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James Smart a90f56847e [SCSI] lpfc 8.1.9 : Stall eh handlers if resetting while rport blocked 
Stall error handler if attempting resets/aborts while an rport is blocked.
This avoids device offline scenarios due to errors in the error handler.

Background:
  Although the transport is using the scsi_timed_out functionality to
  restart the timeout if the rport is blocked, if the timeout has already
  fired before the block occurs, the eh handler still runs and can take
  the device offline. Ultimately, this window cannot be resolved without
  significant work in the error handler thread. Christoph noted the first
  level of these issues when he noted the poor error response handling
  by the error thread.

  We found, under heavy load and error testing, that time window from when
  the scsi_times_out() adds the io to the queue to when the scsi_error_handler
  gets around to servicing it, can be in the several seconds range. In most
  cases, these test conditions are highly unusual, but possible.
  As a result, we're stalling the error handler in this race window so that
  we can avoid the device_offline transitions.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-19 13:46:30 -07:00
..
acorn [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
acpi [PATCH] memory hotadd fixes: avoid registering res twice 2006-08-06 08:57:49 -07:00
amba [PATCH] 64bit resource: fix up printks for resources in misc drivers 2006-06-27 09:23:59 -07:00
atm [ATM]: Typo in drivers/atm/Kconfig... 2006-07-08 13:30:09 -07:00
base [PATCH] cpu hotplug: use hotplug version of registration in late inits 2006-07-31 13:28:39 -07:00
block [PATCH] nbd: Abort request on data reception failure 2006-07-31 13:28:39 -07:00
bluetooth [Bluetooth] Enable SCO support for Broadcom HID proxy dongle 2006-07-24 12:44:34 -07:00
cdrom [PATCH] cdrom: fix bad cgc.buflen assignment 2006-07-10 13:24:15 -07:00
char Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input 2006-08-06 09:12:49 -07:00
clocksource [PATCH] GTOD: add scx200 HRT clocksource 2006-06-26 09:58:21 -07:00
connector [PATCH] Process Events: Fix biarch compatibility issue. use __u64 timestamp 2006-07-31 13:28:36 -07:00
cpufreq [CPUFREQ] [2/2] demand load governor modules. 2006-07-31 18:37:06 -04:00
crypto [CRYPTO] padlock: Fix alignment after aes_ctx rearrange 2006-07-15 11:08:50 +10:00
dio
dma [I/OAT]: Remove pci_module_init() from Intel I/OAT DMA engine 2006-07-21 14:50:13 -07:00
edac [PATCH] drivers/edac/edac_mc.h must #include <linux/platform_device.h> 2006-08-06 08:57:46 -07:00
eisa Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
fc4 [SCSI] More buffer->request_buffer changes 2006-07-14 09:41:13 -05:00
firmware Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
hwmon [PATCH] hwmon: Fix for first generation Abit uGuru chips 2006-07-12 15:43:07 -07:00
i2c [PATCH] SCX200_ACB: eliminate spurious timeout errors 2006-08-06 08:57:49 -07:00
ide Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-07-31 13:39:52 -07:00
ieee1394 [PATCH] ieee1394: sbp2: enable auto spin-up for Maxtor disks 2006-08-06 08:57:48 -07:00
infiniband Merge ../linux-2.6 2006-08-06 12:42:33 -05:00
input Input: atkbd - restore repeat rate when resuming 2006-08-04 22:52:46 -04:00
isdn [PATCH] eicon: fix define conflict with ptrace 2006-08-06 08:57:48 -07:00
leds [PATCH] net48xx LED cleanups 2006-07-14 21:53:54 -07:00
macintosh Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-07-31 13:39:52 -07:00
mca
md [PATCH] md: Fix a bug that recently crept into md/linear 2006-08-06 08:57:46 -07:00
media V4L/DVB (4380): Bttv: Revert VBI_OFFSET to previous value, it works better 2006-07-29 17:22:39 -03:00
message [SCSI] mptfc: correct out of order event processing 2006-08-06 15:48:31 -05:00
mfd [ARM] 3727/1: fix ucb initialization on collie 2006-07-11 22:54:15 +01:00
misc [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
mmc [MMC] Change SDHCI version error to a warning 2006-07-13 16:17:46 +01:00
mtd Merge git://git.infradead.org/mtd-2.6 2006-07-03 21:29:08 -07:00
net [PATCH] myri10ge - Fix spurious invokations of the watchdog reset handler 2006-08-03 17:31:10 -04:00
nubus Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
oprofile [PATCH] oprofile: convert from semaphores to mutexes 2006-06-25 10:01:04 -07:00
parisc [PATCH] irq-flags: PARISC: Use the new IRQF_ constants 2006-07-02 13:58:52 -07:00
parport [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
pci PCI: Unhide the SMBus on Asus PU-DLS 2006-08-03 13:20:06 -07:00
pcmcia [PATCH] pcmcia: fix ioctl GET_CONFIGURATION_INFO for pcmcia_cards 2006-07-31 13:28:41 -07:00
pnp [PATCH] pnpacpi: reject ACPI_PRODUCER resources 2006-08-06 08:57:49 -07:00
rapidio Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
rtc [PATCH] RTC subsystem, Add ISL1208 support 2006-07-14 21:53:53 -07:00
s390 Merge ../linux-2.6 2006-08-06 12:42:33 -05:00
sbus [SPARC] sbus: Make sure sbus nodes are named uniquely. 2006-07-21 14:18:06 -07:00
scsi [SCSI] lpfc 8.1.9 : Stall eh handlers if resetting while rport blocked 2006-08-19 13:46:30 -07:00
serial [SERIAL] sunzilog: Fix instance enumeration. 2006-07-21 14:18:25 -07:00
sh
sn [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
spi [PATCH] lockdep: annotate on-stack completions 2006-07-03 15:27:09 -07:00
tc [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
telephony Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6 2006-06-29 14:19:21 -07:00
usb Input: ati_remote - use msec instead of jiffies 2006-08-04 22:53:37 -04:00
video [PATCH] au1100fb: Fix startup sequence 2006-08-06 08:57:47 -07:00
w1 [PATCH] w1: remove drivers/w1/w1.h 2006-07-12 15:38:28 -07:00
zorro Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
Kconfig
Makefile [PATCH] Time: i386 Clocksource Drivers 2006-06-26 09:58:21 -07:00