Nick Piggin 95c354fe9f spinlock: lockbreak cleanup ... The break_lock data structure and code for spinlocks is quite nasty. Not only does it double the size of a spinlock but it changes locking to a potentially less optimal trylock. Put all of that under CONFIG_GENERIC_LOCKBREAK, and introduce a __raw_spin_is_contended that uses the lock data itself to determine whether there are waiters on the lock, to be used if CONFIG_GENERIC_LOCKBREAK is not set. Rename need_lockbreak to spin_needbreak, make it use spin_is_contended to decouple it from the spinlock implementation, and make it typesafe (rwlocks do not have any need_lockbreak sites -- why do they even get bloated up with that break_lock then?). Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2008-01-30 13:31:20 +01:00
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configs	[IA64] update sn2 defconfig to 64kb pages	2007-10-29 11:32:42 -07:00
dig
hp	[netdrvr] irq handler minor cleanups in several drivers	2008-01-28 15:03:40 -08:00
ia32	x86: PIE executable randomization, checkpatch fixes	2008-01-30 13:31:07 +01:00
kernel	all archs: consolidate init and exit sections in vmlinux.lds.h	2008-01-28 23:21:17 +01:00
lib	[IA64] export copy_page() to modules	2007-12-07 16:10:19 -08:00
mm	[IA64] Avoid unnecessary TLB flushes when allocating memory	2007-12-18 16:56:50 -08:00
oprofile	Combine instrumentation menus in kernel/Kconfig.instrumentation	2007-10-19 11:53:54 -07:00
pci	[IA64] Nail two more simple section mismatch errors	2007-07-25 13:08:41 -07:00
scripts	[IA64] don't assume that unwcheck.py is executable	2007-12-07 14:42:08 -08:00
sn	sched: remove printk_clock references from ia64	2008-01-25 21:07:59 +01:00
defconfig	[IA64] Update arch/ia64/configs/* s/SLAB/SLUB/	2007-08-13 14:54:34 -07:00
install.sh
Kconfig	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
Kconfig.debug
Makefile	[IA64] don't assume that unwcheck.py is executable	2007-12-07 14:42:08 -08:00
module.lds