42f559ed70
First two patches weren't marked for stable but are dependencies for
laters ones. The rest of patches was marked for stable but most likely
will be backported to 4.5+ only so we need to get them on our own.
An important fix is eea2fb4851e9d ("ovl: proper cleanup of workdir") as
it allows mounting overlayfs with dirty workdir, e.g. after power cut.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
35 lines
1.2 KiB
Diff
35 lines
1.2 KiB
Diff
From e1ff3dd1ae52cef5b5373c8cc4ad949c2c25a71c Mon Sep 17 00:00:00 2001
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From: Miklos Szeredi <mszeredi@redhat.com>
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Date: Mon, 5 Sep 2016 13:55:20 +0200
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Subject: [PATCH] ovl: fix workdir creation
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Workdir creation fails in latest kernel.
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Fix by allowing EOPNOTSUPP as a valid return value from
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vfs_removexattr(XATTR_NAME_POSIX_ACL_*). Upper filesystem may not support
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ACL and still be perfectly able to support overlayfs.
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Reported-by: Martin Ziegler <ziegler@uni-freiburg.de>
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Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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Fixes: c11b9fdd6a61 ("ovl: remove posix_acl_default from workdir")
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Cc: <stable@vger.kernel.org>
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---
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fs/overlayfs/super.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/fs/overlayfs/super.c
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+++ b/fs/overlayfs/super.c
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@@ -794,11 +794,11 @@ retry:
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goto out_dput;
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err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_DEFAULT);
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- if (err && err != -ENODATA)
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+ if (err && err != -ENODATA && err != -EOPNOTSUPP)
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goto out_dput;
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err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_ACCESS);
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- if (err && err != -ENODATA)
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+ if (err && err != -ENODATA && err != -EOPNOTSUPP)
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goto out_dput;
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/* Clear any inherited mode bits */
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