tmp_suning_uos_patched/kernel/locking
Josh Triplett 64b47e8fdb lglock: map to spinlock when !CONFIG_SMP
When the system has only one CPU, lglock is effectively a spinlock; map
it directly to spinlock to eliminate the indirection and duplicate code.

In addition to removing overhead, this drops 1.6k of code with a
defconfig modified to have !CONFIG_SMP, and 1.1k with a minimal config.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Howells <dhowells@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-07 16:36:14 -07:00
..
lglock.c
lockdep_internals.h
lockdep_proc.c
lockdep_states.h
lockdep.c Merge branch 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-03-31 14:13:25 -07:00
locktorture.c rcutorture: Add a lock_busted to test the test 2014-02-23 09:04:43 -08:00
Makefile lglock: map to spinlock when !CONFIG_SMP 2014-04-07 16:36:14 -07:00
mcs_spinlock.c locking/mutexes: Introduce cancelable MCS lock for adaptive spinning 2014-03-11 12:14:56 +01:00
mcs_spinlock.h locking/mutexes: Introduce cancelable MCS lock for adaptive spinning 2014-03-11 12:14:56 +01:00
mutex-debug.c locking/mutex: Fix debug checks 2014-03-12 13:49:47 +01:00
mutex-debug.h
mutex.c Merge branch 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-03-31 14:13:25 -07:00
mutex.h
percpu-rwsem.c
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c sched: Consider pi boosting in setscheduler() 2014-02-22 18:10:04 +01:00
rtmutex.h
rwsem-spinlock.c
rwsem-xadd.c asmlinkage: Mark rwsem functions that can be called from assembler asmlinkage 2014-02-13 18:13:37 -08:00
rwsem.c
semaphore.c
spinlock_debug.c
spinlock.c