:193:7660:d2a4:8d57:2e55:21d0] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1m5QqE-006lPa-Sw; Mon, 19 Jul 2021 10:49:59 +0000 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Dan Williams , Matthew Wilcox , Andreas Gruenbacher , Shiyang Ruan , linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org, nvdimm@lists.linux.dev, cluster-devel@redhat.com Subject: [PATCH 12/27] iomap: switch iomap_zero_range to use iomap_iter Date: Mon, 19 Jul 2021 12:35:05 +0200 Message-Id: <20210719103520.495450-13-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210719103520.495450-1-hch@lst.de> References: <20210719103520.495450-1-hch@lst.de> Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Switch iomap_zero_range to use iomap_iter. Signed-off-by: Christoph Hellwig --- fs/iomap/buffered-io.c | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 59781c72c278e5..e5832ffb413cb6 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -885,11 +885,12 @@ static s64 iomap_zero(struct inode *inode, loff_t pos, u64 length, return iomap_write_end(inode, pos, bytes, bytes, page, iomap, srcmap); } -static loff_t iomap_zero_range_actor(struct inode *inode, loff_t pos, - loff_t length, void *data, struct iomap *iomap, - struct iomap *srcmap) +static loff_t iomap_zero_iter(struct iomap_iter *iter, bool *did_zero) { - bool *did_zero = data; + struct iomap *iomap = &iter->iomap; + struct iomap *srcmap = iomap_iter_srcmap(iter); + loff_t pos = iter->pos; + loff_t length = iomap_length(iter); loff_t written = 0; /* already zeroed? we're done. */ @@ -899,10 +900,11 @@ static loff_t iomap_zero_range_actor(struct inode *inode, loff_t pos, do { s64 bytes; - if (IS_DAX(inode)) + if (IS_DAX(iter->inode)) bytes = dax_iomap_zero(pos, length, iomap); else - bytes = iomap_zero(inode, pos, length, iomap, srcmap); + bytes = iomap_zero(iter->inode, pos, length, iomap, + srcmap); if (bytes < 0) return bytes; @@ -920,19 +922,17 @@ int iomap_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero, const struct iomap_ops *ops) { - loff_t ret; - - while (len > 0) { - ret = iomap_apply(inode, pos, len, IOMAP_ZERO, - ops, did_zero, iomap_zero_range_actor); - if (ret <= 0) - return ret; - - pos += ret; - len -= ret; - } + struct iomap_iter iter = { + .inode = inode, + .pos = pos, + .len = len, + .flags = IOMAP_ZERO, + }; + int ret; - return 0; + while ((ret = iomap_iter(&iter, ops)) > 0) + iter.processed = iomap_zero_iter(&iter, did_zero); + return ret; } EXPORT_SYMBOL_GPL(iomap_zero_range);