open-cas-linux/configure.d/1_bio_max_vecs.conf
Gal Hammer 4ed8a59402 configure/bio_max_vecs: adapt to kernel 5.12
The bio_alloc_bioset() function now BUG() if trying to allocate a bio
with more than BIO_MAX_VECS vectors.

A no-limit value (-1) is defined in order not to change old kernels'
behaviour.

Signed-off-by: Gal Hammer <gal.hammer@huawei.com>
Signed-off-by: Shai Fultheim <shai.fultheim@huawei.com>
2022-03-08 16:06:03 +02:00

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#!/bin/bash
#
# Copyright(c) 2022 Intel Corporation
# SPDX-License-Identifier: BSD-3-Clause
#
. $(dirname $3)/conf_framework
check() {
cur_name=$(basename $2)
config_file_path=$1
if compile_module $cur_name "int n; n = BIO_MAX_VECS" "linux/bio.h"
then
echo $cur_name 1 >> $config_file_path
else
echo $cur_name 2 >> $config_file_path
fi
}
apply() {
case "$1" in
"1")
;;
"2")
add_define "BIO_MAX_VECS ((uint32_t)(-1))" ;;
*)
exit 1
esac
}
conf_run $@