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Message-ID: <20080627095418.2353267d@bike.lwn.net>
Date: Fri, 27 Jun 2008 09:54:18 -0600
From: Jonathan Corbet <corbet@....net>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
Arnd Bergmann <arnd@...db.de>, Andi Kleen <andi@...stfloor.org>
Subject: The state of the BKL-removal tree
The bkl-removal tree lives at:
git://git.lwn.net/linux-2.6.git bkl-removal
It has accumulated a fair amount of stuff at this point. Lots of
pushdown work and a significant API change: the open() and fasync()
file_operations are now called without the big kernel lock.
This tree has been in linux-next since mid-May. In the absence of
reasons to the contrary, my intent is to ask for this to be merged for
2.6.27. Objections, anybody?
Andi Kleen (1):
Remove BKL from remote_llseek v2
Arnd Bergmann (68):
agp-frontend: BKL pushdown
ans-lcd: BKL pushdown
apm-emulation: BKL pushdown
apm_32: BKL pushdown
basler-excite: BKL pushdown
bf561-coreb: BKL pushdown
block-dasd_eer: BKL pushdown
bluetooth-vhci: BKL pushdown
briq_panel: BKL pushdown
bvme6000-rtc: BKL pushdown
cpwatchdog: BKL pushdown
crypto-prng: BKL pushdown
crypto-zcrypt_api: BKL pushdown
display7seg: BKL pushdown
dlm-user: BKL pushdown
ds1286: BKL pushdown
ds1620: BKL pushdown
efirtc: BKL pushdown
envctrl: BKL pushdown
flash: BKL pushdown
genrtc: BKL pushdown
hdpu_cpustate: BKL pushdown
hp_sdc_rtc: BKL pushdown
hpet: BKL pushdown
hw-random: BKL pushdown
infiniband-ucma: BKL pushdown
ip27-rtc: BKL pushdown
ipmi-watchdog: BKL pushdown
irnet_ppp: BKL pushdown
jsflash: BKL pushdown
lcd: BKL pushdown
macintosh-smu: BKL pushdown
media-radio-miropcm20-rds: BKL pushdown
megaraid: BKL pushdown
message-i2o-i2o_config: BKL pushdown
microcode: BKL pushdown
monreader: BKL pushdown
monwriter: BKL pushdown
mousedev: BKL pushdown
mvme16x-rtc: BKL pushdown
mwave-mwavedd: BKL pushdown
net-tun: BKL pushdown
nvram: BKL pushdown
ocfs2-stack_user: BKL pushdown
openprom: BKL pushdown
parisc-eisa_eeprom: BKL pushdown
parisc-kernel-perf: BKL pushdown
pm_qos_params: BKL pushdown
riowatchdog: BKL pushdown
rtc: BKL pushdown
rtc-rtc-m41t80: BKL pushdown
sbus-rtc: BKL pushdown
scsi-tgt: BKL pushdown
serio: BKL pushdown
sony-laptop: BKL pushdown
sonypi: BKL pushdown
sparc-apc: BKL pushdown
sparc64-rtc: BKL pushdown
tpm-tpm: BKL pushdown
uctrl: BKL pushdown
uinput: BKL pushdown
uml-harddog: BKL pushdown
uml-mmapper: BKL pushdown
uml-random: BKL pushdown
via-pmu: BKL pushdown
vmcp: BKL pushdown
vmwatchdog: BKL pushdown
x86-mce: BKL pushdown
Jonathan Corbet (73):
bsg: cdev lock_kernel() pushdown
cris: cdev lock_kernel() pushdown
mips: cdev lock_kernel() pushdown
sh: cdev lock_kernel() pushdown
x86: cdev lock_kernel() pushdown
i2c: cdev lock_kernel() pushdown
cosa: cdev lock_kernel() pushdown
pcmcia: cdev lock_kernel() pushdown
rtc: cdev lock_kernel() pushdown
drivers/s390: cdev lock_kernel() pushdown
AoE: cdev lock_kernel() pushdown
paride: cdev lock_kernel() pushdown
mtdchar: cdev lock_kernel() pushdown
UBI: cdev lock_kernel() pushdown
HID: cdev lock_kernel() pushdown
Input: cdev lock_kernel() pushdown
UIO: cdev lock_kernel() pushdown
ipmi: cdev lock_kernel() pushdown
mem: cdev lock_kernel() pushdown
misc: cdev lock_kernel() pushdown
viotape: cdev lock_kernel pushdown ()
mbcs: cdev lock_kernel() pushdown
lp: cdev lock_kernel() pushdown
drm: cdev lock_kernel() pushdown
phonedev: cdev lock_kernel() pushdown
ide-tape: cdev lock_kernel() pushdown
sg: cdev lock_kernel() pushdown
osst: cdev lock_kernel() pushdown.
