51 lines
1.7 KiB
Diff
51 lines
1.7 KiB
Diff
From 3f590c7840bb0897154f66a277be6bfaa63677bd Mon Sep 17 00:00:00 2001
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From: John Reiser <jreiser@BitWagon.com>
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Date: Fri, 26 Aug 2011 13:01:33 -0700
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Subject: [PATCH] inst_simple, inst_dir: make fast case faster
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This small stuff saves 1.7% per dropped statement during "dracut --profile".
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Fixing the comment about /lib -> lib64 is REQUIRED!
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---
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dracut-functions | 16 +++++-----------
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1 files changed, 5 insertions(+), 11 deletions(-)
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diff --git a/dracut-functions b/dracut-functions
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index 3edd4c7..f41fc7d 100755
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--- a/dracut-functions
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+++ b/dracut-functions
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@@ -266,19 +266,13 @@ check_vol_slaves() {
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}
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# Install a directory, keeping symlinks as on the original system.
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-# Example: if /lib64 points to /lib on the host, "inst_dir /lib/file"
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+# Example: if /lib points to /lib64 on the host, "inst_dir /lib/file"
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# will create ${initdir}/lib64, ${initdir}/lib64/file,
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# and a symlink ${initdir}/lib -> lib64.
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inst_dir() {
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- local _file=""
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- local _oldifs="$IFS"
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- local _part
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- local _dir="$1"
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+ [[ -e ${initdir}"$1" ]] && return 0 # already there
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- # fast out
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- [[ -e ${initdir}$_dir ]] && return 0
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-
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- _part=${_dir%/*}
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+ local _dir="$1" _part=${_dir%/*} _file
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while [[ "$_part" != "${_part%/*}" ]] && ! [[ -e "${initdir}${_part}" ]]; do
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_dir="$_part $_dir"
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_part=${_part%/*}
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@@ -310,9 +304,9 @@ inst_dir() {
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# Location of the image dir is assumed to be $initdir
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# We never overwrite the target if it exists.
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inst_simple() {
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- local _src target
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[[ -f $1 ]] || return 1
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- _src=$1 target="${2:-$1}"
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+
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+ local _src=$1 target="${2:-$1}"
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if ! [[ -d ${initdir}$target ]]; then
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[[ -e ${initdir}$target ]] && return 0
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[[ -h ${initdir}$target ]] && return 0
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