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33b37a33c2
kernel-ark/drivers/char
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Paul Fulghum 33b37a33c2 [PATCH] remove active field from tty buffer structure 
Remove 'active' field from tty buffer structure.  This was added in 2.6.16
as part of a patch to make the new tty buffering SMP safe.  This field is
unnecessary with the more intelligently written flush_to_ldisc that adds
receive_room handling.

Removing this field reverts to simpler logic where the tail buffer is
always the 'active' buffer, which should not be freed by flush_to_ldisc.
(active == buffer being filled with new data)

The result is simpler, smaller, and faster tty buffer code.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28 14:59:05 -07:00
..
agp [PATCH] Remove redundant NULL checks before [kv]free - in drivers/ 2006-06-27 17:32:48 -07:00
drm [PATCH] spin/rwlock init cleanups 2006-06-27 17:32:39 -07:00
ftape drivers/char/ftape/lowlevel/fdc-io.c: Correct a comment 2006-03-26 19:18:07 +02:00
hw_random [PATCH] Add TI OMAP CPU family HW RNG driver 2006-06-26 09:58:19 -07:00
ip2 [PATCH] char/ip2: more section fixes (replacement) 2006-06-25 10:01:16 -07:00
ipmi [PATCH] drivers/char/ipmi/ipmi_msghandler.c: make proc_ipmi_root static 2006-06-27 17:32:48 -07:00
mwave [PATCH] fix array overrun in drivers/char/mwave/mwavedd.c 2006-04-28 08:33:46 -07:00
pcmcia [PATCH] More !tty cleanups in drivers/char 2006-06-25 10:01:19 -07:00
rio spelling fixes 2006-06-26 18:35:02 +02:00
tpm [PATCH] tpm: more bios log parsing fixes 2006-05-31 16:27:10 -07:00
watchdog [WATCHDOG] s3c2410_wdt.c stop watchdog after boot 2006-05-15 21:38:14 +02:00
.gitignore gitignore: misc files 2006-01-01 22:21:50 +01:00
amiserial.c [PATCH] kill _INLINE_ 2006-03-23 07:38:16 -08:00
applicom.c [PATCH] drivers/char/applicom.c: proper module_{init,exit} 2006-06-25 10:01:05 -07:00
applicom.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cd1865.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ChangeLog Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
consolemap.c [PATCH] kfree cleanup: drivers/char 2005-11-07 07:54:02 -08:00
cp437.uni Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cs5535_gpio.c [PATCH] cs5535_gpio.c: call cdev_del() during module_exit to unmap kobject references and other cleanups 2006-04-20 07:54:03 -07:00
cyclades.c [PATCH] Cyclades Cleanup 2006-06-25 10:01:17 -07:00
decserial.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
defkeymap.c_shipped Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
defkeymap.map Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
digi1.h [PATCH] Clean up the old digi support and rescue it 2005-09-07 16:57:20 -07:00
digi.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
digiFep1.h [PATCH] Clean up the old digi support and rescue it 2005-09-07 16:57:20 -07:00
digiPCI.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ds1286.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ds1302.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ds1620.c [PATCH] char/ds1620: use msleep() instead of schedule_timeout() 2005-06-25 16:24:57 -07:00
dsp56k.c [PATCH] m68k: dsp56k __user annotations 2006-01-12 09:09:04 -08:00
dtlk.c [PATCH] Remove extraneous \n in doubletalk init printk. 2006-04-11 06:18:41 -07:00
ec3104_keyb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
efirtc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
epca.c [PATCH] spin/rwlock init cleanups 2006-06-27 17:32:39 -07:00
epca.h [PATCH] epca iomem annotations + several missing readw() 2005-09-16 10:38:10 -07:00
epcaconfig.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
