mirror_zfs/cmd/zpool/zpool.d/dm-deps

#!/bin/sh
#
# 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 dependent (underlying) devices."
	exit
fi

dev="$VDEV_PATH"

# If the VDEV path is a symlink, resolve it to a real device
if [ -L "$dev" ] ; then
	dev=$(readlink "$dev")
fi

dev="${dev##*/}"
val=""
if [ -d "/sys/class/block/$dev/slaves" ] ; then
	# ls -C: output in columns, no newlines, two spaces (change to one)
	# shellcheck disable=SC2012
	val=$(ls -C "/sys/class/block/$dev/slaves" | tr -s '[:space:]' ' ')
fi

echo "dm-deps=$val"
Prebaked scripts for zpool status/iostat -c This patch updates the "zpool status/iostat -c" commands to only run "pre-baked" scripts from the /etc/zfs/zpool.d directory (or wherever you install to). The scripts can only be run from -c as an unprivileged user (unless the ZPOOL_SCRIPTS_AS_ROOT environment var is set by root). This was done to encourage scripts to be written is such a way that normal users can use them, and to be cautious. If your script needs to run a privileged command, consider adding the appropriate line in /etc/sudoers. See zpool(8) for an example of how to do this. The patch also allows the scripts to output custom column names. If the script outputs a line like: name=value then "name" is used for the column name, and "value" is its value. Multiple columns can be specified by outputting multiple lines. Column names and values can have spaces. If the value is empty, a dash (-) is printed instead. After all the "name=value" lines are read (if any), zpool will take the next the next line of output (if any) and print it without a column header. After that, no more lines will be processed. This can be useful for printing errors. Lastly, this patch also disables the -c option with the latency and request size histograms, since it produced awkward output and made the code harder to maintain. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Closes #5852 2017-04-21 19:27:04 +03:00			`#!/bin/sh`
			`#`
Remove unnecessary references to slavery The horrible effects of human slavery continue to impact society. The casual use of the term "slave" in computer software is an unnecessary reference to a painful human experience. This commit removes all possible references to the term "slave". Implementation notes: The zpool.d/slaves script is renamed to dm-deps, which uses the same terminology as `dmsetup deps`. References to the `/sys/class/block/$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 2020-06-11 03:07:59 +03:00			`# Show device mapper dependent / underlying devices. This is useful for`
			`# looking up the /dev/sd* devices associated with a dm or multipath device.`
Prebaked scripts for zpool status/iostat -c This patch updates the "zpool status/iostat -c" commands to only run "pre-baked" scripts from the /etc/zfs/zpool.d directory (or wherever you install to). The scripts can only be run from -c as an unprivileged user (unless the ZPOOL_SCRIPTS_AS_ROOT environment var is set by root). This was done to encourage scripts to be written is such a way that normal users can use them, and to be cautious. If your script needs to run a privileged command, consider adding the appropriate line in /etc/sudoers. See zpool(8) for an example of how to do this. The patch also allows the scripts to output custom column names. If the script outputs a line like: name=value then "name" is used for the column name, and "value" is its value. Multiple columns can be specified by outputting multiple lines. Column names and values can have spaces. If the value is empty, a dash (-) is printed instead. After all the "name=value" lines are read (if any), zpool will take the next the next line of output (if any) and print it without a column header. After that, no more lines will be processed. This can be useful for printing errors. Lastly, this patch also disables the -c option with the latency and request size histograms, since it produced awkward output and made the code harder to maintain. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Closes #5852 2017-04-21 19:27:04 +03:00			`#`

