Marcus Meissner
c1e9200334
fate#318413 OBS-URL: https://build.opensuse.org/request/show/294273 OBS-URL: https://build.opensuse.org/package/show/Base:System/lvm2?expand=0&rev=128
205 lines
6.3 KiB
Diff
205 lines
6.3 KiB
Diff
From 67a7538475e9e292103a80fed8cff8ab380314a2 Mon Sep 17 00:00:00 2001
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From: Lidong Zhong <lzhong@suse.com>
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Date: Fri, 6 Mar 2015 18:35:04 +0800
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Subject: [Patch v2] fsadm: add support for btrfs
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Check: mount the device first and then run`btrfs filesystem scrub start
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-B` command
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Reisze: find the mount point first and resize the filesystem after get
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the device id since there are maybe several devices underneath btrfs
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filesystem
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---
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Hi David,
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This is the patch I sent to upstream. It works fine based on our test.
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Please shed your light and thank you for taking time to review.
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Regards,
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Lidong
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scripts/fsadm.sh | 104 ++++++++++++++++++++++++++++++++++++++++++++++---------
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1 file changed, 88 insertions(+), 16 deletions(-)
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diff --git a/scripts/fsadm.sh b/scripts/fsadm.sh
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index f4ea796..765f9dc 100755
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--- a/scripts/fsadm.sh
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+++ b/scripts/fsadm.sh
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@@ -22,6 +22,7 @@
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# ext2/ext3/ext4: resize2fs, tune2fs
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# reiserfs: resize_reiserfs, reiserfstune
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# xfs: xfs_growfs, xfs_info
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+# btrfs: btrfs
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#
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# Return values:
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# 0 success
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@@ -56,6 +57,7 @@ FSCK=fsck
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XFS_CHECK=xfs_check
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# XFS_REPAIR -n is used when XFS_CHECK is not found
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XFS_REPAIR=xfs_repair
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+BTRFS=btrfs
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# user may override lvm location by setting LVM_BINARY
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LVM=${LVM_BINARY:-lvm}
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@@ -75,6 +77,9 @@ BLOCKCOUNT=
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MOUNTPOINT=
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MOUNTED=
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REMOUNT=
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+FINDMNT=
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+UUID=
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+BTRFS_DEVID=
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PROCMOUNTS="/proc/mounts"
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NULL="$DM_DEV_DIR/null"
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@@ -147,7 +152,7 @@ cleanup() {
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export _FSADM_YES _FSADM_EXTOFF
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unset FSADM_RUNNING
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test -n "$LVM_BINARY" && PATH=$_SAVEPATH
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- dry exec "$LVM" lvresize $VERB $FORCE -r -L${NEWSIZE}b "$VOLUME_ORIG"
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+ dry exec "$LVM" lvresize $VERB $FORCE -r -L${NEWSIZE}b "$VOLUME"
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fi
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# error exit status for break
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@@ -198,27 +203,62 @@ detect_fs() {
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verbose "\"$FSTYPE\" filesystem found on \"$VOLUME\""
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}
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+check_findmnt() {
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+ FINDMNT=$(which findmnt 2>$NULL)
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+ test -n "$FINDMNT"
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+}
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+
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+detect_fs_uuid() {
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+ UUID=$($BLKID -o value -c $NULL -s UUID "$VOLUME" 2>$NULL)
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+ test -n "$UUID"
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+}
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+
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+#find the mountpoint of this device
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+detect_mounted_findmnt() {
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+ local TMP
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+ local STR_IFS=$IFS
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+ IFS=" $(echo -n -e '\t')"
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+
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+ read -r TMP<<EOF
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+$($FINDMNT -nuP -o TARGET,UUID 2>$NULL | $GREP "$UUID")
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+EOF
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+
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+ TMP=${TMP##*TARGET=\"}
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+ TMP=${TMP%%\"*}
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+ MOUNTED=$TMP
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+ test -n "$MOUNTED"
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+
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+ IFS=$STR_IFS
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+}
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+
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# check if the given device is already mounted and where
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# FIXME: resolve swap usage and device stacking
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detect_mounted() {
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- test -e "$PROCMOUNTS" || error "Cannot detect mounted device \"$VOLUME\""
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+ if test "$FSTYPE" = "btrfs" ; then
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+ check_findmnt || error "Need 'findmnt' utility to work with btrfs filesystem"
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+ detect_fs_uuid || verbose "Can't get fs UUID from \"$VOLUME\" volume"
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+ detect_mounted_findmnt
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+
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+ else
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+ test -e "$PROCMOUNTS" || error "Cannot detect mounted device \"$VOLUME\""
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- MOUNTED=$("$GREP" "^$VOLUME[ \t]" "$PROCMOUNTS")
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+ MOUNTED=$("$GREP" "^$VOLUME[ \t]" "$PROCMOUNTS")
