mirror_zfs/module/spl
Brian Behlendorf a10287e00d kmem-cache: Use taskqs for ageing
Shift the cache and magazine ageing functionality over to the new
delayed taskq interfaces.  This allows us to abandon the kernels
delayed work queue interface and all the compatibility code it
requires.

However, the delayed taskq interface does not allow us to schedule
a task for a specfic cpu so the ageing code was slightly reworked.
The magazine ageing delay has been directly linked to the cache
ageing function.  The spl_cache_age() function invokes on_each_cpu()
in order to run spl_magazine_age() on each cpu.  It then blocks
waiting for them to complete and promptly reclaims any free slabs.

When restructing the code wasn't the primary goal I think the
new code is far more understable and maintainable.  It also should
help minimize magazine thrashing because free slabs are immediately
released after the magazine is aged.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2012-12-12 09:56:54 -08:00
..
Makefile.in Add script for builtin module building. 2012-07-26 15:13:09 -07:00
spl-atomic.c Linux 2.6.39 compat, DEFINE_SPINLOCK() 2011-04-20 12:01:11 -07:00
spl-condvar.c Condition variable reference counts 2012-11-06 14:48:55 -08:00
spl-cred.c Add crgetfsuid()/crgetfsgid() helpers 2011-03-22 12:18:44 -07:00
spl-debug.c Wrap trace_set_debug_header in trace_[get|put]_tcd 2012-08-23 10:01:20 -07:00
spl-err.c Add --enable-debug-log configure option 2012-02-02 11:27:54 -08:00
spl-generic.c Determine the hostid on demand. 2012-07-26 15:14:02 -07:00
spl-kmem.c kmem-cache: Use taskqs for ageing 2012-12-12 09:56:54 -08:00
spl-kobj.c Remove VN_HOLD/VN_RELE/VOP_PUTPAGE 2011-01-12 11:38:05 -08:00
spl-kstat.c Add KSTAT_TYPE_TXG type 2012-11-02 15:17:40 -07:00
spl-mutex.c Fix undefined reference on spl_mutex_spin_max(). 2012-07-26 14:54:53 -07:00
spl-proc.c Improved vmem cached deadlock detection 2012-11-06 14:54:15 -08:00
spl-rwlock.c Public Release Prep 2010-05-17 15:18:00 -07:00
spl-taskq.c taskq delay/cancel functionality 2012-12-12 09:54:07 -08:00
spl-thread.c Switch KM_SLEEP to KM_PUSHPAGE 2012-09-12 12:27:09 -07:00
spl-time.c Minor 32-bit fix cast to hrtime_t before the mutliply. 2010-05-23 09:51:17 -07:00
spl-tsd.c Switch KM_SLEEP to KM_PUSHPAGE 2012-10-11 16:22:29 -07:00
spl-vnode.c Handle errors from spl_kern_path_locked() 2012-12-03 12:06:25 -08:00
spl-xdr.c Prefix all SPL debug macros with 'S' 2010-07-20 13:30:40 -07:00
spl-zlib.c Set KMC_NOEMERGENCY for zlib workspaces 2012-09-07 14:36:26 -07:00