			`if [ "$1" = "-h" ] ; then`
Remove unnecessary references to slavery The horrible effects of human slavery continue to impact society. The casual use of the term "slave" in computer software is an unnecessary reference to a painful human experience. This commit removes all possible references to the term "slave". Implementation notes: The zpool.d/slaves script is renamed to dm-deps, which uses the same terminology as `dmsetup deps`. References to the `/sys/class/block/$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 2020-06-11 03:07:59 +03:00			`echo "Show device mapper dependent (underlying) devices."`
Prebaked scripts for zpool status/iostat -c This patch updates the "zpool status/iostat -c" commands to only run "pre-baked" scripts from the /etc/zfs/zpool.d directory (or wherever you install to). The scripts can only be run from -c as an unprivileged user (unless the ZPOOL_SCRIPTS_AS_ROOT environment var is set by root). This was done to encourage scripts to be written is such a way that normal users can use them, and to be cautious. If your script needs to run a privileged command, consider adding the appropriate line in /etc/sudoers. See zpool(8) for an example of how to do this. The patch also allows the scripts to output custom column names. If the script outputs a line like: name=value then "name" is used for the column name, and "value" is its value. Multiple columns can be specified by outputting multiple lines. Column names and values can have spaces. If the value is empty, a dash (-) is printed instead. After all the "name=value" lines are read (if any), zpool will take the next the next line of output (if any) and print it without a column header. After that, no more lines will be processed. This can be useful for printing errors. Lastly, this patch also disables the -c option with the latency and request size histograms, since it produced awkward output and made the code harder to maintain. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Closes #5852 2017-04-21 19:27:04 +03:00			`exit`
			`fi`

			`dev="$VDEV_PATH"`

			`# If the VDEV path is a symlink, resolve it to a real device`
			`if [ -L "$dev" ] ; then`
			`dev=$(readlink "$dev")`
			`fi`