aacraid: cdev lock_kernel() pushdown
st: cdev lock_kernel() pushdown
gdth: cdev lock_kernel() pushdown
isdn: cdev lock_kernel() pushdown
usbcore: cdev lock_kernel() pushdown
dvb: cdev lock_kernel() pushdown
fbmem: cdev lock_kernel() pushdown
sound: cdev lock_kernel() pushdown
snsc: cdev lock_kernel() pushdown
tty: cdev lock_kernel() pushdown
Add "no BKL needed" comments to several drivers
spidev: BKL pushdown
vcs: BKL pushdown
xilinx icap: BKL pushdown
tlckl: BKL pushdown
raw: BKL pushdown
dsp56k: BKL pushdown
infiniband: more BKL pushdown
phantom: BKL pushdown
bpp: bkl pushdown
videopix: BKL pushdown
dpt_i20: BKL pushdown
changer: BKL pushdown
CAPI: BKL pushdown
divamnt: BKL pushdown
adb: BKL pushdown
printer gadget: BKL pushdown
USB Monitor: BKL pushdown
usbdev: BKL pushdown
videodev: BKL pushdown
Add cycle_kernel_lock()
Add a bunch of cycle_kernel_lock() calls
Add a comment in chrdev_open()
Remove the lock_kernel() call from chrdev_open()
Make FAT users happier by not deadlocking
Merge commit 'v2.6.26-rc6' into bkl-removal
mpt: fasync BKL pushdown
i2o: fasync BKL pushdown
tun: fasync BKL pushdown
tty_io: fasync BKL pushdown
Bluetooth VHCI: fasync BKL pushdown
ecryptfs: fasync BKL pushdown
ipmi: fasync BKL pushdown
snd/PCM: fasync BKL pushdown
Call fasync() functions without the BKL
Linus Torvalds (1):
Replace BKL with superblock lock in fat/msdos/vfat
Stephen Rothwell (1):
bkl-removal viotape fixup
arch/blackfin/mach-bf561/coreb.c | 4 ++
arch/cris/arch-v10/drivers/eeprom.c | 4 +-
arch/cris/arch-v10/drivers/gpio.c | 3 ++
arch/cris/arch-v10/drivers/i2c.c | 2 +
arch/cris/arch-v10/drivers/sync_serial.c | 34 +++++++++++++--------
arch/cris/arch-v32/drivers/cryptocop.c | 3 +-
arch/cris/arch-v32/drivers/i2c.c | 2 +
arch/cris/arch-v32/drivers/mach-a3/gpio.c | 4 ++
arch/cris/arch-v32/drivers/mach-fs/gpio.c | 5 ++-
arch/cris/arch-v32/drivers/sync_serial.c | 33 ++++++++++++--------
arch/m68k/bvme6000/rtc.c | 7 ++++-
arch/m68k/mvme16x/rtc.c | 4 ++
arch/mips/basler/excite/excite_iodev.c | 9 +++++-
arch/mips/kernel/rtlx.c | 7 ++++-
arch/mips/kernel/vpe.c | 12 ++++++--
arch/mips/sibyte/common/sb_tbprof.c | 25 +++++++++++----
arch/parisc/kernel/perf.c | 4 ++
arch/s390/crypto/prng.c | 2 +
arch/sh/boards/landisk/gio.c | 10 ++++--
arch/sparc/kernel/apc.c | 2 +
arch/sparc64/kernel/time.c | 7 ++++-
arch/um/drivers/harddog_kern.c | 3 ++
arch/um/drivers/mmapper_kern.c | 2 +
arch/um/drivers/random.c | 3 ++
arch/x86/kernel/apm_32.c | 4 ++
arch/x86/kernel/cpu/mcheck/mce_64.c | 4 ++
arch/x86/kernel/cpuid.c | 25 +++++++++++-----
arch/x86/kernel/microcode.c | 2 +
arch/x86/kernel/msr.c | 16 +++++++--
block/bsg.c | 7 ++++-
drivers/block/aoe/aoechr.c | 7 ++++-
