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mkdumprd: omit dracut modules in case of network dumping

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In case of only network target, we can clearly and safely
remove more unnecessary modules to reduce initramfs size,
and to enhance stability.

Signed-off-by: Xunlei Pang <xlpang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
This commit is contained in:
Xunlei Pang 2017-07-07 15:48:58 +08:00 committed by Dave Young
parent 821d1af080
commit fb522e972c
1 changed files with 11 additions and 1 deletions
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12
mkdumprd
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@ -385,12 +385,13 @@ crypt_exists=0
omit_dracut_modules() omit_dracut_modules()
{ {
local target majmin local target majmin
local dm_exists local dm_exists network_only
# Skip fadump case # Skip fadump case
is_fadump_capable && return is_fadump_capable && return
dm_exists=0 dm_exists=0
network_only=1
for target in $(get_kdump_targets); do for target in $(get_kdump_targets); do
if [ -b "$target" ]; then if [ -b "$target" ]; then
@ -398,6 +399,9 @@ omit_dracut_modules()
# Check "dm" # Check "dm"
check_block_and_slaves is_dm $majmin && dm_exists=1 check_block_and_slaves is_dm $majmin && dm_exists=1
fi fi
# Check nfs/ssh dumping
[[ "$target" != "nfs" && "$target" != "ssh" ]] && network_only=0
done done
# Omit "crypt", BZ1451717 # Omit "crypt", BZ1451717
@ -410,6 +414,12 @@ omit_dracut_modules()
# "dm_exists=0" implies "crypt_exists=0" # "dm_exists=0" implies "crypt_exists=0"
add_dracut_arg "--omit" "lvm dm multipath dmraid" add_dracut_arg "--omit" "lvm dm multipath dmraid"
fi fi
# Further omit more modules in case of nfs/ssh dumping
if [ "$network_only" == "1" ]; then
# "network_only=1" implies "dm_exists=0"
add_dracut_arg "--omit" "iscsi fcoe fcoe-uefi"
fi
} }
if ! check_resettable; then if ! check_resettable; then