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
..
checkpoint.c	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
commit.c	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
journal.c	jbd2: Mark jbd2 slabs as SLAB_TEMPORARY	2008-01-28 23:58:27 -05:00
Makefile
recovery.c	ext4: Add the journal checksum feature	2008-01-28 23:58:27 -05:00
revoke.c	jbd2: Mark jbd2 slabs as SLAB_TEMPORARY	2008-01-28 23:58:27 -05:00
transaction.c	jbd2: sparse pointer use of zero as null	2008-01-28 23:58:27 -05:00