esp.c [PATCH] Clean up char/esp.c 2006-06-25 10:01:17 -07:00
generic_nvram.c [PATCH] powerpc: Kill _machine and hard-coded platform numbers 2006-03-28 23:15:54 +11:00
generic_serial.c [PATCH] sem2mutex: serial ->port_write_mutex 2006-03-23 07:38:14 -08:00
genrtc.c [PATCH] genrtc: fix read on 64-bit platforms 2006-05-01 18:17:47 -07:00
hangcheck-timer.c [PATCH] hangcheck: remove monotomic_clock on x86 2006-06-26 09:58:20 -07:00
hpet.c HPET: fix ACPI memory range length handling 2006-04-01 22:07:51 -05:00
hvc_console.c [PATCH] powerpc: Make rtas console _much_ faster 2006-06-09 21:24:18 +10:00
hvc_console.h [PATCH] powerpc: hvc_console updates 2006-03-28 16:45:26 +11:00
hvc_rtas.c [PATCH] powerpc: Cleanup hvc_rtas.c a little 2006-06-09 21:24:20 +10:00
hvc_vio.c [PATCH] powerpc: hvc_console updates 2006-03-28 16:45:26 +11:00
hvcs.c [PATCH] Remove redundant NULL checks before [kv]free - in drivers/ 2006-06-27 17:32:48 -07:00
hvsi.c [PATCH] powerpc: Quiet HVSI boot output 2006-04-22 18:45:07 +10:00
i8k.c [PATCH] I8K: fix /proc reporting of blank service tags 2005-11-12 11:42:32 -08:00
ip27-rtc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
isicom.c [PATCH] More !tty cleanups in drivers/char 2006-06-25 10:01:19 -07:00
istallion.c [PATCH] drivers/char/[i]stallion: Clean up kmalloc usage 2006-03-31 12:18:56 -08:00
ite_gpio.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig [PATCH] chardev: GPIO for SCx200 & PC-8736x: add proper Kconfig, Makefile entries 2006-06-27 17:32:43 -07:00
keyboard.c Merge master.kernel.org:/pub/scm/linux/kernel/git/dtor/input 2006-06-26 11:01:58 -07:00
lcd.c Resurrect Cobalt support for 2.6. 2005-10-29 19:30:42 +01:00
lcd.h Resurrect Cobalt support for 2.6. 2005-10-29 19:30:42 +01:00
lp.c [PATCH] Driver Core: fix up all callers of class_device_create() 2005-10-28 09:52:52 -07:00
Makefile [PATCH] chardev: GPIO for SCx200 & PC-8736x: add proper Kconfig, Makefile entries 2006-06-27 17:32:43 -07:00
mbcs.c [IA64] mbcs_init() should give up unless running on sn2 2005-10-04 09:39:18 -07:00
mbcs.h [PATCH] mbcs trivial user annotations 2005-05-04 07:33:13 -07:00
mem.c [PATCH] splice: add ->splice_write support for /dev/null 2006-04-26 14:40:08 +02:00
misc.c [PATCH] mark f_ops const in the inode 2006-03-28 09:16:05 -08:00
mmtimer.c [PATCH] mm: remove VM_LOCKED before remap_pfn_range and drop VM_SHM 2006-06-25 10:00:55 -07:00
moxa.c [PATCH] spin/rwlock init cleanups 2006-06-27 17:32:39 -07:00
mxser.c [PATCH] remove TTY_DONT_FLIP 2006-06-28 14:59:05 -07:00
mxser.h [PATCH] Typo fixes 2006-03-28 09:16:08 -08:00
n_hdlc.c [PATCH] n_hdlc.c: remove unused declaration 2006-01-10 08:02:00 -08:00
n_r3964.c [PATCH] R3964: fix GFP_KERNEL allocations in timer function 2006-06-25 10:01:17 -07:00
n_tty.c [PATCH] remove TTY_DONT_FLIP 2006-06-28 14:59:05 -07:00
nsc_gpio.c [PATCH] chardev: GPIO for SCx200 & PC-8736x: display pin values in/out in gpio_dump 2006-06-27 17:32:43 -07:00
nvram.c [PATCH] drivers/char: Use ARRAY_SIZE macro 2006-01-10 08:01:56 -08:00
nwbutton.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nwbutton.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nwflash.c [PATCH] sem2mutex: drivers/char/ 2006-03-23 07:38:11 -08:00
pc8736x_gpio.c [PATCH] gpio-patchset-fixups: include linux/io.h 2006-06-27 17:32:43 -07:00
ppdev.c [PATCH] parport: move PP_MAJOR from ppdev.h to major.h 2006-03-25 08:22:53 -08:00
pty.c [PATCH] remove TTY_DONT_FLIP 2006-06-28 14:59:05 -07:00
qtronix.c qtronix.c: Handle kmalloc failure. 2005-10-29 19:30:55 +01:00
qtronixmap.c_shipped Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
qtronixmap.map Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
