Prev: [PATCH 23/31] tty: fix console_sem lock order
Next: [PATCH 15/31] tty: Make vt's have a tty_port
From: Arnd Bergmann on 1 Jun 2010 17:00
Hi Greg,

As promised, here is a resend of the patches from
both Alan and myself, making the BKL optional
in the TTY layer. Please apply to your tty-next
tree.

Arnd

--

Alan Cox (20):
stallion: prune lock_kernel calls
istallion: use bit ops for the board flags
riscom8: kill use of lock_kernel
isicom: kill off the BKL
rocket: kill BKL
synclink: kill the big kernel lock
cyclades: Kill off BKL usage
epca: Kill the big kernel lock
specialix; Kill the BKL
synclink: reworking locking a bit
tty: serial - fix various misuses/mishandlings of port->tty
tty: serial - fix tty back references in termios
tty: serial - fix tty referencing in set_ldisc
vc: Locking clean up
tty: Make vt's have a tty_port
tty: Move the vt_tty field from the vc_data into the standard
tty_port
serial: Change the wait for carrier locking
serial: add port helpers
serial: trim locking on the helpers
serial: Use block_til_ready helper

Arnd Bergmann (11):
tty: replace BKL with a new tty_lock
tty: never hold BTM while getting tty_mutex
tty: fix console_sem lock order
cdc-acm: remove dead code
tty: introduce wait_event_interruptible_tty
tty: reorder ldisc locking
tty: untangle locking of wait_until_sent
tty: remove tty_lock_nested
tty: implement BTM as mutex instead of BKL
tty: release BTM while sleeping in block_til_ready
8250: fix set_ldisc operation

drivers/char/Makefile | 1 +
drivers/char/amiserial.c | 25 +++-
drivers/char/briq_panel.c | 6 +-
drivers/char/cyclades.c | 22 ++--
drivers/char/epca.c | 4 +-
drivers/char/ip2/ip2main.c | 4 +
drivers/char/isicom.c | 13 +-
drivers/char/istallion.c | 68 ++++++-----
drivers/char/keyboard.c | 10 +-
drivers/char/n_hdlc.c | 16 +-
drivers/char/n_r3964.c | 10 +-
drivers/char/pty.c | 26 ++--
drivers/char/riscom8.c | 14 +-
drivers/char/rocket.c | 28 +++--
drivers/char/selection.c | 13 ++-
drivers/char/serial167.c | 8 +-
drivers/char/specialix.c | 13 +-
drivers/char/stallion.c | 20 ++-
drivers/char/sx.c | 12 +-
drivers/char/synclink.c | 21 ++--
drivers/char/synclink_gt.c | 92 +++++++-------
drivers/char/synclinkmp.c | 43 +++---
drivers/char/tty_io.c | 134 +++++++++++---------
drivers/char/tty_ldisc.c | 43 +++++--
drivers/char/tty_mutex.c | 47 +++++++
drivers/char/tty_port.c | 4 +-
drivers/char/vc_screen.c | 4 +-
drivers/char/vt.c | 19 ++-
drivers/char/vt_ioctl.c | 14 +-
drivers/serial/21285.c | 10 +-
drivers/serial/68328serial.c | 2 +
drivers/serial/68360serial.c | 4 +-
drivers/serial/8250.c | 9 +-
drivers/serial/bfin_5xx.c | 7 +-
drivers/serial/crisv10.c | 8 +-
drivers/serial/imx.c | 10 +-
drivers/serial/ioc3_serial.c | 9 +-
drivers/serial/ioc4_serial.c | 9 +-
drivers/serial/max3100.c | 7 +-
drivers/serial/serial_core.c | 281 +++++++++++++++++++---------------------
drivers/usb/class/cdc-acm.c | 12 +--
drivers/video/console/vgacon.c | 2 -
include/linux/console_struct.h | 3 +-
include/linux/istallion.h | 2 +-
include/linux/serial_core.h | 2 +-
include/linux/tty.h | 67 ++++++++++
lib/Kconfig.debug | 10 ++
47 files changed, 679 insertions(+), 509 deletions(-)
create mode 100644 drivers/char/tty_mutex.c

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Prev: [PATCH 23/31] tty: fix console_sem lock order
Next: [PATCH 15/31] tty: Make vt's have a tty_port