android_kernel_motorola_sm6225/drivers
Joe Peterson acc71bbad3 n_tty: Fix hanfling of buffer full corner cases
Fix the handling of input characters when the tty buffer is full or nearly
full.  This includes tests that are done in n_tty_receive_char() and handling
of PARMRK.

Problems with the buffer-full tests done in receive_char() caused characters to
be lost at times when the buffer(s) filled.  Also, these full conditions
would often only be detected with echo on, and PARMRK was not accounted for
properly in all cases.  One symptom of these problems, in addition to lost
characters, was early termination from unix commands like tr and cat when
^Q was used to break from a stopped tty with full buffers (note that breaking
out was often previously not possible, due to the pty getting in "gridlock",
which will be addressed in another patch).  Note space is always reserved
at the end of the buffer for a newline (or EOF/EOL) in canonical mode.

Signed-off-by: Joe Peterson <joe@skyrush.com>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02 10:19:37 -08:00
..
accessibility
acpi Merge branches 'tracing/ftrace', 'tracing/hw-branch-tracing' and 'tracing/ring-buffer'; commit 'v2.6.28' into tracing/core 2008-12-25 13:11:00 +01:00
amba
ata Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-12-30 17:43:10 -08:00
atm atm: Driver for Solos PCI ADSL2+ card. 2008-12-26 01:26:11 -08:00
auxdisplay
base
block Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2008-12-30 17:37:25 -08:00
bluetooth Bluetooth: Enable per-module dynamic debug messages 2008-11-30 12:17:28 +01:00
cdrom cdrom: reduce stack usage of mmc_ioctl_dvd_read_struct 2008-12-29 08:28:43 +01:00
char n_tty: Fix hanfling of buffer full corner cases 2009-01-02 10:19:37 -08:00
clocksource clocksource, acpi_pm.c: put acpi_pm_read_slow() under CONFIG_PCI 2008-12-12 15:05:28 +01:00
connector
cpufreq
cpuidle
crypto crypto: talitos - Ack done interrupt in isr instead of tasklet 2008-12-25 11:02:33 +11:00
dca
dio
dma async_xor: dma_map destination DMA_BIDIRECTIONAL 2008-12-08 13:46:00 -07:00
edac Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2008-12-28 16:54:33 -08:00
eisa
firewire firewire: fw-ohci: fix IOMMU resource exhaustion 2008-12-10 12:45:34 +01:00
firmware DMI: add dmi_match 2008-12-29 07:39:34 -05:00
gpio
gpu drm/i915: fix modeset devname allocation + agp init return check. 2008-12-29 18:18:19 +10:00
hid HID: Apple ALU wireless keyboards are bluetooth devices 2008-11-28 15:09:26 +01:00
hwmon hwmon: applesmc: make applesmc load automatically on startup 2008-12-01 19:55:24 -08:00
i2c Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-12-30 17:36:49 -08:00
ide Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-12-30 17:36:49 -08:00
idle
ieee1394 ieee1394: add quirk fix for Freecom HDD 2008-12-14 01:13:13 +01:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2008-12-30 17:45:28 -08:00
input Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-12-30 17:36:49 -08:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2008-12-28 12:49:40 -08:00
leds
lguest lguest: struct device - replace bus_id with dev_name() 2008-12-30 09:26:12 +10:30
macintosh Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2008-12-28 16:54:33 -08:00
mca
md bio: allow individual slabs in the bio_set 2008-12-29 08:29:23 +01:00
media Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 2008-12-30 17:41:32 -08:00
memstick
message [SCSI] fusion: use ARRAY_SIZE 2008-12-29 11:24:17 -06:00
mfd [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
misc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2008-12-28 12:49:40 -08:00
mmc Merge branch 'rmk-devel-mxc-pu-v2' of git://pasiphae.extern.pengutronix.de/git/imx/linux-2.6 into devel 2008-12-17 20:05:39 +00:00
mtd [ARM] MX3: add NAND support 2008-12-16 14:58:02 +01:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-12-30 17:43:10 -08:00
nubus
of of/gpio: Implement of_gpio_count() 2008-12-21 14:21:14 +11:00
oprofile shrink struct dentry 2008-12-31 18:07:38 -05:00
parisc
parport parport_serial: fix array overflow 2008-12-01 19:55:24 -08:00
pci Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-12-30 16:20:19 -08:00
pcmcia Merge branch 'mxc-pu-imxfb' of git://pasiphae.extern.pengutronix.de/git/imx/linux-2.6 into devel 2008-12-17 20:04:45 +00:00
pnp
power
ps3
rapidio rapidio: struct device - replace bus_id with dev_name(), dev_set_name() 2008-12-16 15:53:41 +11:00
regulator
rtc Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-12-30 17:36:49 -08:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-12-30 17:43:10 -08:00
sbus Revert "of_platform_driver noise on sparce" 2008-12-01 07:55:14 -08:00
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-12-30 17:43:10 -08:00
serial Blackfin Serial Driver: Remove BI status for known_good_char 2009-01-02 10:19:35 -08:00
sh sh: maple: Do not pass SLAB_POISON to kmem_cache_create() 2008-12-16 16:40:32 +09:00
sn
spi Merge git://git.marvell.com/orion into devel 2008-12-13 09:12:51 +00:00
ssb
staging Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2008-12-28 12:49:40 -08:00
tc
telephony
thermal
uio
usb sierra: Fix formatting 2009-01-02 10:19:36 -08:00
uwb
video Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-12-30 17:36:49 -08:00
virtio virtio: add PCI device release() function 2008-12-30 09:26:10 +10:30
w1 w1: fix slave selection on big-endian systems 2008-12-23 15:58:21 -08:00
watchdog Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel 2008-12-29 18:08:11 +00:00
xen Merge branch 'irq-fixes-for-linus-4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-12-31 09:00:59 -08:00
zorro
Kconfig
Makefile