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feebed6515
linux/drivers/char
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Alan Cox feebed6515 tty: shutdown method 
Right now there are various drivers that try to use tty->count to know when
they get the final close. Aristeau Rozanski showed while debugging the vt
sysfs race that this isn't entirely safe.

Instead of driver side tricks to work around this introduce a shutdown which
is called when the tty is being destructed. This also means that the shutdown
method is tied into the refcounting.

Use this to rework the console close/sysfs logic.

Remove lots of special case code from the tty core code. The pty code can now
have a shutdown() method that replaces the special case hackery in the tree
free up paths.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-13 09:51:42 -07:00
..
agp linux-next: fix x86 tree build failure 2008-08-25 12:28:33 +02:00
hw_random sparc: Annotate of_device_id arrays with const or __initdata. 2008-08-31 01:23:17 -07:00
ip2 ip2: avoid add_timer with pending timer 2008-10-13 09:51:39 -07:00
ipmi drivers/char/ipmi/ipmi_si_intf.c:default_find_bmc(): fix leak 2008-08-20 15:40:31 -07:00
mwave mwave: ioctl BKL pushdown 2008-07-25 10:53:43 -07:00
pcmcia tty: ipw need reworking 2008-10-13 09:51:40 -07:00
rio rio: push down the BKL into the firmware ioctl handler 2008-07-25 10:53:43 -07:00
tpm securityfs: do not depend on CONFIG_SECURITY 2008-08-28 10:47:42 +10:00
xilinx_hwicap removed unused #include <linux/version.h>'s 2008-08-23 12:14:12 -07:00
.gitignore
amiserial.c m68k/amiserial: fix fallout of tty break handling rework 2008-08-06 13:24:41 -07:00
apm-emulation.c APM emulation: Notify about all suspend events, not just APM invoked ones (v2) 2008-07-16 23:27:02 +02:00
applicom.c char serial: switch drivers to ioremap_nocache 2008-04-30 08:29:48 -07:00
applicom.h
bfin-otp.c Blackfin char driver for Blackfin on-chip OTP memory (v3) 2008-04-25 08:04:56 +08:00
briq_panel.c briq_panel: BKL pushdown 2008-06-20 14:05:55 -06:00
bsr.c powerpc: Add driver for Barrier Synchronization Register 2008-07-15 12:24:55 +10:00
cd1865.h
ChangeLog
consolemap.c Basic braille screen reader support 2008-04-30 08:29:52 -07:00
cp437.uni
cs5535_gpio.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
cyclades.c Char: cyclades. remove bogus iomap 2008-10-13 09:51:38 -07:00
defkeymap.c_shipped
defkeymap.map
digi1.h
digiFep1.h
digiPCI.h
ds1286.c ds1286: BKL pushdown 2008-06-20 14:05:56 -06:00
ds1302.c ds1302: push down the BKL into the driver ioctl code 2008-07-25 10:53:43 -07:00
ds1620.c [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
dsp56k.c dsp56k: Fix BKL pushdown 2008-07-26 13:22:56 -07:00
dtlk.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
efirtc.c drivers/char/efirtc.c: removed duplicated #include 2008-08-04 16:59:56 -07:00
epca.c epca: call tty_port_init 2008-10-13 09:51:38 -07:00
epca.h epca: use tty_port 2008-07-20 17:12:36 -07:00
epcaconfig.h
esp.c tty: rework break handling 2008-07-22 13:03:28 -07:00
generic_nvram.c driver/char/generic_nvram: fix banner 2008-06-12 18:05:41 -07:00
generic_serial.c gs: use tty_port 2008-07-20 17:12:36 -07:00
genrtc.c genrtc: BKL pushdown 2008-06-20 14:05:57 -06:00
hangcheck-timer.c
hpet.c #if 0 hpet_unregister() 2008-07-25 10:53:43 -07:00
hvc_beat.c
hvc_console.c drivers/char/hvc_console.c: adjust call to put_tty_driver 2008-10-13 09:51:37 -07:00
hvc_console.h powerpc: Move include files to arch/powerpc/include/asm 2008-08-04 12:02:00 +10:00
hvc_irq.c hvc_console: rework setup to replace irq functions with callbacks 2008-07-25 12:06:06 +10:00
hvc_iseries.c hvc_console: rework setup to replace irq functions with callbacks 2008-07-25 12:06:06 +10:00
hvc_rtas.c
hvc_vio.c hvc_console: rework setup to replace irq functions with callbacks 2008-07-25 12:06:06 +10:00
hvc_xen.c xen: clean up domain mode predicates 2008-08-20 12:40:07 +02:00
hvcs.c powerpc: Move include files to arch/powerpc/include/asm 2008-08-04 12:02:00 +10:00
hvsi.c drivers/char: replace remaining __FUNCTION__ occurrences 2008-04-30 08:29:54 -07:00
i8k.c i8k: make fan multiplier tunable with a module parameter 2008-05-01 08:04:00 -07:00
ip27-rtc.c ip27-rtc: BKL pushdown 2008-06-20 14:05:57 -06:00
isicom.c tty: kref usage for isicom and moxa 2008-10-13 09:51:41 -07:00
istallion.c stallion: Use krefs 2008-10-13 09:51:41 -07:00
Kconfig stallion: Use krefs 2008-10-13 09:51:41 -07:00
keyboard.c Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into next 2008-07-21 00:55:14 -04:00
lp.c device create: char: convert device_create to device_create_drvdata 2008-07-21 21:54:41 -07:00
