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Alex Elder
c22f11f561
There is code in libxcmd that sets up a table of mount points and directories that may be subject to quota enforcement. If any entry in the mount table (/proc/self/mounts) is inaccessible or has any other problems, libxcmd exits. We have encountered mtab entries that appear to be artifacts from autoumount that, when parsed for getmntent(), return paths in the mnt_fsname field that do not exist. Such entries tend to have the text " (deleted)" appended to a legitimate pathname (although the space character is expanded to \040, as documented in getmntent(3)). The xfs_quota command supports the ability to specify an alternate mount table file, so this test makes use of that feature to exercise the problem. The test simply uses xfs_quota to print the current set of paths, providing an alternate mount table file. First it does so with a copy of the current mount table (which is assumed OK), then an extra bogus entry (very much like what has been seen in the wild) is appended to the mount table, and runs the xfs_quota command again. It does this with no mount options, as well as with user, group, and project quota options enabled. (Given the current state of the code however, only one of these is required.) Signed-off-by: Alex Elder <aelder@sgi.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
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3 lines
44 B
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