From: Christoph Hellwig <hch@infradead.org>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: david@fromorbit.com, sandeen@redhat.com,
linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org,
Amir Goldstein <amir73il@gmail.com>,
linux-unionfs@vger.kernel.org, linux-xfs@vger.kernel.org,
linux-mm@kvack.org, linux-btrfs@vger.kernel.org,
linux-fsdevel@vger.kernel.org, ocfs2-devel@oss.oracle.com
Subject: Re: [PATCH 18/25] vfs: hide file range comparison function
Date: Sun, 14 Oct 2018 10:43:24 -0700 [thread overview]
Message-ID: <20181014174324.GC6400@infradead.org> (raw)
In-Reply-To: <153938927103.8361.6327676425188043040.stgit@magnolia>
> +static struct page *vfs_dedupe_get_page(struct inode *inode, loff_t offset)
> +{
> + struct address_space *mapping;
> + struct page *page;
> + pgoff_t n;
> +
> + n = offset >> PAGE_SHIFT;
> + mapping = inode->i_mapping;
> + page = read_mapping_page(mapping, n, NULL);
> + if (IS_ERR(page))
> + return page;
> + if (!PageUptodate(page)) {
> + put_page(page);
> + return ERR_PTR(-EIO);
> + }
> + lock_page(page);
> + return page;
> +}
Might be worth to clean ths up a bit while you are at it:
+static struct page *vfs_dedupe_get_page(struct inode *inode, loff_t offset)
{
struct page *page;
page = read_mapping_page(inode->i_mapping, offset >> PAGE_SHIFT, NULL);
...
Otherwise looks fine:
Reviewed-by: Christoph Hellwig <hch@lst.de>
next prev parent reply other threads:[~2018-10-14 17:43 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-13 0:05 [PATCH v4 00/25] fs: fixes for serious clone/dedupe problems Darrick J. Wong
2018-10-13 0:05 ` [PATCH 01/25] xfs: add a per-xfs trace_printk macro Darrick J. Wong
2018-10-13 0:05 ` [PATCH 02/25] vfs: vfs_clone_file_prep_inodes should return EINVAL for a clone from beyond EOF Darrick J. Wong
2018-10-13 0:06 ` [PATCH 03/25] vfs: check file ranges before cloning files Darrick J. Wong
2018-10-13 0:06 ` [PATCH 04/25] vfs: strengthen checking of file range inputs to generic_remap_checks Darrick J. Wong
2018-10-13 0:06 ` [PATCH 05/25] vfs: avoid problematic remapping requests into partial EOF block Darrick J. Wong
2018-10-14 17:11 ` Christoph Hellwig
2018-10-13 0:06 ` [PATCH 06/25] vfs: skip zero-length dedupe requests Darrick J. Wong
2018-10-13 0:06 ` [PATCH 07/25] vfs: combine the clone and dedupe into a single remap_file_range Darrick J. Wong
2018-10-14 17:19 ` Christoph Hellwig
2018-10-15 6:04 ` Amir Goldstein
2018-10-15 12:47 ` Christoph Hellwig
2018-10-15 12:54 ` Amir Goldstein
2018-10-15 17:13 ` Darrick J. Wong
2018-10-15 18:32 ` Christoph Hellwig
2018-10-15 13:18 ` Matthew Wilcox
2018-10-15 16:42 ` Darrick J. Wong
2018-10-13 0:06 ` [PATCH 08/25] vfs: rename vfs_clone_file_prep to be more descriptive Darrick J. Wong
2018-10-13 0:06 ` [PATCH 09/25] vfs: rename clone_verify_area to remap_verify_area Darrick J. Wong
2018-10-13 0:06 ` [PATCH 10/25] vfs: create generic_remap_file_range_touch to update inode metadata Darrick J. Wong
2018-10-14 17:21 ` Christoph Hellwig
2018-10-15 16:30 ` Darrick J. Wong
2018-10-15 18:19 ` Christoph Hellwig
2018-10-13 0:06 ` [PATCH 11/25] vfs: pass remap flags to generic_remap_file_range_prep Darrick J. Wong
2018-10-14 17:22 ` Christoph Hellwig
2018-10-14 17:37 ` Christoph Hellwig
2018-10-15 15:42 ` Darrick J. Wong
2018-10-13 0:07 ` [PATCH 12/25] vfs: pass remap flags to generic_remap_checks Darrick J. Wong
2018-10-13 0:07 ` [PATCH 13/25] vfs: make remap_file_range functions take and return bytes completed Darrick J. Wong
2018-10-13 0:07 ` [PATCH 14/25] vfs: plumb RFR_* remap flags through the vfs clone functions Darrick J. Wong
2018-10-13 0:07 ` [PATCH 15/25] vfs: plumb RFR_* remap flags through the vfs dedupe functions Darrick J. Wong
2018-10-13 0:07 ` [PATCH 16/25] vfs: make remapping to source file eof more explicit Darrick J. Wong
2018-10-14 17:24 ` Christoph Hellwig
2018-10-15 15:32 ` Darrick J. Wong
2018-10-15 18:28 ` Christoph Hellwig
2018-10-13 0:07 ` [PATCH 17/25] vfs: enable remap callers that can handle short operations Darrick J. Wong
2018-10-13 0:07 ` [PATCH 18/25] vfs: hide file range comparison function Darrick J. Wong
2018-10-14 17:43 ` Christoph Hellwig [this message]
2018-10-13 0:07 ` [PATCH 19/25] vfs: implement opportunistic short dedupe Darrick J. Wong
2018-10-14 17:26 ` Christoph Hellwig
2018-10-13 0:08 ` [PATCH 20/25] ocfs2: truncate page cache for clone destination file before remapping Darrick J. Wong
2018-10-13 0:08 ` [PATCH 21/25] ocfs2: fix pagecache truncation prior to reflink Darrick J. Wong
2018-10-13 0:08 ` [PATCH 22/25] ocfs2: support partial clone range and dedupe range Darrick J. Wong
2018-10-14 17:41 ` Christoph Hellwig
2018-10-13 0:08 ` [PATCH 23/25] xfs: fix pagecache truncation prior to reflink Darrick J. Wong
2018-10-13 0:08 ` [PATCH 24/25] xfs: support returning partial reflink results Darrick J. Wong
2018-10-14 17:35 ` Christoph Hellwig
2018-10-14 23:05 ` Dave Chinner
2018-10-15 15:49 ` Darrick J. Wong
2018-10-13 0:08 ` [PATCH 25/25] xfs: remove redundant remap partial EOF block checks Darrick J. Wong
-- strict thread matches above, loose matches on Subject: below --
2018-10-11 4:12 [PATCH v3 00/25] fs: fixes for serious clone/dedupe problems Darrick J. Wong
2018-10-11 4:14 ` [PATCH 18/25] vfs: hide file range comparison function Darrick J. Wong
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