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linux-uconsole/drivers
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Milton Miller da9dc13289 hvc_console: Do not set low_latency when using interrupts 
hvc_console is setting low_latency unconditionally, but some clients are
interrupt driven and will call hvc_poll from irq context.  This will cause
tty_flip_buffer_push to be called from irq context, and it very clearly
states it must not be called from IRQ when low_latency is specified.

Looking back through history:
v2.6.16-rc1 via 33f0f88f1c
    [PATCH] TTY layer buffering revamp

added this new api.

v2.6.16-rc3 via 8977d929e4
    [PATCH] tty buffering stall fix

claims to fix a stall discovered with hvc_console

v2.6.16-rc5 via fb5c594c2a
   [PATCH] Fix race condition in hvc console.

said set this flag to avoid a stall problem, and was merged through
the powerpc arch tree.

Without searching for email discussions, it would appear to be an
overlapping "fix", but one that did not consider all users.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-01-13 14:48:01 +11:00
..
accessibility
acpi Merge branch 'drivers-platform' into release 2009-01-09 04:56:56 -05:00
amba [ARM] Fix realview build 2009-01-08 16:29:41 +00:00
ata libata: only ports >= 0 need to synchronize 2009-01-10 15:06:52 -08:00
atm generic swap(): iphase: rename swap() to swap_byte_order() 2009-01-08 08:31:14 -08:00
auxdisplay
base Revert "driver core: create a private portion of struct device" 2009-01-09 15:06:12 -08:00
block Merge commit 'gcl/gcl-next' into next 2009-01-13 13:59:11 +11:00
bluetooth
cdrom
char hvc_console: Do not set low_latency when using interrupts 2009-01-13 14:48:01 +11:00
clocksource Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-02 11:44:09 -08:00
connector
cpufreq Merge branch 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-10 06:12:18 -08:00
cpuidle cpuidle: Add decaying history logic to menu idle predictor 2008-12-30 18:48:01 -05:00
crypto
dca dmaengine: bump initcall level to arch_initcall 2009-01-06 11:38:22 -07:00
dio m68k: dio - Kill resource_size_t format warnings 2009-01-12 20:56:42 +01:00
dma ioat: fix self test for multi-channel case 2009-01-06 11:38:22 -07:00
edac edac: driver for i5400 MCH (update) 2009-01-06 15:59:30 -08:00
eisa
firewire firewire: core: fix sleep in atomic context due to driver core change 2009-01-09 23:22:32 +01:00
firmware Make various things static 2009-01-08 08:31:15 -08:00
gpio Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2009-01-06 17:02:07 -08:00
gpu trivial: replace last usages of __FUNCTION__ in kernel 2009-01-07 15:48:54 -08:00
hid Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2009-01-07 15:37:24 -08:00
hwmon LIS3LV02D: separate the core from HP ACPI API 2009-01-09 16:54:42 -08:00
i2c Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2009-01-07 15:37:24 -08:00
ide Merge branch 'linus' into release 2009-01-09 03:39:43 -05:00
idle i7300_idle: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:39 -08:00
ieee1394 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-01-08 11:05:59 -08:00
infiniband fix similar typos to successfull 2009-01-08 08:31:15 -08:00
input input: PCF50633 input driver 2009-01-11 01:34:25 +01:00
isdn Fix small typo 2009-01-11 18:36:30 +01:00
leds leds: ledtrig-timer - on deactivation hardware blinking should be disabled 2009-01-08 20:58:01 +00:00
lguest lguest: do not statically allocate root device 2009-01-06 10:44:34 -08:00
macintosh Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-01-07 11:31:52 -08:00
mca
md md: don't retry recovery of raid1 that fails due to error on source drive. 2009-01-09 08:31:11 +11:00
media Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-01-08 11:05:59 -08:00
memstick memstick: annotate endianness of attribute structs 2009-01-09 16:54:41 -08:00
message Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2009-01-08 16:27:31 -08:00
mfd mfd: Fix twl4030-core build 2009-01-11 01:34:25 +01:00
misc Merge branch 'drivers-platform' into release 2009-01-09 04:56:56 -05:00
mmc Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2009-01-09 11:52:14 -08:00
mtd Merge git://git.infradead.org/mtd-2.6 2009-01-09 12:37:15 -08:00
net powerpc: Cleanup from l64 to ll64 change: drivers/net 2009-01-13 14:48:00 +11:00
nubus
of drivers/of: Add the of_find_i2c_device_by_node function. 2009-01-09 15:49:06 -07:00
oprofile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile 2009-01-09 12:43:06 -08:00
parisc Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2009-01-09 11:53:07 -08:00
parport parport: ieee1284: use del_timer_sync() in parport_wait_event() 2009-01-06 15:59:31 -08:00
pci Merge branch 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-10 06:12:18 -08:00
pcmcia powerpc: Change u64/s64 to a long long integer type 2009-01-13 14:47:59 +11:00
platform hp-wmi: handle rfkill_register() failure 2009-01-09 16:54:41 -08:00
pnp Merge branch 'linus' into release 2009-01-09 03:39:43 -05:00
power power_supply: PCF50633 battery charger driver 2009-01-11 01:34:24 +01:00
ps3
rapidio rapidio: remove excess kernel-doc notation 2009-01-06 15:59:28 -08:00
regulator regulator: PCF50633 pmic driver 2009-01-11 01:34:25 +01:00
rtc rtc: PCF50633 rtc driver 2009-01-11 01:34:24 +01:00
s390 qeth: fix usage of netdev_ops 2009-01-11 00:05:16 -08:00
sbus sparc64: Fix unsigned long long warnings in drivers. 2009-01-06 13:20:38 -08:00
scsi powerpc: Change u64/s64 to a long long integer type 2009-01-13 14:47:59 +11:00
serial neo: Remove a bogus NULL check 2009-01-12 16:37:00 -08:00
sh
sn
spi Xilinx: SPI: updated driver for device tree 2009-01-09 16:01:53 -07:00
ssb
staging Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 2009-01-07 17:22:04 -08:00
tc
telephony
thermal thermal: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:37 -08:00
uio UIO: Pass information about ioports to userspace (V2) 2009-01-06 10:44:44 -08:00
usb ti_usb_3410_5052: add Multi-Tech firmware 2009-01-12 16:37:01 -08:00
uwb Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-01-08 11:05:59 -08:00
video fbdev: Kill Atari vblank cursor blinking 2009-01-12 20:56:43 +01:00
virtio virtio: do not statically allocate root device 2009-01-06 10:44:34 -08:00
w1 w1: send status messages after command processing 2009-01-08 08:31:14 -08:00
watchdog [WATCHDOG] Pika Warp appliance watchdog timer 2009-01-12 20:08:56 +00:00
xen xen: add xenfs to allow usermode <-> Xen interaction 2009-01-08 08:30:59 -08:00
zorro m68k: zorro - Use %pR to print resources 2009-01-12 20:56:43 +01:00
Kconfig
Makefile Merge branch 'drivers-platform' into release 2009-01-09 04:56:56 -05:00