linux.git/drivers/scsi/lpfc, branch v2.6.19

[PATCH] lockdep: annotate DECLARE_WAIT_QUEUE_HEAD

2006-10-30T20:08:40+00:00

kernel: INFO: trying to register non-static key.
kernel: the code is fine but needs lockdep annotation.
kernel: turning off the locking correctness validator.
kernel:  [] show_trace_log_lvl+0x58/0x16a
kernel:  [] show_trace+0xd/0x10
kernel:  [] dump_stack+0x19/0x1b
kernel:  [] __lock_acquire+0xf0/0x90d
kernel:  [] lock_acquire+0x4b/0x6b
kernel:  [] _spin_lock_irqsave+0x22/0x32
kernel:  [] prepare_to_wait+0x17/0x4b
kernel:  [] lpfc_do_work+0xdd/0xcc2 [lpfc]
kernel:  [] kthread+0xc3/0xf2
kernel:  [] kernel_thread_helper+0x5/0xb

Another case of non-static lockdep keys; duplicate the paradigm set by
DECLARE_COMPLETION_ONSTACK and introduce DECLARE_WAIT_QUEUE_HEAD_ONSTACK.

Signed-off-by: Peter Zijlstra 
Cc: Greg KH 
Cc: Markus Lidel 
Acked-by: Ingo Molnar 
Cc: Arjan van de Ven 
Cc: James Bottomley 
Cc: Marcel Holtmann 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[SCSI] lpfc: fix printk format warning

2006-10-25T22:14:30+00:00

Fix printk format warning:
drivers/scsi/lpfc/lpfc_attr.c:597: warning: long long unsigned int format, uint64_t arg (arg 4)

Signed-off-by: Randy Dunlap 
Acked-by: James Smart 
Signed-off-by: James Bottomley

[SCSI] lpfc: check before dereference in lpfc_ct.c

2006-10-25T22:12:34+00:00

If we fail to allocate mp->virt during the first while loop iteration,
mlist is still uninitialized, therefore we should check if before
dereferencing.

Signed-off-by: Eric Sesterhenn 
Acked-by: James Smart 
Signed-off-by: Andrew Morton 
Signed-off-by: James Bottomley

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05T14:10:12+00:00

Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells 
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

2006-10-05T01:57:35+00:00

* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (54 commits)
  [SCSI] Initial Commit of qla4xxx
  [SCSI] raid class: handle component-add errors
  [SCSI] SCSI megaraid_sas: handle thrown errors
  [SCSI] SCSI aic94xx: handle sysfs errors
  [SCSI] SCSI st: fix error handling in module init, sysfs
  [SCSI] SCSI sd: fix module init/exit error handling
  [SCSI] SCSI osst: add error handling to module init, sysfs
  [SCSI] scsi: remove hosts.h
  [SCSI] scsi: Scsi_Cmnd convertion in aic7xxx_old.c
  [SCSI] megaraid_sas: sets ioctl timeout and updates version,changelog
  [SCSI] megaraid_sas: adds tasklet for cmd completion
  [SCSI] megaraid_sas: prints pending cmds before setting hw_crit_error
  [SCSI] megaraid_sas: function pointer for disable interrupt
  [SCSI] megaraid_sas: frame count optimization
  [SCSI] megaraid_sas: FW transition and q size changes
  [SCSI] qla2xxx: Update version number to 8.01.07-k2.
  [SCSI] qla2xxx: Stall mid-layer error handlers while rport is blocked.
  [SCSI] qla2xxx: Add MODULE_FIRMWARE tags.
  [SCSI] qla2xxx: Add support for host port state FC transport attribute.
  [SCSI] qla2xxx: Add support for fabric name FC transport attribute.
  ...

[PATCH] namespaces: utsname: use init_utsname when appropriate

2006-10-02T14:57:21+00:00

In some places, particularly drivers and __init code, the init utsns is the
appropriate one to use.  This patch replaces those with a the init_utsname
helper.

Changes: Removed several uses of init_utsname().  Hope I picked all the
	right ones in net/ipv4/ipconfig.c.  These are now changed to
	utsname() (the per-process namespace utsname) in the previous
	patch (2/7)

[akpm@osdl.org: CIFS fix]
Signed-off-by: Serge E. Hallyn 
Cc: Kirill Korotaev 
Cc: "Eric W. Biederman" 
Cc: Herbert Poetzl 
Cc: Andrey Savochkin 
Cc: Serge Hallyn 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[SCSI] lpfc: don't free mempool if mailbox is busy

2006-09-26T16:23:15+00:00

Signed-off-by: James Bottomley

[SCSI] lpfc 8.1.10 : Change version number to 8.1.10

2006-09-05T02:25:59+00:00

Change version number to 8.1.10

Signed-off-by: James Smart 
Signed-off-by: James Bottomley

[SCSI] lpfc 8.1.10 : Add support for new lpfc soft_wwpn attribute

2006-09-05T02:25:41+00:00

Add support for a new lpfc soft_wwpn sysfs attribute

Signed-off-by: James Smart 
Signed-off-by: James Bottomley

[SCSI] lpfc 8.1.10 : Add support for dev_loss_tmo_callbk and fast_io_fail_tmo_callbk

2006-09-05T02:25:21+00:00

Add support for new dev_loss_tmo callback
  Goodness is that it removes code for a parallel nodev timer that
  existed in the driver
Add support for the new fast_io_fail callback

Signed-off-by: James Smart 
Signed-off-by: James Bottomley