linux-hardened/fs/fscache
Tejun Heo 8b8edefa2f fscache: convert object to use workqueue instead of slow-work
Make fscache object state transition callbacks use workqueue instead
of slow-work.  New dedicated unbound CPU workqueue fscache_object_wq
is created.  get/put callbacks are renamed and modified to take
@object and called directly from the enqueue wrapper and the work
function.  While at it, make all open coded instances of get/put to
use fscache_get/put_object().

* Unbound workqueue is used.

* work_busy() output is printed instead of slow-work flags in object
  debugging outputs.  They mean basically the same thing bit-for-bit.

* sysctl fscache.object_max_active added to control concurrency.  The
  default value is nr_cpus clamped between 4 and
  WQ_UNBOUND_MAX_ACTIVE.

* slow_work_sleep_till_thread_needed() is replaced with fscache
  private implementation fscache_object_sleep_till_congested() which
  waits on fscache_object_wq congestion.

* debugfs support is dropped for now.  Tracing API based debug
  facility is planned to be added.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David Howells <dhowells@redhat.com>
2010-07-22 22:58:34 +02:00
..
cache.c FS-Cache: Add counters for entry/exit to/from cache operation functions 2009-11-19 18:11:08 +00:00
cookie.c FS-Cache: Add a retirement stat counter 2009-11-19 18:11:38 +00:00
fsdef.c FS-Cache: Root index definition 2009-04-03 16:42:37 +01:00
histogram.c FS-Cache: Add use of /proc and presentation of statistics 2009-04-03 16:42:37 +01:00
internal.h fscache: convert object to use workqueue instead of slow-work 2010-07-22 22:58:34 +02:00
Kconfig FS-Cache: Remove the EXPERIMENTAL flag 2010-03-08 07:32:34 -08:00
main.c fscache: convert object to use workqueue instead of slow-work 2010-07-22 22:58:34 +02:00
Makefile FS-Cache: Allow the current state of all objects to be dumped 2009-11-19 18:11:04 +00:00
netfs.c FS-Cache: Add netfs registration 2009-04-03 16:42:38 +01:00
object-list.c fscache: convert object to use workqueue instead of slow-work 2010-07-22 22:58:34 +02:00
object.c fscache: convert object to use workqueue instead of slow-work 2010-07-22 22:58:34 +02:00
operation.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
page.c FS-Cache: Remove unneeded null checks 2010-06-01 13:32:11 -07:00
proc.c FS-Cache: Allow the current state of all objects to be dumped 2009-11-19 18:11:04 +00:00
stats.c fs-cache: order the debugfs stats correctly 2010-04-07 08:38:05 -07:00