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f4d6d00466
android_kernel_xiaomi_sm7250/drivers
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Tejun Heo f4d6d00466 libata: ignore EH scheduling during initialization 
libata enables SCSI host during ATA host activation which happens
after IRQ handler is registered and IRQ is enabled.  All ATA ports are
in frozen state when IRQ is enabled but frozen ports may raise limited
number of IRQs after being frozen - IOW, ->freeze() is not responsible
for clearing pending IRQs.  During normal operation, the IRQ handler
is responsible for clearing spurious IRQs on frozen ports and it
usually doesn't require any extra code.

Unfortunately, during host initialization, the IRQ handler can end up
scheduling EH for a port whose SCSI host isn't initialized yet.  This
results in OOPS in the SCSI midlayer.  This is relatively short window
and scheduling EH for probing is the first thing libata does after
initialization, so ignoring EH scheduling until initialization is
complete solves the problem nicely.

This problem was spotted by Berck E. Nash in the following thread.

  http://thread.gmane.org/gmane.linux.kernel/519412

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Berck E. Nash <flyboy@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-11 18:09:18 -04:00
..
acorn
acpi Pull misc-for-upstream into release branch 2007-05-10 04:06:12 -04:00
amba uevent: use add_uevent_var() instead of open coding it 2007-04-27 10:57:29 -07:00
ata libata: ignore EH scheduling during initialization 2007-05-11 18:09:18 -04:00
atm PCI: Cleanup the includes of <linux/pci.h> 2007-05-02 19:02:35 -07:00
auxdisplay [S390] Kconfig: refine depends statements. 2007-05-10 15:46:07 +02:00
base Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-05-09 12:54:17 -07:00
block [S390] Kconfig: use common Kconfig files for s390. 2007-05-10 15:46:08 +02:00
bluetooth [Bluetooth] Fix unintentional fall-through in HCI line discipline 2007-05-10 23:45:06 -07:00
cdrom mm: remove destroy_dirty_buffers from invalidate_bdev() 2007-05-07 12:12:55 -07:00
char Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2007-05-11 12:53:21 -07:00
clocksource ACPI: correct pathname in comment 2007-04-25 14:27:06 -04:00
connector [NETLINK]: Switch cb_lock spinlock to mutex and allow to override it 2007-04-25 22:29:03 -07:00
cpufreq Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
crypto [S390] Kconfig: use common Kconfig files for s390. 2007-05-10 15:46:08 +02:00
dio
dma [S390] Kconfig: unwanted menus for s390. 2007-05-10 15:46:07 +02:00
edac [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
eisa virtual_eisa_root_init() should be __init 2007-05-08 11:15:02 -07:00
fc4
firewire firewire: Convert OHCI driver to use standard goto unwinding for error handling. 2007-05-10 18:24:14 +02:00
firmware remove "struct subsystem" as it is no longer needed 2007-05-02 18:57:59 -07:00
hid USB HID: hiddev - fix race between hiddev_send_event() and hiddev_release() 2007-05-10 08:45:56 +02:00
hwmon Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2007-05-10 11:50:51 -07:00
i2c Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2007-05-10 11:50:51 -07:00
ide [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
ieee1394 Merge branch 'juju' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2007-05-10 13:30:08 -07:00
infiniband [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
input Input: evdev - fix overflow in compat_ioctl 2007-05-11 09:08:04 -07:00
isdn [S390] Kconfig: unwanted menus for s390. 2007-05-10 15:46:07 +02:00
kvm [S390] Kconfig: refine depends statements. 2007-05-10 15:46:07 +02:00
leds [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
macintosh Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6 2007-05-09 15:41:31 -07:00
mca mca: add integrated device bus matching 2007-05-09 12:30:49 -07:00
md md: improve the is_mddev_idle test 2007-05-11 08:29:37 -07:00
media Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb 2007-05-11 12:57:16 -07:00
message [S390] Kconfig: refine depends statements. 2007-05-10 15:46:07 +02:00
mfd [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
misc Pull misc-for-upstream into release branch 2007-05-10 04:06:12 -04:00
mmc [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
mtd [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
net Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-ip22 2007-05-11 10:00:50 -07:00
nubus
oprofile
parisc header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
parport [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
pci [IA64] Fix warnings resulting from type-checking in dev_dbg() 2007-05-10 09:39:41 -07:00
pcmcia fix hotplug for legacy platform drivers 2007-05-08 11:15:10 -07:00
pnp [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
ps3 Merge branch 'linux-2.6' 2007-05-08 13:37:51 +10:00
rapidio
rtc Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2007-05-11 09:59:50 -07:00
s390 [S390] Kconfig: use common Kconfig files for s390. 2007-05-10 15:46:08 +02:00
sbus Fix misspellings collected by members of KJ list. 2007-05-09 07:14:03 +02:00
scsi Convert SGI IP22 and specific drivers to platform_device. 2007-05-11 17:00:29 +01:00
serial Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-10 13:32:24 -07:00
sh
sn
spi MPC52xx PSC SPI master driver 2007-05-11 08:29:35 -07:00
tc
telephony [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
usb [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
video VIDEO: remove archaic if[] construct from Kconfig file 2007-05-11 08:29:37 -07:00
w1 [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
zorro Amiga Zorro bus: kill resource_size_t warnings 2007-05-04 17:59:08 -07:00
Kconfig
Makefile Merge branch 'juju' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2007-05-10 13:30:08 -07:00