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Subject: [PATCH v2 0/2] AFS metadata xattr fixes
From: David Howells <dhowells@redhat.com>
To: linux-afs@lists.infradead.org
Cc: Gaja Sophie Peters <gaja.peters@math.uni-hamburg.de>,
dhowells@redhat.com,
Gaja Sophie Peters <gaja.peters@math.uni-hamburg.de>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Date: Thu, 11 Mar 2021 23:06:24 +0000
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| Series |
AFS metadata xattr fixes
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expand
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Here's a pair of fixes for AFS. (1) Fix an oops in AFS that can be triggered by accessing one of the afs.yfs.* xattrs against a yfs server[1][2] - for instance by "cp -a" or "rsync -X". These try and copy all of the xattrs. They should pay attention to the list in /etc/xattr.conf, but cp doesn't on Ubuntu and rsync doesn't seem to on Ubuntu or Fedora. xattr.conf has been modified upstream[3], but a new version hasn't been cut yet. I've logged a bug against rsync for the problem there[4]. (2) Stop listing "afs.*" xattrs[6], particularly ACL ones[8]. This removes them from the list returned by listxattr(), but they're still available to get/set. The patches can be found here: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=afs-fixes Changes: ver #2: - Hide all of the afs.* xattrs, not just the ACL ones[7]. David Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003498.html [1] Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003501.html [2] Link: https://git.savannah.nongnu.org/cgit/attr.git/commit/?id=74da517cc655a82ded715dea7245ce88ebc91b98 [3] Link: https://github.com/WayneD/rsync/issues/163 [4] Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003516.html [5] Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003524.html [6] Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003565.html # v1 Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003568.html [7] Link: http://lists.infradead.org/pipermail/linux-afs/2021-March/003570.html [8] --- David Howells (2): afs: Fix accessing YFS xattrs on a non-YFS server afs: Stop listxattr() from listing "afs.*" attributes fs/afs/dir.c | 1 - fs/afs/file.c | 1 - fs/afs/inode.c | 1 - fs/afs/internal.h | 1 - fs/afs/mntpt.c | 1 - fs/afs/xattr.c | 23 ----------------------- 6 files changed, 28 deletions(-)