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  1. 06 1月, 2012 1 次提交
    • A
      watchdog: Use DEFINE_SPINLOCK() for static spinlocks · 1334f329
      由 Axel Lin 提交于 
      Rather than just defining static spinlock_t variables and then
initializing them later in init functions, simply define them with
DEFINE_SPINLOCK() and remove the calls to spin_lock_init().
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Cc: Nicolas Thill <nico@openwrt.org>
Cc: Heiko Ronsdorf <hero@ihg.uni-duisburg.de>
Cc: Rodolfo Giometti <giometti@ascensit.com>
Cc: Andrey Panin <pazke@donpac.ru>
Cc: Guido Guenther <agx@sigxcpu.org>
Cc: Curt E Bruns <curt.e.bruns@intel.com>
Cc: Deepak Saxena <dsaxena@plexity.net>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: George G. Davis <gdavis@mvista.com>
Cc: Sylver Bruneau <sylver.bruneau@googlemail.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
      1334f329
  3. 06 11月, 2011 1 次提交
  5. 16 3月, 2011 1 次提交
  7. 25 5月, 2010 1 次提交
  9. 07 3月, 2010 1 次提交
  11. 25 3月, 2009 1 次提交
  13. 29 10月, 2008 1 次提交
  15. 07 8月, 2008 1 次提交
  17. 06 8月, 2008 1 次提交
    • W
      [WATCHDOG] Coding style - Indentation - part 2 · 0c06090c
      由 Wim Van Sebroeck 提交于 
      This brings the watchdog drivers into line with coding style.
This patch takes cares of the indentation as described in chapter 1.
Main changes:
* Re-structure the ioctl switch call for all drivers as follows:
	switch (cmd) {
	case WDIOC_GETSUPPORT:
	case WDIOC_GETSTATUS:
	case WDIOC_GETBOOTSTATUS:
	case WDIOC_GETTEMP:
	case WDIOC_SETOPTIONS:
	case WDIOC_KEEPALIVE:
	case WDIOC_SETTIMEOUT:
	case WDIOC_GETTIMEOUT:
	case WDIOC_GETTIMELEFT:
	default:
	}

This to make the migration from the drivers to the uniform watchdog
device driver easier in the future.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
      0c06090c
  19. 27 5月, 2008 1 次提交
  21. 18 10月, 2007 1 次提交
  23. 17 8月, 2007 1 次提交
  25. 27 3月, 2007 1 次提交
  27. 28 1月, 2007 1 次提交
  29. 05 10月, 2006 1 次提交
    • D
      IRQ: Maintain regs pointer globally rather than passing to IRQ handlers · 7d12e780
      由 David Howells 提交于 
      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: NDavid Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
      7d12e780
  31. 03 10月, 2006 1 次提交
  33. 04 7月, 2006 1 次提交
  35. 03 7月, 2006 1 次提交
  37. 01 7月, 2006 1 次提交
  39. 28 7月, 2005 1 次提交
  41. 27 7月, 2005 2 次提交
  43. 17 4月, 2005 1 次提交
    • L
      Linux-2.6.12-rc2 · 1da177e4
      由 Linus Torvalds 提交于 
      Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
      1da177e4