From: "Darrick J. Wong" <darrick.wong@oracle.com> To: david@fromorbit.com, darrick.wong@oracle.com Cc: sandeen@redhat.com, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-unionfs@vger.kernel.org, linux-xfs@vger.kernel.org, linux-mm@kvack.org, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig <hch@lst.de>, ocfs2-devel@oss.oracle.com Subject: [PATCH 01/28] vfs: vfs_clone_file_prep_inodes should return EINVAL for a clone from beyond EOF Date: Sun, 21 Oct 2018 09:15:10 -0700 [thread overview] Message-ID: <154013851007.29026.6847850518000401463.stgit@magnolia> (raw) In-Reply-To: <154013850285.29026.16168387526580596209.stgit@magnolia> From: Darrick J. Wong <darrick.wong@oracle.com> vfs_clone_file_prep_inodes cannot return 0 if it is asked to remap from a zero byte file because that's what btrfs does. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> --- fs/read_write.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/fs/read_write.c b/fs/read_write.c index 8a2737f0d61d..260797b01851 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1740,10 +1740,7 @@ int vfs_clone_file_prep_inodes(struct inode *inode_in, loff_t pos_in, if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode)) return -EINVAL; - /* Are we going all the way to the end? */ isize = i_size_read(inode_in); - if (isize == 0) - return 0; /* Zero length dedupe exits immediately; reflink goes to EOF. */ if (*len == 0) {
WARNING: multiple messages have this Message-ID (diff)
From: Darrick J. Wong <darrick.wong@oracle.com> To: david@fromorbit.com, darrick.wong@oracle.com Cc: sandeen@redhat.com, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-unionfs@vger.kernel.org, linux-xfs@vger.kernel.org, linux-mm@kvack.org, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig <hch@lst.de>, ocfs2-devel@oss.oracle.com Subject: [Ocfs2-devel] [PATCH 01/28] vfs: vfs_clone_file_prep_inodes should return EINVAL for a clone from beyond EOF Date: Sun, 21 Oct 2018 09:15:10 -0700 [thread overview] Message-ID: <154013851007.29026.6847850518000401463.stgit@magnolia> (raw) In-Reply-To: <154013850285.29026.16168387526580596209.stgit@magnolia> From: Darrick J. Wong <darrick.wong@oracle.com> vfs_clone_file_prep_inodes cannot return 0 if it is asked to remap from a zero byte file because that's what btrfs does. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> --- fs/read_write.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/fs/read_write.c b/fs/read_write.c index 8a2737f0d61d..260797b01851 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1740,10 +1740,7 @@ int vfs_clone_file_prep_inodes(struct inode *inode_in, loff_t pos_in, if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode)) return -EINVAL; - /* Are we going all the way to the end? */ isize = i_size_read(inode_in); - if (isize == 0) - return 0; /* Zero length dedupe exits immediately; reflink goes to EOF. */ if (*len == 0) {
next prev parent reply other threads:[~2018-10-21 16:15 UTC|newest] Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-10-21 16:15 [PATCH v6 00/28] fs: fixes for serious clone/dedupe problems Darrick J. Wong 2018-10-21 16:15 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:15 ` Darrick J. Wong [this message] 2018-10-21 16:15 ` [Ocfs2-devel] [PATCH 01/28] vfs: vfs_clone_file_prep_inodes should return EINVAL for a clone from beyond EOF Darrick J. Wong 2018-10-21 16:15 ` [PATCH 02/28] vfs: check file ranges before cloning files Darrick J. Wong 2018-10-21 16:15 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:15 ` [PATCH 03/28] vfs: exit early from zero length remap operations Darrick J. Wong 2018-10-21 16:15 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:15 ` [PATCH 04/28] vfs: strengthen checking of file range inputs to generic_remap_checks Darrick J. Wong 2018-10-21 16:15 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:15 ` [PATCH 05/28] vfs: avoid problematic remapping requests into partial EOF block Darrick J. Wong 2018-10-21 16:15 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:15 ` Darrick J. Wong 2018-10-21 16:15 ` [PATCH 06/28] vfs: skip zero-length dedupe requests Darrick J. Wong 2018-10-21 16:15 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:15 ` [PATCH 07/28] vfs: rename vfs_clone_file_prep to be more descriptive Darrick J. Wong 2018-10-21 16:15 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:15 ` [PATCH 08/28] vfs: rename clone_verify_area to remap_verify_area Darrick J. Wong 2018-10-21 16:15 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:16 ` [PATCH 09/28] vfs: combine the clone and dedupe into a single