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Remove unnecessary references to slavery 

The horrible effects of human slavery continue to impact society.  The
casual use of the term "slave" in computer software is an unnecessary
reference to a painful human experience.

This commit removes all possible references to the term "slave".

Implementation notes:

The zpool.d/slaves script is renamed to dm-deps, which uses the same
terminology as `dmsetup deps`.

References to the `/sys/class/block/$dev/slaves` directory remain.  This
directory name is determined by the Linux kernel.  Although
`dmsetup deps` provides the same information, it unfortunately requires
elevated privileges, whereas the `/sys/...` directory is world-readable.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #10435
This commit is contained in:
Matthew Ahrens 2020-06-10 17:07:59 -07:00 committed by GitHub
parent feff3f69fc
commit f66434268c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 42 additions and 48 deletions
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4
cmd/zpool/Makefile.am
View File

@ -36,6 +36,7 @@ zpoolexecdir = $(zfsexecdir)/zpool.d
EXTRA_DIST = zpool.d/README
dist_zpoolexec_SCRIPTS = \
zpool.d/dm-deps \
zpool.d/enc \
zpool.d/encdev \
zpool.d/fault_led \
@ -50,7 +51,6 @@ dist_zpoolexec_SCRIPTS = \
zpool.d/serial \
zpool.d/ses \
zpool.d/size \
zpool.d/slaves \
zpool.d/slot \
zpool.d/smart \
zpool.d/smartx \
@ -80,6 +80,7 @@ dist_zpoolexec_SCRIPTS = \
zpool.d/test_ended
zpoolconfdefaults = \
dm-deps \
enc \
encdev \
fault_led \
@ -94,7 +95,6 @@ zpoolconfdefaults = \
serial \
ses \
size \
slaves \
slot \
smart \
smartx \

11
cmd/zpool/zpool.d/slaves → cmd/zpool/zpool.d/dm-deps
View File

@ -1,14 +1,11 @@
#!/bin/sh
#
# Show device mapper slave devices. This is useful for looking up the
# /dev/sd* devices associated with a dm or multipath device. For example:
#
# $ ls /sys/block/dm-113/slaves/
# sddt sdjw
# Show device mapper dependent / underlying devices. This is useful for
# looking up the /dev/sd* devices associated with a dm or multipath device.
#
if [ "$1" = "-h" ] ; then
echo "Show device mapper slave devices."
echo "Show device mapper dependent (underlying) devices."
exit
fi
@ -29,4 +26,4 @@ if [ -d "/sys/class/block/$dev/slaves" ] ; then
val=$(echo "$val" | sed -r 's/[[:blank:]]+/ /g')
fi
echo "slaves=$val"
echo "dm-deps=$val"

26
contrib/dracut/02zfsexpandknowledge/module-setup.sh.in
View File

@ -74,10 +74,10 @@ check() {
local blockdevs
local fstype
local majmin
local _slavedev
local _slavedevname
local _slavedevtype
local _slavemajmin
local _depdev
local _depdevname
local _depdevtype
local _depmajmin
local _dev
if [[ $hostonly ]]; then
@ -108,15 +108,15 @@ if [[ $hostonly ]]; then
host_fs_types["$dev"]="$fstype"
majmin=$(get_maj_min "$dev")
if [[ -d /sys/dev/block/$majmin/slaves ]] ; then
for _slavedev in /sys/dev/block/$majmin/slaves/*; do
[[ -f $_slavedev/dev ]] || continue
_slavedev=/dev/$(basename "$_slavedev")
_slavedevname=$(udevadm info --query=property --name="$_slavedev" | grep "^DEVNAME=" | sed 's|^DEVNAME=||')
_slavedevtype=$(get_devtype "$_slavedevname")
_slavemajmin=$(get_maj_min "$_slavedevname")
dinfo "zfsexpandknowledge: slave block device backing ZFS dataset $mp: $_slavedevname"
array_contains "$_slavedevname" "${host_devs[@]}" || host_devs+=("$_slavedevname")
host_fs_types["$_slavedevname"]="$_slavedevtype"
for _depdev in /sys/dev/block/$majmin/slaves/*; do
[[ -f $_depdev/dev ]] || continue
_depdev=/dev/$(basename "$_depdev")
_depdevname=$(udevadm info --query=property --name="$_depdev" | grep "^DEVNAME=" | sed 's|^DEVNAME=||')
_depdevtype=$(get_devtype "$_depdevname")
_depmajmin=$(get_maj_min "$_depdevname")
dinfo "zfsexpandknowledge: underlying block device backing ZFS dataset $mp: $_depdevname"
array_contains "$_depdevname" "${host_devs[@]}" || host_devs+=("$_depdevname")
host_fs_types["$_depdevname"]="$_depdevtype"
done
fi
done

