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
..
allocpercpu.c
backing-dev.c
bootmem.c
bounce.c
fadvise.c
filemap_xip.c
filemap.c
fremap.c
highmem.c
hugetlb.c
internal.h
Kconfig	sh: Bump number of quicklists for SH-5.	2008-01-28 13:18:55 +09:00
madvise.c
Makefile
memory_hotplug.c
memory.c	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
mempolicy.c
mempool.c
migrate.c
mincore.c
mlock.c
mmap.c	x86: randomize brk	2008-01-30 13:30:40 +01:00
mmzone.c
mprotect.c
mremap.c
msync.c
nommu.c
oom_kill.c	sched: sched_rt_entity	2008-01-25 21:08:27 +01:00
page_alloc.c
page_io.c
page_isolation.c
page-writeback.c
pdflush.c
prio_tree.c
quicklist.c
readahead.c
rmap.c
shmem_acl.c
shmem.c
slab.c	cpu-hotplug: replace per-subsystem mutexes with get_online_cpus()	2008-01-25 21:08:02 +01:00
slob.c
slub.c	Kobject: convert mm/slub.c to use kobject_init/add_ng()	2008-01-24 20:40:31 -08:00
sparse-vmemmap.c
sparse.c
swap_state.c
swap.c
swapfile.c
thrash.c
tiny-shmem.c
truncate.c
util.c
vmalloc.c
vmscan.c
vmstat.c