Remove basename(1). Clean up/shorten some coreutils pipelines Basenames that remain, in cmd/zed/zed.d/statechange-led.sh: dev=$(basename "$(echo "$therest" \| awk '{print $(NF-1)}')") vdev=$(basename "$ZEVENT_VDEV_PATH") I don't wanna interfere with #11988 scripts/zfs-tests.sh: SINGLETESTFILE=$(basename "$SINGLETEST") tests/zfs-tests/tests/functional/cli_user/zfs_list/zfs_list.kshlib: ACTUAL=$(basename $dataset) ACTUAL=$(basename $dataset) tests/zfs-tests/tests/functional/cli_user/zpool_iostat/ zpool_iostat_-c_homedir.ksh: typeset USER_SCRIPT=$(basename "$USER_SCRIPT_FULL") tests/zfs-tests/tests/functional/cli_user/zpool_iostat/ zpool_iostat_-c_searchpath.ksh: typeset CMD_1=$(basename "$SCRIPT_1") typeset CMD_2=$(basename "$SCRIPT_2") tests/zfs-tests/tests/functional/cli_user/zpool_status/ zpool_status_-c_homedir.ksh: typeset USER_SCRIPT=$(basename "$USER_SCRIPT_FULL") tests/zfs-tests/tests/functional/cli_user/zpool_status/ zpool_status_-c_searchpath.ksh typeset CMD_1=$(basename "$SCRIPT_1") typeset CMD_2=$(basename "$SCRIPT_2") tests/zfs-tests/tests/functional/migration/migration.cfg: export BNAME=`basename $TESTFILE` tests/zfs-tests/tests/perf/perf.shlib: typeset logbase="$(get_perf_output_dir)/$(basename \ tests/zfs-tests/tests/perf/perf.shlib: typeset logbase="$(get_perf_output_dir)/$(basename \ These are potentially Of Directories, where basename is actually useful Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Closes #12652 2021-11-11 23:27:37 +03:00			`dev="${dev##*/}"`
Prebaked scripts for zpool status/iostat -c This patch updates the "zpool status/iostat -c" commands to only run "pre-baked" scripts from the /etc/zfs/zpool.d directory (or wherever you install to). The scripts can only be run from -c as an unprivileged user (unless the ZPOOL_SCRIPTS_AS_ROOT environment var is set by root). This was done to encourage scripts to be written is such a way that normal users can use them, and to be cautious. If your script needs to run a privileged command, consider adding the appropriate line in /etc/sudoers. See zpool(8) for an example of how to do this. The patch also allows the scripts to output custom column names. If the script outputs a line like: name=value then "name" is used for the column name, and "value" is its value. Multiple columns can be specified by outputting multiple lines. Column names and values can have spaces. If the value is empty, a dash (-) is printed instead. After all the "name=value" lines are read (if any), zpool will take the next the next line of output (if any) and print it without a column header. After that, no more lines will be processed. This can be useful for printing errors. Lastly, this patch also disables the -c option with the latency and request size histograms, since it produced awkward output and made the code harder to maintain. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Closes #5852 2017-04-21 19:27:04 +03:00			`val=""`
			`if [ -d "/sys/class/block/$dev/slaves" ] ; then`
Remove basename(1). Clean up/shorten some coreutils pipelines Basenames that remain, in cmd/zed/zed.d/statechange-led.sh: dev=$(basename "$(echo "$therest" \| awk '{print $(NF-1)}')") vdev=$(basename "$ZEVENT_VDEV_PATH") I don't wanna interfere with #11988 scripts/zfs-tests.sh: SINGLETESTFILE=$(basename "$SINGLETEST") tests/zfs-tests/tests/functional/cli_user/zfs_list/zfs_list.kshlib: ACTUAL=$(basename $dataset) ACTUAL=$(basename $dataset) tests/zfs-tests/tests/functional/cli_user/zpool_iostat/ zpool_iostat_-c_homedir.ksh: typeset USER_SCRIPT=$(basename "$USER_SCRIPT_FULL") tests/zfs-tests/tests/functional/cli_user/zpool_iostat/ zpool_iostat_-c_searchpath.ksh: typeset CMD_1=$(basename "$SCRIPT_1") typeset CMD_2=$(basename "$SCRIPT_2") tests/zfs-tests/tests/functional/cli_user/zpool_status/ zpool_status_-c_homedir.ksh: typeset USER_SCRIPT=$(basename "$USER_SCRIPT_FULL") tests/zfs-tests/tests/functional/cli_user/zpool_status/ zpool_status_-c_searchpath.ksh typeset CMD_1=$(basename "$SCRIPT_1") typeset CMD_2=$(basename "$SCRIPT_2") tests/zfs-tests/tests/functional/migration/migration.cfg: export BNAME=`basename $TESTFILE` tests/zfs-tests/tests/perf/perf.shlib: typeset logbase="$(get_perf_output_dir)/$(basename \ tests/zfs-tests/tests/perf/perf.shlib: typeset logbase="$(get_perf_output_dir)/$(basename \ These are potentially Of Directories, where basename is actually useful Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Closes #12652 2021-11-11 23:27:37 +03:00			`# ls -C: output in columns, no newlines, two spaces (change to one)`
			`# shellcheck disable=SC2012`
			`val=$(ls -C "/sys/class/block/$dev/slaves" \| tr -s '[:space:]' ' ')`
Prebaked scripts for zpool status/iostat -c This patch updates the "zpool status/iostat -c" commands to only run "pre-baked" scripts from the /etc/zfs/zpool.d directory (or wherever you install to). The scripts can only be run from -c as an unprivileged user (unless the ZPOOL_SCRIPTS_AS_ROOT environment var is set by root). This was done to encourage scripts to be written is such a way that normal users can use them, and to be cautious. If your script needs to run a privileged command, consider adding the appropriate line in /etc/sudoers. See zpool(8) for an example of how to do this. The patch also allows the scripts to output custom column names. If the script outputs a line like: name=value then "name" is used for the column name, and "value" is its value. Multiple columns can be specified by outputting multiple lines. Column names and values can have spaces. If the value is empty, a dash (-) is printed instead. After all the "name=value" lines are read (if any), zpool will take the next the next line of output (if any) and print it without a column header. After that, no more lines will be processed. This can be useful for printing errors. Lastly, this patch also disables the -c option with the latency and request size histograms, since it produced awkward output and made the code harder to maintain. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Closes #5852 2017-04-21 19:27:04 +03:00			`fi`

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/$dev/slaves` directory remain. This directory name is determined by the Linux kernel. Although `dmsetup deps` provides the same information, it unfortunately requires elevated privileges, whereas the `/sys/...` directory is world-readable. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Matthew Ahrens <mahrens@delphix.com> Closes #10435 2020-06-11 03:07:59 +03:00			`echo "dm-deps=$val"`