From: Amir Goldstein <amir73il@gmail.com>
To: "Darrick J . Wong" <darrick.wong@oracle.com>
Cc: Dave Chinner <david@fromorbit.com>,
Christoph Hellwig <hch@lst.de>,
linux-xfs@vger.kernel.org,
Olga Kornievskaia <olga.kornievskaia@gmail.com>,
Luis Henriques <lhenriques@suse.com>,
Al Viro <viro@zeniv.linux.org.uk>,
linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org,
ceph-devel@vger.kernel.org, linux-nfs@vger.kernel.org,
linux-cifs@vger.kernel.org
Subject: [PATCH v3 10/13] cifs: copy_file_range needs to strip setuid bits and update timestamps
Date: Wed, 29 May 2019 20:43:14 +0300 [thread overview]
Message-ID: <20190529174318.22424-11-amir73il@gmail.com> (raw)
In-Reply-To: <20190529174318.22424-1-amir73il@gmail.com>
cifs has both source and destination inodes locked throughout the copy.
Like ->write_iter(), we update mtime and strip setuid bits of destination
file before copy and like ->read_iter(), we update atime of source file
after copy.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
---
fs/cifs/cifsfs.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index c65823270313..ab6c5c24146d 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1096,6 +1096,10 @@ ssize_t cifs_file_copychunk_range(unsigned int xid,
goto out;
}
+ rc = -EOPNOTSUPP;
+ if (!target_tcon->ses->server->ops->copychunk_range)
+ goto out;
+
/*
* Note: cifs case is easier than btrfs since server responsible for
* checks for proper open modes and file type and if it wants
@@ -1107,11 +1111,12 @@ ssize_t cifs_file_copychunk_range(unsigned int xid,
/* should we flush first and last page first */
truncate_inode_pages(&target_inode->i_data, 0);
- if (target_tcon->ses->server->ops->copychunk_range)
+ rc = file_modified(dst_file);
+ if (!rc)
rc = target_tcon->ses->server->ops->copychunk_range(xid,
smb_file_src, smb_file_target, off, len, destoff);
- else
- rc = -EOPNOTSUPP;
+
+ file_accessed(src_file);
/* force revalidate of size and timestamps of target file now
* that target is updated on the server
--
2.17.1
next prev parent reply other threads:[~2019-05-29 17:43 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-29 17:43 [PATCH v3 00/13] Fixes for major copy_file_range() issues Amir Goldstein
2019-05-29 17:43 ` [PATCH v3 01/13] vfs: introduce generic_copy_file_range() Amir Goldstein
2019-05-29 17:43 ` [PATCH v3 02/13] vfs: no fallback for ->copy_file_range Amir Goldstein
2019-05-29 17:43 ` [PATCH v3 03/13] vfs: introduce generic_file_rw_checks() Amir Goldstein
2019-05-29 17:43 ` [PATCH v3 04/13] vfs: remove redundant checks from generic_remap_checks() Amir Goldstein
2019-05-29 18:23 ` Darrick J. Wong
2019-05-29 17:43 ` [PATCH v3 05/13] vfs: add missing checks to copy_file_range Amir Goldstein
2019-05-29 18:24 ` Darrick J. Wong
2019-05-29 17:43 ` [PATCH v3 06/13] vfs: introduce file_modified() helper Amir Goldstein
2019-05-29 18:27 ` Darrick J. Wong
2019-05-29 19:08 ` Amir Goldstein
2019-05-29 19:23 ` Amir Goldstein
2019-05-29 21:41 ` Dave Chinner
2019-05-29 17:43 ` [PATCH v3 07/13] xfs: use " Amir Goldstein
2019-05-29 18:31 ` Darrick J. Wong
2019-05-29 19:10 ` Amir Goldstein
2019-05-29 19:13 ` Darrick J. Wong
2019-05-29 17:43 ` [PATCH v3 08/13] vfs: copy_file_range needs to strip setuid bits and update timestamps Amir Goldstein
2019-05-29 18:33 ` Darrick J. Wong
2019-05-29 21:08 ` Amir Goldstein
2019-05-29 17:43 ` [PATCH v3 09/13] ceph: " Amir Goldstein
2019-05-29 19:43 ` Amir Goldstein
2019-05-29 17:43 ` Amir Goldstein [this message]
2019-05-29 19:36 ` [PATCH v3 10/13] cifs: " Amir Goldstein
2019-05-29 17:43 ` [PATCH v3 11/13] fuse: " Amir Goldstein
2019-05-29 19:37 ` Amir Goldstein
2019-05-29 20:07 ` Miklos Szeredi
2019-05-29 17:43 ` [PATCH v3 12/13] nfs: " Amir Goldstein
2019-05-29 19:34 ` Amir Goldstein
2019-05-29 20:02 ` Trond Myklebust
2019-05-29 21:00 ` Amir Goldstein
2019-05-29 17:43 ` [PATCH v3 13/13] vfs: allow copy_file_range to copy across devices Amir Goldstein
2019-05-29 20:09 ` Olga Kornievskaia
2019-05-29 21:03 ` Amir Goldstein
2019-06-03 20:39 ` Olga Kornievskaia
2019-06-04 4:11 ` Amir Goldstein
2019-05-29 17:43 ` [PATCH v3 14/13] man-pages: copy_file_range updates Amir Goldstein
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