random.c [IPV6]: Unexport secure_ipv6_port_ephemeral 2006-04-09 22:29:17 -07:00
raw.c [PATCH] sem2mutex: drivers: raw, connector, dcdbas, ppp_generic 2006-03-23 07:38:10 -08:00
riscom8_reg.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
riscom8.c [PATCH] Remove MODULE_PARM 2006-03-25 08:22:52 -08:00
riscom8.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rocket_int.h [PATCH] drivers/char/rocket.c: cleanups 2005-06-25 16:25:04 -07:00
rocket.c [PATCH] fix memory leak in rocketport rp_do_receive 2006-06-25 10:01:22 -07:00
rocket.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rtc.c [SPARC64]: Use in-kernel PROM tree for EBUS and ISA. 2006-06-23 23:15:28 -07:00
s3c2410-rtc.c [PATCH] handle errors returned by platform_get_irq*() 2006-03-20 13:42:57 -08:00
scan_keyb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
scan_keyb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
scc.h [PATCH] m68k: static vs. extern in scc.h 2006-01-12 09:09:00 -08:00
scx200_gpio.c [PATCH] chardev: GPIO for SCx200 & PC-8736x: use dev_dbg in common module 2006-06-27 17:32:43 -07:00
selection.c [PATCH] TTY layer buffering revamp 2006-01-10 08:01:59 -08:00
ser_a2232.c [PATCH] sem2mutex: serial ->port_write_mutex 2006-03-23 07:38:14 -08:00
ser_a2232.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ser_a2232fw.ax Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ser_a2232fw.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
serial167.c [PATCH] remove unused tmp_buf_sem's 2006-01-14 10:41:42 -08:00
snsc_event.c [PATCH] snsc kmalloc2kzalloc 2006-03-23 07:38:15 -08:00
snsc.c [PATCH] Altix snsc: duplicate kobject fix 2006-04-22 09:19:53 -07:00
snsc.h [IA64-SGI] Handle SC env. powerdown events 2006-01-26 13:32:26 -08:00
sonypi.c Pull acpi_bus_register_driver into release branch 2006-06-15 21:28:57 -04:00
specialix_io8.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
specialix.c [PATCH] spin/rwlock init cleanups 2006-06-27 17:32:39 -07:00
stallion.c [PATCH] stallion clean up 2006-06-27 17:32:40 -07:00
sx.c [PATCH] spin/rwlock init cleanups 2006-06-27 17:32:39 -07:00
sx.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sxboards.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sxwindow.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
synclink_gt.c [PATCH] synclink_gt: add GT2 adapter support 2006-06-25 10:01:24 -07:00
synclink.c [PATCH] Typo fixes 2006-03-28 09:16:08 -08:00
synclinkmp.c [PATCH] More !tty cleanups in drivers/char 2006-06-25 10:01:19 -07:00
sysrq.c [PATCH] sysrq cleanup 2006-03-25 08:22:52 -08:00
tb0219.c [PATCH] tb0219: convert to the new platform device interface 2006-03-22 07:53:56 -08:00
tipar.c [PATCH] tipar oops fix 2006-04-28 08:33:46 -07:00
tlclk.c [PATCH] type-oh bug in tlclk.c 2006-06-26 14:12:02 -07:00
toshiba.c [PATCH] remove ISA legacy functions: drivers/char/toshiba.c 2006-03-24 07:33:19 -08:00
tty_io.c [PATCH] remove active field from tty buffer structure 2006-06-28 14:59:05 -07:00
tty_ioctl.c [PATCH] coverity: tty_ldisc_ref return null check 2005-06-28 21:20:34 -07:00
vc_screen.c [PATCH] fix ia64 compile failure with gcc4.1 2005-12-29 10:19:21 -08:00
viocons.c [PATCH] powerpc: remove bitfields from HvLpEvent 2006-01-12 20:09:29 +11:00
viotape.c [PATCH] powerpc: update iSeries viocd and viotape device-tree 2006-05-19 14:35:31 +10:00
vme_scc.c [PATCH] sem2mutex: serial ->port_write_mutex 2006-03-23 07:38:14 -08:00
vr41xx_giu.c [PATCH] vr41xx: convert to the new platform device interface 2006-03-22 07:53:56 -08:00
vt_ioctl.c [PATCH] Only disallow _setting_ of function key string 2005-11-07 07:53:39 -08:00
vt.c [PATCH] VT binding: Make VT binding a Kconfig option 2006-06-26 09:58:33 -07:00