linux.git/arch/parisc/kernel/cache.c, branch v2.6.33

parisc: ensure broadcast tlb purge runs single threaded

2009-07-03T03:34:09+00:00

The TLB flushing functions on hppa, which causes PxTLB broadcasts on the system
bus, needs to be protected by irq-safe spinlocks to avoid irq handlers to deadlock
the kernel. The deadlocks only happened during I/O intensive loads and triggered
pretty seldom, which is why this bug went so long unnoticed.

Signed-off-by: Helge Deller 
[edited to use spin_lock_irqsave on UP as well since we'd been locking there
 all this time anyway, --kyle]
Signed-off-by: Kyle McMartin

parisc: remove CVS keywords

2009-07-03T03:34:06+00:00

Signed-off-by: Alexander Beregalov 
Acked-by: Matthew Wilcox 
Acked-by: Grant Grundler 
Signed-off-by: Kyle McMartin

parisc: BUG_ON() cleanup

2009-03-13T05:16:35+00:00

- convert a few "if (xx) BUG();" to BUG_ON(xx)
- remove a few printk()s, as we get a backtrace with BUG_ON() anyway

Signed-off-by: Helge Deller 
Signed-off-by: Kyle McMartin

on_each_cpu(): kill unused 'retry' parameter

2008-06-26T09:24:38+00:00

It's not even passed on to smp_call_function() anymore, since that
was removed. So kill it.

Acked-by: Jeremy Fitzhardinge 
Reviewed-by: Paul E. McKenney 
Signed-off-by: Jens Axboe

arch/parisc/: Spelling fixes

2008-02-03T14:58:20+00:00

Signed-off-by: Joe Perches 
Signed-off-by: Adrian Bunk

Detach sched.h from mm.h

2007-05-21T16:18:19+00:00

First thing mm.h does is including sched.h solely for can_do_mlock() inline
function which has "current" dereference inside. By dealing with can_do_mlock()
mm.h can be detached from sched.h which is good. See below, why.

This patch
a) removes unconditional inclusion of sched.h from mm.h
b) makes can_do_mlock() normal function in mm/mlock.c
c) exports can_do_mlock() to not break compilation
d) adds sched.h inclusions back to files that were getting it indirectly.
e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were
   getting them indirectly

Net result is:
a) mm.h users would get less code to open, read, preprocess, parse, ... if
   they don't need sched.h
b) sched.h stops being dependency for significant number of files:
   on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,
   after patch it's only 3744 (-8.3%).

Cross-compile tested on

	all arm defconfigs, all mips defconfigs, all powerpc defconfigs,
	alpha alpha-up
	arm
	i386 i386-up i386-defconfig i386-allnoconfig
	ia64 ia64-up
	m68k
	mips
	parisc parisc-up
	powerpc powerpc-up
	s390 s390-up
	sparc sparc-up
	sparc64 sparc64-up
	um-x86_64
	x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig

as well as my two usual configs.

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Linus Torvalds

[PARISC] Fixes /proc/cpuinfo cache output on B160L

2007-02-17T06:15:16+00:00

Signed-off-by: Helge Deller 
Signed-off-by: Kyle McMartin

[PARISC] Clean up the cache and tlb headers

2007-02-17T05:41:30+00:00

No changes in functionality.

Signed-off-by: Randolph Chung 
Signed-off-by: Kyle McMartin

[PARISC] Export clear_user_page to modules

2006-10-04T12:51:16+00:00

Signed-off-by: Matthew Wilcox 
Signed-off-by: Kyle McMartin

[PARISC] Fix CONFIG_DEBUG_SPINLOCK

2006-10-04T12:50:46+00:00

Joel Soete points out that we refer to pa_tlb_lock but only define it if
CONFIG_SMP which breaks a uniprocessor build with CONFIG_DEBUG_SPINLOCK
enabled.  No module refers to pa_tlb_lock, so we can delete the export.

Signed-off-by: Matthew Wilcox 
Signed-off-by: Kyle McMartin