drivers/block/paride/pg.c | 22 ++++++++++----
drivers/block/paride/pt.c | 8 ++++-
drivers/bluetooth/hci_vhci.c | 14 +++++++--
drivers/char/agp/frontend.c | 4 ++
drivers/char/apm-emulation.c | 3 ++
drivers/char/briq_panel.c | 9 ++++-
drivers/char/cs5535_gpio.c | 2 +
drivers/char/drm/drm_fops.c | 9 ++++-
drivers/char/ds1286.c | 4 ++
drivers/char/ds1620.c | 9 +++++-
drivers/char/dsp56k.c | 16 +++++++---
drivers/char/dtlk.c | 3 ++
drivers/char/efirtc.c | 2 +
drivers/char/genrtc.c | 7 ++++-
drivers/char/hpet.c | 4 ++
drivers/char/hw_random/core.c | 2 +
drivers/char/ip2/ip2main.c | 34 +--------------------
drivers/char/ip27-rtc.c | 4 ++
drivers/char/ipmi/ipmi_devintf.c | 10 +++++-
drivers/char/ipmi/ipmi_watchdog.c | 3 ++
drivers/char/lcd.c | 3 ++
drivers/char/lp.c | 38 ++++++++++++++++-------
drivers/char/mbcs.c | 5 +++
drivers/char/mem.c | 10 +++++-
drivers/char/misc.c | 3 ++
drivers/char/mwave/mwavedd.c | 2 +
drivers/char/nvram.c | 4 ++
drivers/char/pc8736x_gpio.c | 2 +
drivers/char/ppdev.c | 2 +
drivers/char/raw.c | 3 ++
drivers/char/rtc.c | 4 ++
drivers/char/scx200_gpio.c | 2 +
drivers/char/snsc.c | 5 ++-
drivers/char/sonypi.c | 3 ++
drivers/char/tb0219.c | 2 +
drivers/char/tlclk.c | 19 +++++++----
drivers/char/tpm/tpm.c | 5 +++
drivers/char/tty_io.c | 41 +++++++++++++++++++++----
drivers/char/vc_screen.c | 9 ++++-
drivers/char/viotape.c | 3 ++
drivers/char/vr41xx_giu.c | 2 +
drivers/char/xilinx_hwicap/xilinx_hwicap.c | 6 +++-
drivers/hid/hidraw.c | 3 ++
drivers/i2c/i2c-dev.c | 22 ++++++++++----
drivers/ide/ide-tape.c | 7 ++++-
drivers/infiniband/core/ucm.c | 2 +
drivers/infiniband/core/ucma.c | 3 ++
drivers/infiniband/core/user_mad.c | 7 ++++-
drivers/infiniband/core/uverbs_main.c | 9 ++++-
drivers/infiniband/hw/ipath/ipath_file_ops.c | 2 +
drivers/input/input.c | 16 +++++++--
drivers/input/misc/hp_sdc_rtc.c | 2 +
drivers/input/misc/uinput.c | 3 ++
drivers/input/mousedev.c | 12 ++++++-
drivers/input/serio/serio_raw.c | 6 +++-
drivers/isdn/capi/capi.c | 17 +++++++----
drivers/isdn/hardware/eicon/divamnt.c | 16 +++++++---
drivers/isdn/hardware/eicon/divasi.c | 2 +
drivers/isdn/hardware/eicon/divasmain.c | 2 +
drivers/isdn/i4l/isdn_common.c | 3 +-
drivers/macintosh/adb.c | 18 ++++++++---
drivers/macintosh/ans-lcd.c | 2 +
drivers/macintosh/smu.c | 3 ++
drivers/macintosh/via-pmu.c | 3 ++
drivers/media/dvb/dvb-core/dvbdev.c | 4 ++
drivers/media/radio/miropcm20-rds.c | 4 ++
drivers/media/video/videodev.c | 4 ++
drivers/message/fusion/mptctl.c | 6 +++-
drivers/message/i2o/i2o_config.c | 12 +++++--
drivers/misc/hdpuftrs/hdpu_cpustate.c | 9 +++++-
drivers/misc/phantom.c | 9 ++++-
drivers/misc/sony-laptop.c | 3 ++
