Skip to content

K
Kernel

openeuler / Kernel
1 年多 前同步成功

通知 8
Star 0
Fork 0
K
Kernel
切换分支/标签
  1. 09 5月, 2007 1 次提交
  3. 06 5月, 2007 1 次提交
  5. 01 4月, 2007 1 次提交
  7. 13 2月, 2007 1 次提交
  9. 14 12月, 2006 1 次提交
    • R
      [PATCH] getting rid of all casts of k[cmz]alloc() calls · 5cbded58
      由 Robert P. J. Day 提交于 
      Run this:

	#!/bin/sh
	for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
	  echo "De-casting $f..."
	  perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
	done

And then go through and reinstate those cases where code is casting pointers
to non-pointers.

And then drop a few hunks which conflicted with outstanding work.

Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      5cbded58
  11. 05 10月, 2006 2 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
    • H
      [SCSI] scsi: remove hosts.h · de77aaff
      由 Henne 提交于 
      Remove the obsolete hosts.h file under drivers/scsi.
Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      de77aaff
  13. 24 9月, 2006 1 次提交
  15. 20 8月, 2006 1 次提交
  17. 03 7月, 2006 1 次提交
  19. 29 3月, 2006 1 次提交
  21. 15 1月, 2006 1 次提交
    • S
      [SCSI] I2O: move pci_request_regions() just behind pci_enable_device() · 9638d89a
      由 Salyzyn, Mark 提交于 
      The problem in dpt_i2o could be the pci config space accesses it
triggers as it loads, dangerous to do if there is any I/O activity going
on in the other driver (probable if a boot driver I guess).

I approve this patch to dpt_i2o.c, and am applying it to the Adaptec
branch of the driver.

Thanks for the investigation Ryoji.

---

In linux 2.6.15, data transfer does hang when both dpt_i2o
and i2o_block drivers are loaded.
It seems that location of pci_request_regions() are wrong.
I moved it just behind pci_enable_device() like other drivers,
and it becomes fine.
Signed-off-by: NRyoji Kamei <kamei@miraclelinux.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      9638d89a
  23. 13 1月, 2006 1 次提交
  25. 19 12月, 2005 1 次提交
  27. 28 11月, 2005 1 次提交
  29. 07 11月, 2005 2 次提交
  31. 10 8月, 2005 1 次提交
  33. 09 8月, 2005 1 次提交
  35. 11 7月, 2005 1 次提交
  37. 27 6月, 2005 1 次提交
  39. 26 6月, 2005 1 次提交
  41. 24 6月, 2005 1 次提交
  43. 18 6月, 2005 1 次提交
  45. 21 5月, 2005 2 次提交
    • B
      [SCSI] drivers/scsi/dpt_i2o.c: fix compile warnings · 1c2fb3f3
      由 Benoit Boissinot 提交于 
      This patch fixes the following warnings:

drivers/scsi/dpt_i2o.c: In function ‘adpt_isr’:
drivers/scsi/dpt_i2o.c:2030: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast
drivers/scsi/dpt_i2o.c:2031: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast
drivers/scsi/dpt_i2o.c:2042: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast
drivers/scsi/dpt_i2o.c:2043: warning: passing argument 2 of ‘writel’ makes pointer from integer without a cast
drivers/scsi/dpt_i2o.c:2046: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast
drivers/scsi/dpt_i2o.c:2048: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast
drivers/scsi/dpt_i2o.c:2055: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast
drivers/scsi/dpt_i2o.c:2062: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast
drivers/scsi/dpt_i2o.c:2069: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast
drivers/scsi/dpt_i2o.c: In function ‘adpt_i2o_to_scsi’: drivers/scsi/dpt_i2o.c:2239: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast
drivers/scsi/dpt_i2o.c:2243: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast
drivers/scsi/dpt_i2o.c:2248: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast
drivers/scsi/dpt_i2o.c:2259: warning: passing argument 1 of ‘readl’ makes pointer from integer without a cast

It define variables which are only used with a type of 'void __iomem *'
with this type instead of the incorrect 'unsigned long' type.
It also remove pointless casts.
Signed-off-by: NBenoit Boissinot <benoit.boissinot@ens-lyon.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      1c2fb3f3
    • B
      [SCSI] drivers/scsi/dpt_i2o.c: cleanup useless code · 23a2bc22
      由 Benoit Boissinot 提交于 
      This patch removes the array 'hbas' as it seems to be useless
and redundant with the linked list hbas_chain.
Signed-off-by: NBenoit Boissinot <benoit.boissinot@ens-lyon.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      23a2bc22
  47. 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