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configure: Add bdev_disk_changed() wrapper

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Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
This commit is contained in:
Robert Baldyga 2020-12-11 22:11:35 +01:00
parent d9ea8d3e32
commit 48c3598ef5
3 changed files with 43 additions and 4 deletions
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39
configure.d/1_reread_partitions.conf Normal file
View File

@ -0,0 +1,39 @@
#!/bin/bash
#
# Copyright(c) 2012-2020 Intel Corporation
# SPDX-License-Identifier: BSD-3-Clause-Clear
#
. $(dirname $3)/conf_framework
check() {
cur_name=$(basename $2)
config_file_path=$1
if compile_module $cur_name "bdev_disk_changed(NULL, false);" "linux/genhd.h"
then
echo $cur_name "1" >> $config_file_path
else
echo $cur_name "2" >> $config_file_path
fi
}
apply() {
case "$1" in
"1")
add_function "
static inline void cas_reread_partitions(struct block_device *bdev)
{
bdev_disk_changed(bdev, false);
}" ;;
"2")
add_function "
static inline void cas_reread_partitions(struct block_device *bdev)
{
ioctl_by_bdev(bdev, BLKRRPART, (unsigned long)NULL);
}" ;;
*)
exit 1
esac
}
conf_run $@

2
modules/cas_cache/layer_cache_management.c
View File

@ -1824,7 +1824,7 @@ static void init_instance_complete(struct _cache_mngt_attach_context *ctx,
/* If we deal with whole device, reread partitions */
if (bdev->bd_contains == bdev)
ioctl_by_bdev(bdev, BLKRRPART, (unsigned long)NULL);
cas_reread_partitions(bdev);
/* Set other back information */
name = block_dev_get_elevator_name(

6
modules/cas_disk/exp_obj.c
View File

@ -267,7 +267,7 @@ static int _casdsk_exp_obj_hide_parts(struct casdsk_disk *dsk)
gdsk->disk_name);
/* Try restore previous partitions by rescaning */
ioctl_by_bdev(bd, BLKRRPART, (unsigned long) NULL);
cas_reread_partitions(bd);
return -EINVAL;
}
}
@ -280,7 +280,7 @@ static int _casdsk_exp_obj_hide_parts(struct casdsk_disk *dsk)
gdsk->flags &= ~_casdsk_flags;
gdsk->minors = 1;
/* Rescan partitions */
ioctl_by_bdev(bd, BLKRRPART, (unsigned long) NULL);
cas_reread_partitions(bd);
return 0;
}
@ -325,7 +325,7 @@ static void _casdsk_exp_obj_clear_dev_t(struct casdsk_disk *dsk)
/* Restore previous configuration of bottom disk */
gdsk->minors = dsk->gd_minors;
gdsk->flags |= dsk->gd_flags;
ioctl_by_bdev(bdev, BLKRRPART, (unsigned long) NULL);
cas_reread_partitions(bdev);
}
}