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btrfs-progs: tests/nullb fix kernel support check 

I have a setup where null_blk is not a module but is built-in, so to check
if the kernel supports null_blk, use 'modinfo -n'.

Also fix a comment.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain 2023-05-02 19:39:34 +08:00 committed by David Sterba
parent 9c9805869e
commit 2d872fec8c
1 changed files with 3 additions and 3 deletions
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6
tests/nullb
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@ -8,7 +8,7 @@
# - load required modules and mount configfs
#
# nullb create [-s size] [-z zonesize]
# - create a new device with given sizes, allocating the first free indes, #
# - create a new device with given sizes, allocating the first free index,
# device is /dev/nullb$index
#
# nullb ls
@ -51,8 +51,8 @@ function _dbg() {
}
function _check_setup() {
if ! grep -q null_blk /proc/modules; then
_error "module not loaded"
if ! modinfo -n null_blk > /dev/null; then
_error "module not compiled/loaded"
fi
if ! grep -q configfs /proc/filesystems; then
_error "configfs not mounted"