User get_mount_info to replace findmnt calls
Use get_mount_info so that fstab is used as a failback when look for mount info. Signed-off-by: Kairui Song <kasong@redhat.com> Acked-by: Pingfan Liu <piliu@redhat.com>
This commit is contained in:
Kairui Song
parent
be578f6382
commit
61e016939c
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@ -94,19 +94,16 @@ get_kdump_confs()
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fi
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}
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# dump_fs <mount point| device>
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# dump_fs <mount point>
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dump_fs()
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{
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local _dev=$(findmnt -k -f -n -r -o SOURCE $1)
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local _mp=$(findmnt -k -f -n -r -o TARGET $1)
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local _op=$(findmnt -k -f -n -r -o OPTIONS $1)
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local _mp=$1
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local _dev=$(get_mount_info SOURCE target $_mp -f)
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local _op=$(get_mount_info OPTIONS target $_mp -f)
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if ! is_mounted "$_mp"; then
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_dev=$(findmnt -s -f -n -r -o SOURCE $1)
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_mp=$(findmnt -s -f -n -r -o TARGET $1)
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_op=$(findmnt -s -f -n -r -o OPTIONS $1)
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if [ -n "$_dev" ] && [ -n "$_mp" ]; then
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# If dump path have a corresponding device entry but not mounted, mount it.
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if [ -n "$_dev" ]; then
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if ! is_mounted "$_mp"; then
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echo "kdump: dump target $_dev is not mounted, trying to mount..."
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mkdir -p $_mp
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mount -o $_op $_dev $_mp
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@ -115,11 +112,10 @@ dump_fs()
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echo "kdump: mounting failed (mount point: $_mp, option: $_op)"
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return 1
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fi
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else
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echo "kdump: error: Dump target $_dev is not usable"
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fi
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else
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echo "kdump: dump target is $_dev"
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echo "kdump: failed to dump to \"$_mp\", it's not a mount point!"
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return 1
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fi
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# Remove -F in makedumpfile case. We don't want a flat format dump here.
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@ -260,6 +256,7 @@ read_kdump_conf()
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[ -n "$config_val" ] && add_dump_code "dump_fs $config_val"
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;;
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ext[234]|xfs|btrfs|minix|nfs)
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config_val=$(get_mntpoint_from_target "$config_val")
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add_dump_code "dump_fs $config_val"
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;;
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raw)
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@ -270,7 +270,6 @@ get_mntopt_from_target()
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{
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get_mount_info OPTIONS source $1 -f
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}
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# Find the general mount point of a dump target, not the bind mount point
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get_mntpoint_from_target()
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{
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4
kdumpctl
4
kdumpctl
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@ -907,8 +907,8 @@ path_to_be_relabeled()
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_target=$(local_fs_dump_target)
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if [[ -n "$_target" ]]; then
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_mnt=$(findmnt -k -f -n -r -o TARGET $_target)
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if [ -z "$_mnt" ]; then
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_mnt=$(get_mntpoint_from_target $_target)
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if ! is_mounted "$_mnt"; then
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return
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fi
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else
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38
mkdumprd
38
mkdumprd
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@ -51,21 +51,18 @@ add_dracut_sshkey() {
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# caller should ensure $1 is valid and mounted in 1st kernel
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to_mount() {
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local _dev=$1 _source _new_mntpoint _fstype _options _mntopts _pdev
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local _target=$1 _new_mntpoint _fstype _options _mntopts _pdev
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_source=$(findmnt -k -f -n -r -o SOURCE $_dev)
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_fstype=$(findmnt -k -f -n -r -o FSTYPE $_dev)
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_new_mntpoint=$(get_kdump_mntpoint_from_target $_dev)
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_fstype=$(get_fs_type_from_target $_target)
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_options=$(get_mntopt_from_target $_target)
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_new_mntpoint=$(get_kdump_mntpoint_from_target $_target)
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[[ -e /etc/fstab ]] && _options=$(findmnt --fstab -f -n -r -o OPTIONS $_dev)
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if [ -z "$_options" ]; then
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_options=$(findmnt -k -f -n -r -o OPTIONS $_dev)
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if [[ $_fstype == "nfs"* ]]; then
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_options=$(echo $_options | sed 's/,addr=[^,]*//')
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_options=$(echo $_options | sed 's/,proto=[^,]*//')
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_options=$(echo $_options | sed 's/,clientaddr=[^,]*//')
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fi
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if [[ "$_fstype" == "nfs"* ]]; then
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_options=$(echo $_options | sed 's/,addr=[^,]*//')
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_options=$(echo $_options | sed 's/,proto=[^,]*//')
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_options=$(echo $_options | sed 's/,clientaddr=[^,]*//')
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fi
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# mount fs target as rw in 2nd kernel
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_options=$(echo $_options | sed 's/\(^\|,\)ro\($\|,\)/\1rw\2/g')
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# with 'noauto' in fstab nfs and non-root disk mount will fail in 2nd
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@ -79,28 +76,19 @@ to_mount() {
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_options="$_options,nofail,x-systemd.before=initrd-fs.target"
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_mntopts="$_new_mntpoint $_fstype $_options"
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# for non-nfs _dev converting to use udev persistent name
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if [ -b "$_source" ]; then
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_pdev="$(get_persistent_dev $_source)"
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# for non-nfs _target converting to use udev persistent name
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if [ -b "$_target" ]; then
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_pdev="$(get_persistent_dev $_target)"
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if [ -z "$_pdev" ]; then
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return 1
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fi
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else
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_pdev=$_dev
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_pdev=$_target
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fi
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echo "$_pdev $_mntopts"
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}
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is_readonly_mount() {
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local _mnt
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_mnt=$(findmnt -k -f -n -r -o OPTIONS $1)
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#fs/proc_namespace.c: show_mountinfo():
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#seq_puts(m, mnt->mnt_flags & MNT_READONLY ? " ro" : " rw");
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[[ "$_mnt" =~ ^ro ]]
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}
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#Function: get_ssh_size
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#$1=dump target
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#called from while loop and shouldn't read from stdin, so we're using "ssh -n"
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