https://github.com/torvalds/linux
Revision 1d64b655dc083df5c5ac39945ccbbc6532903bf1 authored by Dmitry Torokhov on 23 February 2011, 16:51:28 UTC, committed by Dmitry Torokhov on 23 February 2011, 16:53:07 UTC
Commit 8ee294cd9def0004887da7f44b80563493b0a097 converted serio subsystem event handling from using a dedicated thread to using common workqueue. Unfortunately, this regressed our boot times, due to the fact that serio jobs take long time to execute. While the new concurrency managed workqueue code manages long-playing works just fine and schedules additional workers as needed, such works wreck havoc among remaining users of flush_scheduled_work(). To solve this problem let's move serio/gameport works from system_wq to system_long_wq which nobody tries to flush. Reported-and-tested-by: Hernando Torque <pantherchen@versanet.de> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
1 parent 9bb794a
Tip revision: 1d64b655dc083df5c5ac39945ccbbc6532903bf1 authored by Dmitry Torokhov on 23 February 2011, 16:51:28 UTC
Input: serio/gameport - use 'long' system workqueue
Input: serio/gameport - use 'long' system workqueue
Tip revision: 1d64b65
checkkconfigsymbols.sh
#!/bin/sh
# Find Kconfig variables used in source code but never defined in Kconfig
# Copyright (C) 2007, Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
# Tested with dash.
paths="$@"
[ -z "$paths" ] && paths=.
# Doing this once at the beginning saves a lot of time, on a cache-hot tree.
Kconfigs="`find . -name 'Kconfig' -o -name 'Kconfig*[^~]'`"
/bin/echo -e "File list \tundefined symbol used"
find $paths -name '*.[chS]' -o -name 'Makefile' -o -name 'Makefile*[^~]'| while read i
do
# Output the bare Kconfig variable and the filename; the _MODULE part at
# the end is not removed here (would need perl an not-hungry regexp for that).
sed -ne 's!^.*\<\(UML_\)\?CONFIG_\([0-9A-Za-z_]\+\).*!\2 '$i'!p' < $i
done | \
# Smart "sort|uniq" implemented in awk and tuned to collect the names of all
# files which use a given symbol
awk '{map[$1, count[$1]++] = $2; }
END {
for (combIdx in map) {
split(combIdx, separate, SUBSEP);
# The value may have been removed.
if (! ( (separate[1], separate[2]) in map ) )
continue;
symb=separate[1];
printf "%s ", symb;
#Use gawk extension to delete the names vector
delete names;
#Portably delete the names vector
#split("", names);
for (i=0; i < count[symb]; i++) {
names[map[symb, i]] = 1;
# Unfortunately, we may still encounter symb, i in the
# outside iteration.
delete map[symb, i];
}
i=0;
for (name in names) {
if (i > 0)
printf ", %s", name;
else
printf "%s", name;
i++;
}
printf "\n";
}
}' |
while read symb files; do
# Remove the _MODULE suffix when checking the variable name. This should
# be done only on tristate symbols, actually, but Kconfig parsing is
# beyond the purpose of this script.
symb_bare=`echo $symb | sed -e 's/_MODULE//'`
if ! grep -q "\<$symb_bare\>" $Kconfigs; then
/bin/echo -e "$files: \t$symb"
fi
done|sort
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