Makefile tty: Split tty_port into its own file 2008-10-13 09:51:40 -07:00
mbcs.c mbcs: cdev lock_kernel() pushdown 2008-06-20 14:05:48 -06:00
mbcs.h
mem.c use generic_access_phys for /dev/mem mappings 2008-07-24 10:47:15 -07:00
misc.c device create: char: convert device_create to device_create_drvdata 2008-07-21 21:54:41 -07:00
mmtimer.c mmtimer: Push BKL down into the ioctl handler 2008-07-17 11:34:49 -07:00
moxa.c tty: kref usage for isicom and moxa 2008-10-13 09:51:41 -07:00
moxa.h Char: moxa, cleanup rx/tx 2008-04-30 08:29:43 -07:00
mspec.c mspec: convert nopfn to fault 2008-07-24 10:47:14 -07:00
mxser.c mxser: Switch to kref tty 2008-10-13 09:51:41 -07:00
mxser.h mxser: convert large macros to functions 2008-04-30 08:29:49 -07:00
n_hdlc.c n_hdlc: honor O_NONBLOCK on write 2008-07-22 13:03:28 -07:00
n_r3964.c tty: Ldisc revamp 2008-07-20 17:12:34 -07:00
n_tty.c tty: Ldisc revamp 2008-07-20 17:12:34 -07:00
nozomi.c nozomi: Fix close on error 2008-10-13 09:51:39 -07:00
nsc_gpio.c
nvram.c drivers/char/nvram.c: Removed duplicated include 2008-07-23 09:36:23 -07:00
nwbutton.c
nwbutton.h
nwflash.c [ARM] fix nwflash.c: 6ee8928d94 2008-07-26 16:29:24 +01:00
pc8736x_gpio.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
ppdev.c ppdev: wrap ioctl handler in driver and push lock down 2008-07-25 10:53:43 -07:00
ps3flash.c
pty.c tty: shutdown method 2008-10-13 09:51:42 -07:00
random.c block: don't depend on consecutive minor space 2008-10-09 08:56:05 +02:00
raw.c device create: char: convert device_create to device_create_drvdata 2008-07-21 21:54:41 -07:00
riscom8_reg.h
riscom8.c riscom8: Restore driver using new break functionality 2008-07-22 13:03:28 -07:00
riscom8.h tty: add more tty_port fields 2008-07-20 17:12:38 -07:00
rocket_int.h tty: add more tty_port fields 2008-07-20 17:12:38 -07:00
rocket.c tty: rework break handling 2008-07-22 13:03:28 -07:00
rocket.h tty: add more tty_port fields 2008-07-20 17:12:38 -07:00
rtc.c sparc32: Convert PC RTC probing to pure OF driver. 2008-08-30 00:23:51 -07:00
scc.h
scx200_gpio.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
selection.c tty: Ldisc revamp 2008-07-20 17:12:34 -07:00
ser_a2232.c m68k: gs: use tty_port fixes 2008-07-26 20:29:03 -07:00
ser_a2232.h
ser_a2232fw.ax
ser_a2232fw.h
serial167.c m68k: serial167 missing return value in cy_put_char() 2008-05-05 12:37:02 -07:00
snsc_event.c byteorder: don't directly include linux/byteorder/generic.h 2008-05-16 12:01:45 -07:00
snsc.c device create: char: convert device_create to device_create_drvdata 2008-07-21 21:54:41 -07:00
snsc.h Convert asm/semaphore.h users to linux/semaphore.h 2008-04-18 22:22:54 -04:00
sonypi.c sonypi: BKL pushdown 2008-07-02 15:06:25 -06:00
specialix_io8.h tty: add more tty_port fields 2008-07-20 17:12:38 -07:00
specialix.c specialix: restore driver using new break functionality 2008-07-22 13:03:28 -07:00
stallion.c stallion: Use krefs 2008-10-13 09:51:41 -07:00
sx.c Char: sx, fix io unmapping 2008-10-13 09:51:39 -07:00
sx.h
sxboards.h
sxwindow.h
synclink_gt.c removed unused #include <version.h> 2008-08-16 17:21:58 -07:00
synclink.c Merge branch 'for-jeff' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 into tmp 2008-08-07 04:05:46 -04:00
synclinkmp.c Merge branch 'for-jeff' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 into tmp 2008-08-07 04:05:46 -04:00
sysrq.c fix: "smp_call_function: get rid of the unused nonatomic/retry argument" 2008-06-27 11:52:45 +02:00
tb0219.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
tlclk.c tlckl: BKL pushdown 2008-06-20 14:05:51 -06:00
toshiba.c toshiba: use ioremap_cached 2008-04-30 23:15:34 +02:00
tty_audit.c audit: Handle embedded NUL in TTY input auditing 2008-10-13 09:51:39 -07:00
tty_buffer.c tty: split the buffering from tty_io 2008-10-13 09:51:40 -07:00
tty_io.c tty: shutdown method 2008-10-13 09:51:42 -07:00
tty_ioctl.c tty: Termios locking - sort out real_tty confusions and lock reads 2008-10-13 09:51:41 -07:00
tty_ldisc.c try harder to load tty ldisc driver 2008-08-01 12:50:15 -07:00
tty_port.c tty: usb-serial krefs 2008-10-13 09:51:41 -07:00
vc_screen.c device create: char: convert device_create to device_create_drvdata 2008-07-21 21:54:41 -07:00
viotape.c device create: char: convert device_create to device_create_drvdata 2008-07-21 21:54:41 -07:00
virtio_console.c virtio_console: use virtqueue notification for hvc_console 2008-07-25 12:06:06 +10:00
vme_scc.c m68k: gs: use tty_port fixes 2008-07-26 20:29:03 -07:00
vr41xx_giu.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
vt_ioctl.c tty: move tioclinux from a special case 2008-10-13 09:51:40 -07:00
vt.c tty: shutdown method 2008-10-13 09:51:42 -07:00