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- # for empty string try again with real volume name
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- test -z "$MOUNTED" && MOUNTED=$("$GREP" "^$RVOLUME[ \t]" "$PROCMOUNTS")
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+ # for empty string try again with real volume name
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+ test -z "$MOUNTED" && MOUNTED=$("$GREP" "^$RVOLUME[ \t]" "$PROCMOUNTS")
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- # cut device name prefix and trim everything past mountpoint
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- # echo translates \040 to spaces
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- MOUNTED=${MOUNTED#* }
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- MOUNTED=$(echo -n -e ${MOUNTED%% *})
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+ # cut device name prefix and trim everything past mountpoint
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+ # echo translates \040 to spaces
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+ MOUNTED=${MOUNTED#* }
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+ MOUNTED=$(echo -n -e ${MOUNTED%% *})
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- # for systems with different device names - check also mount output
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- if test -z "$MOUNTED" ; then
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- MOUNTED=$(LC_ALL=C "$MOUNT" | "$GREP" "^$VOLUME[ \t]")
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- test -z "$MOUNTED" && MOUNTED=$(LC_ALL=C "$MOUNT" | "$GREP" "^$RVOLUME[ \t]")
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- MOUNTED=${MOUNTED##* on }
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- MOUNTED=${MOUNTED% type *} # allow type in the mount name
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+ # for systems with different device names - check also mount output
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+ if test -z "$MOUNTED" ; then
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+ MOUNTED=$(LC_ALL=C "$MOUNT" | "$GREP" "^$VOLUME[ \t]")
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+ test -z "$MOUNTED" && MOUNTED=$(LC_ALL=C "$MOUNT" | "$GREP" "^$RVOLUME[ \t]")
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+ MOUNTED=${MOUNTED##* on }
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+ MOUNTED=${MOUNTED% type *} # allow type in the mount name
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+ fi
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fi
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test -n "$MOUNTED"
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@@ -368,6 +408,31 @@ resize_xfs() {
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fi
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}
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+########################
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+# Resize btrfs filesystem
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+# - mounted for upsize/downsize
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+# - cannot resize when unmounted
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+########################
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+resize_btrfs() {
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+ detect_mounted
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+ MOUNTPOINT=$MOUNTED
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+ if [ -z "$MOUNTED" ]; then
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+ MOUNTPOINT=$TEMPDIR
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+ temp_mount || error "Cannot mount Btrfs filesystem"
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+ fi
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+
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+ verbose "Parsing $BTRFS filesystem show \"$MOUNTPOINT\""
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+ for i in $(LC_ALL=C "$BTRFS" filesystem show "$MOUNTPOINT"); do
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+ case "$i" in
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+ *"$VOLUME"*) BTRFS_DEVID=${i##*devid};;
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+ esac
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+ done
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+ BTRFS_DEVID=${BTRFS_DEVID%%size*}
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+ BTRFS_DEVID=$(echo $BTRFS_DEVID|sed 's/^[ \t]*//g'|sed 's/[ \t]*$'//g)
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+ decode_size $1 1
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+ verbose "Resizing filesystem on device \"$VOLUME\" to $NEWSIZE bytes(btrfs devid: $BTRFS_DEVID) "
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+ dry "$BTRFS" filesystem resize "$BTRFS_DEVID":"$NEWSIZE" "$MOUNTPOINT"
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+}
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####################
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# Resize filesystem
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####################
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@@ -384,6 +449,7 @@ resize() {
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"ext3"|"ext2"|"ext4") resize_ext $NEWSIZE ;;
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"reiserfs") resize_reiser $NEWSIZE ;;
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"xfs") resize_xfs $NEWSIZE ;;
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+ "btrfs") resize_btrfs $NEWSIZE ;;
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*) error "Filesystem \"$FSTYPE\" on device \"$VOLUME\" is not supported by this tool" ;;
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esac || error "Resize $FSTYPE failed"
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cleanup 0
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@@ -441,6 +507,12 @@ check() {
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# Think about better way....
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dry "$XFS_REPAIR" -n -o force_geometry "$VOLUME"
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fi ;;
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+ "btrfs") #mount the device first and then run scrub
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+ MOUNTPOINT=$TEMPDIR
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+ temp_mount || error "Cannot mount btrfs filesystem"
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+ dry "$BTRFS" scrub start -B "$VOLUME"
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+ test "$MOUNTPOINT" = "$TEMPDIR" && MOUNTPOINT="" temp_umount
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+ ;;
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*) # check if executed from interactive shell environment
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case "$-" in
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*i*) dry "$FSCK" $YES $FORCE "$VOLUME" ;;
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@@ -462,7 +534,7 @@ test -n "$FSADM_RUNNING" && exit 0
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for i in "$TUNE_EXT" "$RESIZE_EXT" "$TUNE_REISER" "$RESIZE_REISER" \
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"$TUNE_XFS" "$RESIZE_XFS" "$MOUNT" "$UMOUNT" "$MKDIR" \
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"$RMDIR" "$BLOCKDEV" "$BLKID" "$GREP" "$READLINK" \
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- "$DATE" "$FSCK" "$XFS_CHECK" "$XFS_REPAIR" "$LVM" ; do
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+ "$DATE" "$FSCK" "$XFS_CHECK" "$XFS_REPAIR" "$LVM" "$BTRFS" ; do
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test -n "$i" || error "Required command definitions in the script are missing!"
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done
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--
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1.8.1.4
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