If xfs_io's utimes command cannot interpret the arguments that are
given to it, it will print out "Bad value for [am]time". Detect
when this happens and drop the file out of the test entirely.
This is particularly noticeable on 32-bit platforms and the largest
timestamp seconds supported by the filesystem is INT_MAX. In this
case, the maximum value we can cram into tv_sec is INT_MAX, and
there is no way to actually test setting a timestamp of INT_MAX + 1
to test the clamping.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Addition of fs-specific timestamp range checking was added
in 188d20bcd1eb ("vfs: Add file timestamp range support").
Add a check for whether the kernel supports the limits check
before running the associated test.
Based on an off-list discussion, we use a simpler interim approach
until fsinfo syscall would provide fs timestamp limits info.
This isn't perfect, but works for filesystems expiring in 2038.
Suggested-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
The test helps to validate clamping and mount behaviors
according to supported file system timestamp ranges.
Note that the test can fail on 32-bit systems for a
few file systems. This will be corrected when vfs is
transitioned to use 64-bit timestamps.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
Darrick J. Wong
Deepa Dinamani
Dave Chinner