1
include/os/freebsd/spl/sys/dkio.h
View File

@ -69,7 +69,6 @@ struct dk_cinfo {
uint_t dki_vec; /* interrupt vector */
char dki_dname[DK_DEVLEN]; /* drive name (no unit #) */
uint_t dki_unit; /* unit number */
uint_t dki_slave; /* slave number */
ushort_t dki_partition; /* partition number */
ushort_t dki_maxtransfer; /* max. transfer size in DEV_BSIZE */
};

1
lib/libspl/include/sys/dkio.h
View File

@ -59,7 +59,6 @@ struct dk_cinfo {
uint_t dki_vec; /* interrupt vector */
char dki_dname[DK_DEVLEN]; /* drive name (no unit #) */
uint_t dki_unit; /* unit number */
uint_t dki_slave; /* slave number */
ushort_t dki_partition; /* partition number */
ushort_t dki_maxtransfer; /* max. transfer size in DEV_BSIZE */
};

6
lib/libzutil/os/linux/zutil_device_path_os.c
View File

@ -203,7 +203,11 @@ dm_get_underlying_path(const char *dm_name)
if (dp == NULL)
goto end;
/* Return first sd* entry in /sys/block/dm-N/slaves/ */
/*
* Return first entry (that isn't itself a directory) in the
* directory containing device-mapper dependent (underlying)
* devices.
*/
while ((ep = readdir(dp))) {
if (ep->d_type != DT_DIR) { /* skip "." and ".." dirs */
size = asprintf(&path, "/dev/%s", ep->d_name);

17
man/man8/zpool.8
View File

@ -431,18 +431,13 @@ option.
U13 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
U14 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
# zpool iostat -vc slaves
# zpool iostat -vc size
capacity operations bandwidth
pool alloc free read write read write slaves
---------- ----- ----- ----- ----- ----- ----- ---------
tank 20.4G 7.23T 26 152 20.7M 21.6M
mirror 20.4G 7.23T 26 152 20.7M 21.6M
U1 - - 0 31 1.46K 20.6M sdb sdff
U10 - - 0 1 3.77K 13.3K sdas sdgw
U11 - - 0 1 288K 13.3K sdat sdgx
U12 - - 0 1 78.4K 13.3K sdau sdgy
U13 - - 0 1 128K 13.3K sdav sdgz
U14 - - 0 1 63.2K 13.3K sdfk sdg
pool alloc free read write read write size
---------- ----- ----- ----- ----- ----- ----- ----
rpool 14.6G 54.9G 4 55 250K 2.69M
sda1 14.6G 54.9G 4 55 250K 2.69M 70G
---------- ----- ----- ----- ----- ----- ----- ----
.Ed
.El
.Sh ENVIRONMENT VARIABLES

22
tests/zfs-tests/include/blkdev.shlib
View File

@ -336,25 +336,25 @@ function on_off_disk # disk state{online,offline} host
if [[ $state == "offline" ]] && ( is_mpath_device $disk ); then
dm_name="$(readlink $DEV_DSKDIR/$disk \
| nawk -F / '{print $2}')"
slave="$(ls /sys/block/${dm_name}/slaves \
dep="$(ls /sys/block/${dm_name}/slaves \
| nawk '{print $1}')"
while [[ -n $slave ]]; do
while [[ -n $dep ]]; do
#check if disk is online
lsscsi | egrep $slave > /dev/null
lsscsi | egrep $dep > /dev/null
if (($? == 0)); then
slave_dir="/sys/block/${dm_name}"
slave_dir+="/slaves/${slave}/device"
ss="${slave_dir}/state"
sd="${slave_dir}/delete"
dep_dir="/sys/block/${dm_name}"
dep_dir+="/slaves/${dep}/device"
ss="${dep_dir}/state"
sd="${dep_dir}/delete"
log_must eval "echo 'offline' > ${ss}"
log_must eval "echo '1' > ${sd}"
lsscsi | egrep $slave > /dev/null
lsscsi | egrep $dep > /dev/null
if (($? == 0)); then
log_fail "Offlining" \
"$disk failed"
fi
fi
slave="$(ls /sys/block/$dm_name/slaves \
dep="$(ls /sys/block/$dm_name/slaves \
2>/dev/null | nawk '{print $1}')"
done
elif [[ $state == "offline" ]] && ( is_real_device $disk ); then
@ -380,9 +380,9 @@ function on_off_disk # disk state{online,offline} host
if is_mpath_device $disk; then
dm_name="$(readlink $DEV_DSKDIR/$disk \
| nawk -F / '{print $2}')"
slave="$(ls /sys/block/$dm_name/slaves \
dep="$(ls /sys/block/$dm_name/slaves \
| nawk '{print $1}')"
lsscsi | egrep $slave > /dev/null
lsscsi | egrep $dep > /dev/null
if (($? != 0)); then
log_fail "Onlining $disk failed"
fi