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925ce689bb
All these files use the big kernel lock in a trivial way to serialize their private file operations, typically resulting from an earlier semi-automatic pushdown from VFS. None of these drivers appears to want to lock against other code, and they all use the BKL as the top-level lock in their file operations, meaning that there is no lock-order inversion problem. Consequently, we can remove the BKL completely, replacing it with a per-file mutex in every case. Using a scripted approach means we can avoid typos. file=$1 name=$2 if grep -q lock_kernel ${file} ; then if grep -q 'include.*linux.mutex.h' ${file} ; then sed -i '/include.*<linux\/smp_lock.h>/d' ${file} else sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file} fi sed -i ${file} \ -e "/^#include.*linux.mutex.h/,$ { 1,/^\(static\|int\|long\)/ { /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex); } }" \ -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \ -e '/[ ]*cycle_kernel_lock();/d' else sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \ -e '/cycle_kernel_lock()/d' fi Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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sisusbvga | ||
adutux.c | ||
appledisplay.c | ||
cypress_cy7c63.c | ||
cytherm.c | ||
emi26.c | ||
emi62.c | ||
ftdi-elan.c | ||
idmouse.c | ||
iowarrior.c | ||
isight_firmware.c | ||
Kconfig | ||
ldusb.c | ||
legousbtower.c | ||
Makefile | ||
rio500.c | ||
rio500_usb.h | ||
trancevibrator.c | ||
usb_u132.h | ||
usblcd.c | ||
usbled.c | ||
usbsevseg.c | ||
usbtest.c | ||
uss720.c |