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ZTS: Add dirty dnode stress test

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Add a test for the dirty dnode SEEK_HOLE/SEEK_DATA bug described in
https://github.com/openzfs/zfs/issues/15526

The bug was fixed in https://github.com/openzfs/zfs/pull/15571 and
was backported to 2.2.2 and 2.1.14.  This test case is just to
make sure it does not come back.

seekflood.c originally written by Rob Norris.

Reviewed-by: Graham Perrin <grahamperrin@freebsd.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rob Norris <robn@despairlabs.com>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #15608
This commit is contained in:
Tony Hutter
2023-12-11 09:59:59 -08:00
committed by Brian Behlendorf
parent bc42a2fb54
commit 53a55390fb
6 changed files with 271 additions and 3 deletions
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tests/zfs-tests/include/libtest.shlib
+12
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@@ -3362,6 +3362,18 @@ function is_te_enabled
fi
}
# Return the number of CPUs (cross-platform)
function get_num_cpus
{
if is_linux ; then
grep -c '^processor' /proc/cpuinfo
elif is_freebsd; then
sysctl -n kern.smp.cpus
else
psrinfo | wc -l
fi
}
# Utility function to determine if a system has multiple cpus.
function is_mp
{