remap_file_range Darrick J. Wong 2018-10-21 16:16 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:16 ` [PATCH 10/28] vfs: pass remap flags to generic_remap_file_range_prep Darrick J. Wong 2018-10-21 16:16 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:16 ` [PATCH 11/28] vfs: pass remap flags to generic_remap_checks Darrick J. Wong 2018-10-21 16:16 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:16 ` Darrick J. Wong 2018-10-21 16:16 ` [PATCH 12/28] vfs: remap helper should update destination inode metadata Darrick J. Wong 2018-10-21 16:16 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:16 ` [PATCH 13/28] vfs: make remap_file_range functions take and return bytes completed Darrick J. Wong 2018-10-21 16:16 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:16 ` [PATCH 14/28] vfs: plumb remap flags through the vfs clone functions Darrick J. Wong 2018-10-21 16:16 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:16 ` [PATCH 15/28] vfs: plumb remap flags through the vfs dedupe functions Darrick J. Wong 2018-10-21 16:16 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:16 ` [PATCH 16/28] vfs: enable remap callers that can handle short operations Darrick J. Wong 2018-10-21 16:16 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:17 ` [PATCH 17/28] vfs: hide file range comparison function Darrick J. Wong 2018-10-21 16:17 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:17 ` Darrick J. Wong 2018-10-21 16:17 ` [PATCH 18/28] vfs: clean up generic_remap_file_range_prep return value Darrick J. Wong 2018-10-21 16:17 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:17 ` Darrick J. Wong 2018-10-21 16:17 ` [PATCH 19/28] ocfs2: truncate page cache for clone destination file before remapping Darrick J. Wong 2018-10-21 16:17 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:17 ` [PATCH 20/28] ocfs2: fix pagecache truncation prior to reflink Darrick J. Wong 2018-10-21 16:17 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:17 ` [PATCH 21/28] ocfs2: support partial clone range and dedupe range Darrick J. Wong 2018-10-21 16:17 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:17 ` [PATCH 22/28] ocfs2: remove ocfs2_reflink_remap_range Darrick J. Wong 2018-10-21 16:17 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:17 ` [PATCH 23/28] xfs: fix pagecache truncation prior to reflink Darrick J. Wong 2018-10-21 16:17 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:17 ` Darrick J. Wong 2018-10-21 16:17 ` [PATCH 24/28] xfs: clean up xfs_reflink_remap_blocks call site Darrick J. Wong 2018-10-21 16:17 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-22 2:11 ` Dave Chinner 2018-10-22 2:11 ` [Ocfs2-devel] " Dave Chinner 2018-10-21 16:17 ` [PATCH 25/28] xfs: support returning partial reflink results Darrick J. Wong 2018-10-21 16:17 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:17 ` Darrick J. Wong 2018-10-22 2:14 ` Dave Chinner 2018-10-22 2:14 ` [Ocfs2-devel] " Dave Chinner 2018-10-21 16:18 ` [PATCH 26/28] xfs: remove redundant remap partial EOF block checks Darrick J. Wong 2018-10-21 16:18 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-21 16:18 ` [PATCH 27/28] xfs: remove xfs_reflink_remap_range Darrick J. Wong 2018-10-21 16:18 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-22 2:17 ` Dave Chinner 2018-10-22 2:17 ` [Ocfs2-devel] " Dave Chinner 2018-10-21 16:18 ` [PATCH 28/28] xfs: remove [cm]time update from reflink calls Darrick J. Wong 2018-10-21 16:18 ` [Ocfs2-devel] " Darrick J. Wong 2018-10-22 2:18 ` Dave Chinner 2018-10-22 2:18 ` [Ocfs2-devel] " Dave Chinner 2018-10-22 2:21 ` [PATCH v6 00/28] fs: fixes for serious clone/dedupe problems Dave Chinner 2018-10-22 2:21 ` [Ocfs2-devel] " Dave Chinner 2018-10-22 4:37 ` Dave Chinner 2018-10-22 4:37 ` [Ocfs2-devel] " Dave Chinner 2018-10-22 4:52 ` Al Viro 2018-10-22 4:52 ` [Ocfs2-devel] " Al Viro 2018-10-22 5:08 ` Dave Chinner 2018-10-22 5:08 ` [Ocfs2-devel] " Dave Chinner 2018-10-22 5:42 ` Amir Goldstein 2018-10-22 6:55 ` Dave Chinner 2018-10-22 6:55 ` [Ocfs2-devel] " Dave Chinner
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=154013851007.29026.6847850518000401463.stgit@magnolia \ --to=darrick.wong@oracle.com \ --cc=david@fromorbit.com \ --cc=hch@lst.de \ --cc=linux-btrfs@vger.kernel.org \ --cc=linux-cifs@vger.kernel.org \ --cc=linux-fsdevel@vger.kernel.org \ --cc=linux-mm@kvack.org \ --cc=linux-nfs@vger.kernel.org \ --cc=linux-unionfs@vger.kernel.org \ --cc=linux-xfs@vger.kernel.org \ --cc=ocfs2-devel@oss.oracle.com \ --cc=sandeen@redhat.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.