From: Amir Goldstein <amir73il@gmail.com>
To: "Darrick J . Wong" <djwong@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>,
Brian Foster <bfoster@redhat.com>, Christoph Hellwig <hch@lst.de>,
Luis Chamberlain <mcgrof@kernel.org>,
Adam Manzanares <a.manzanares@samsung.com>,
Tyler Hicks <code@tyhicks.com>,
linux-xfs@vger.kernel.org, fstests@vger.kernel.org,
Jeffrey Mitchell <jeffrey.mitchell@starlab.io>
Subject: [PATCH 5.10 CANDIDATE 2/8] xfs: set inode size after creating symlink
Date: Wed, 1 Jun 2022 13:45:41 +0300 [thread overview]
Message-ID: <20220601104547.260949-3-amir73il@gmail.com> (raw)
In-Reply-To: <20220601104547.260949-1-amir73il@gmail.com>
From: Jeffrey Mitchell <jeffrey.mitchell@starlab.io>
commit 8aa921a95335d0a8c8e2be35a44467e7c91ec3e4 upstream.
When XFS creates a new symlink, it writes its size to disk but not to the
VFS inode. This causes i_size_read() to return 0 for that symlink until
it is re-read from disk, for example when the system is rebooted.
I found this inconsistency while protecting directories with eCryptFS.
The command "stat path/to/symlink/in/ecryptfs" will report "Size: 0" if
the symlink was created after the last reboot on an XFS root.
Call i_size_write() in xfs_symlink()
Signed-off-by: Jeffrey Mitchell <jeffrey.mitchell@starlab.io>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
---
fs/xfs/xfs_symlink.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index 8e88a7ca387e..8d3abf06c54f 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c
@@ -300,6 +300,7 @@ xfs_symlink(
}
ASSERT(pathlen == 0);
}
+ i_size_write(VFS_I(ip), ip->i_d.di_size);
/*
* Create the directory entry for the symlink.
--
2.25.1
next prev parent reply other threads:[~2022-06-01 10:46 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-01 10:45 [PATCH 5.10 CANDIDATE 0/8] xfs stable candidate patches for 5.10.y (part 2) Amir Goldstein
2022-06-01 10:45 ` [PATCH 5.10 CANDIDATE 1/8] xfs: fix up non-directory creation in SGID directories Amir Goldstein
2022-06-02 0:52 ` Dave Chinner
2022-06-02 4:13 ` Amir Goldstein
2022-06-02 10:31 ` Christian Brauner
2022-06-08 8:25 ` Amir Goldstein
2022-06-08 8:26 ` Christoph Hellwig
2022-06-08 9:15 ` Amir Goldstein
2022-06-02 10:17 ` Christian Brauner
2022-06-01 10:45 ` Amir Goldstein [this message]
2022-06-01 10:45 ` [PATCH 5.10 CANDIDATE 3/8] xfs: sync lazy sb accounting on quiesce of read-only mounts Amir Goldstein
2022-06-01 10:45 ` [PATCH 5.10 CANDIDATE 4/8] xfs: fix chown leaking delalloc quota blocks when fssetxattr fails Amir Goldstein
2022-06-01 10:45 ` [PATCH 5.10 CANDIDATE 5/8] xfs: fix incorrect root dquot corruption error when switching group/project quota types Amir Goldstein
2022-06-01 10:45 ` [PATCH 5.10 CANDIDATE 6/8] xfs: restore shutdown check in mapped write fault path Amir Goldstein
2022-06-01 10:45 ` [PATCH 5.10 CANDIDATE 7/8] xfs: consider shutdown in bmapbt cursor delete assert Amir Goldstein
2022-06-02 0:38 ` Dave Chinner
2022-06-02 4:24 ` Amir Goldstein
2022-06-02 5:15 ` Dave Chinner
2022-06-02 5:55 ` Amir Goldstein
2022-06-03 9:39 ` Amir Goldstein
2022-06-01 10:45 ` [PATCH 5.10 CANDIDATE 8/8] xfs: force log and push AIL to clear pinned inodes when aborting mount Amir Goldstein
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