27af038494
The recent changes to gfp.h to satisfy sparse broke scripts/gfp-translate. This patch fixes it up to work with old and new versions of gfp.h . [akpm@linux-foundation.org: use `grep -q', per WANG Cong] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Cc: Namhyung Kim <namhyung@gmail.com> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1.7 KiB
#!/bin/bash
Translate the bits making up a GFP mask
(c) 2009, Mel Gorman mel@csn.ul.ie
Licensed under the terms of the GNU GPL License version 2
SOURCE= GFPMASK=none
Helper function to report failures and exit
die() { echo ERROR: $@ if [ "$TMPFILE" != "" ]; then rm -f $TMPFILE fi exit -1 }
usage() { echo "usage: gfp-translate [-h] [ --source DIRECTORY ] gfpmask" exit 0 }
Parse command-line arguments
while [ $# -gt 0 ]; do case $1 in --source) SOURCE=$2 shift 2 ;; -h) usage ;; --help) usage ;; *) GFPMASK=$1 shift ;; esac done
Guess the kernel source directory if it's not set. Preference is in order of
o current directory
o /usr/src/linux
if [ "$SOURCE" = "" ]; then
if [ -r "/usr/src/linux/Makefile" ]; then
SOURCE=/usr/src/linux
fi
if [ -r "pwd/Makefile" ]; then
SOURCE=pwd
fi
fi
Confirm that a source directory exists
if [ ! -r "$SOURCE/Makefile" ]; then die "Could not locate kernel source directory or it is invalid" fi
Confirm that a GFP mask has been specified
if [ "$GFPMASK" = "none" ]; then usage fi
Extract GFP flags from the kernel source
TMPFILE=mktemp -t gfptranslate-XXXXXX || exit 1
grep -q ___GFP $SOURCE/include/linux/gfp.h
if [ $? -eq 0 ]; then
grep "^#define ___GFP" $SOURCE/include/linux/gfp.h | sed -e 's/u$//' | grep -v GFP_BITS > $TMPFILE
else
grep "^#define __GFP" $SOURCE/include/linux/gfp.h | sed -e 's/(__force gfp_t)//' | sed -e 's/u)/)/' | grep -v GFP_BITS | sed -e 's/)//) //' > $TMPFILE
fi
Parse the flags
IFS="
"
echo Source: $SOURCE
echo Parsing: $GFPMASK
for LINE in cat $TMPFILE; do
MASK=echo $LINE | awk '{print $3}'
if [ $(($GFPMASK&$MASK)) -ne 0 ]; then
echo $LINE
fi
done
rm -f $TMPFILE exit 0