drivers/mtd/mtdchar.c | 22 ++++++++++----
drivers/mtd/ubi/cdev.c | 7 ++++-
drivers/net/ppp_generic.c | 2 +
drivers/net/tun.c | 13 ++++++--
drivers/net/wan/cosa.c | 22 ++++++++++----
drivers/parisc/eisa_eeprom.c | 3 ++
drivers/pcmcia/pcmcia_ioctl.c | 25 +++++++++++----
drivers/rtc/rtc-dev.c | 12 ++++++--
drivers/rtc/rtc-m41t80.c | 7 ++++-
drivers/s390/block/dasd_eer.c | 6 ++++
drivers/s390/char/fs3270.c | 23 ++++++++++----
drivers/s390/char/monreader.c | 4 ++
drivers/s390/char/monwriter.c | 3 ++
drivers/s390/char/tape_char.c | 12 ++++++--
drivers/s390/char/vmcp.c | 4 ++
drivers/s390/char/vmlogrdr.c | 8 ++++-
drivers/s390/char/vmur.c | 12 ++++++--
drivers/s390/char/vmwatchdog.c | 7 ++++-
drivers/s390/crypto/zcrypt_api.c | 3 ++
drivers/sbus/char/bpp.c | 3 ++
drivers/sbus/char/cpwatchdog.c | 4 ++
drivers/sbus/char/display7seg.c | 1 +
drivers/sbus/char/envctrl.c | 2 +
drivers/sbus/char/flash.c | 6 +++-
drivers/sbus/char/jsflash.c | 13 ++++++--
drivers/sbus/char/openprom.c | 3 ++
drivers/sbus/char/riowatchdog.c | 2 +
drivers/sbus/char/rtc.c | 3 ++
drivers/sbus/char/uctrl.c | 3 ++
drivers/sbus/char/vfc_dev.c | 5 +++
drivers/scsi/3w-9xxx.c | 3 ++
drivers/scsi/3w-xxxx.c | 3 ++
drivers/scsi/aacraid/linit.c | 3 ++
drivers/scsi/ch.c | 4 ++
drivers/scsi/dpt_i2o.c | 5 +++
drivers/scsi/gdth.c | 3 ++
drivers/scsi/megaraid.c | 5 ++-
drivers/scsi/megaraid/megaraid_mm.c | 2 +
drivers/scsi/megaraid/megaraid_sas.c | 2 +
drivers/scsi/osst.c | 15 +++++++++-
drivers/scsi/scsi_tgt_if.c | 2 +
drivers/scsi/sg.c | 16 ++++++++--
drivers/scsi/st.c | 11 ++++++-
drivers/spi/spidev.c | 3 ++
drivers/telephony/phonedev.c | 3 ++
drivers/uio/uio.c | 17 +++++++---
drivers/usb/core/devio.c | 2 +
drivers/usb/core/file.c | 3 ++
drivers/usb/gadget/printer.c | 3 +-
drivers/usb/mon/mon_bin.c | 6 ++++
drivers/video/fbmem.c | 15 +++++++--
fs/char_dev.c | 7 ++--
fs/cifs/cifsfs.c | 2 +-
fs/dlm/user.c | 9 +++++-
fs/ecryptfs/file.c | 3 ++
fs/fat/cache.c | 2 +-
fs/fat/dir.c | 4 +-
fs/fat/file.c | 6 ----
fs/fat/inode.c | 26 ++++++++++------
fs/fcntl.c | 3 --
fs/gfs2/ops_file.c | 4 +-
fs/msdos/namei.c | 35 ++++++++++++----------
fs/ncpfs/file.c | 12 +++++++-
fs/nfs/file.c | 6 +++-
fs/ocfs2/stack_user.c | 3 ++
fs/read_write.c | 38 +++++++-----------------
fs/smbfs/file.c | 11 ++++++-
fs/vfat/namei.c | 35 ++++++++++++----------
include/linux/fs.h | 3 +-
include/linux/smp_lock.h | 13 ++++++++
kernel/pm_qos_params.c | 7 ++++-
net/irda/irnet/irnet.h | 1 +
net/irda/irnet/irnet_ppp.c | 3 ++
sound/core/pcm_native.c | 8 ++++-
sound/core/sound.c | 15 +++++++++-
sound/sound_core.c | 5 +++
179 files changed, 1084 insertions(+), 352 deletions(-)
jon
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