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Add a tunable to disable BRT support.

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Copy the disable parameter that FreeBSD implemented, and extend it to
work on Linux as well, until we're sure this is stable.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #15529
This commit is contained in:
Rich Ercolani
2023-11-16 14:35:22 -05:00
committed by GitHub
parent 5796e3a742
commit 03e9caaec0
11 changed files with 51 additions and 0 deletions
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tests/zfs-tests/include/libtest.shlib
+15
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@@ -3334,6 +3334,21 @@ function set_tunable_impl
esac
}
function save_tunable
{
[[ ! -d $TEST_BASE_DIR ]] && return 1
[[ -e $TEST_BASE_DIR/tunable-$1 ]] && return 2
echo "$(get_tunable """$1""")" > "$TEST_BASE_DIR"/tunable-"$1"
}
function restore_tunable
{
[[ ! -e $TEST_BASE_DIR/tunable-$1 ]] && return 1
val="$(cat $TEST_BASE_DIR/tunable-"""$1""")"
set_tunable64 "$1" "$val"
rm $TEST_BASE_DIR/tunable-$1
}
#
# Get a global system tunable
#