[Devel] [PATCH rh7 v2 00/10] tcache: Manage LRU lists under per-filesystem lock

[Kirill Tkhai]

Hi, this is the second version of patchset "Manage LRU lists under per-filesystem lock".

Changes:
	Added patch [5/10] to precalculate rb_first of reclaim tree.
	Added cleanup [4/5].
	Also, small changes made to minimize patches lenght.

The patchset may have a continue, and we may try think how to escape
of ni->lock completely in the future. Also, tcache_nodeinfo::nr_pages
may be made per-cpu (or something like that), but this agenda is not for
this patchset.

---

Kirill Tkhai (10):
      tcache: Decrement removed from LRU pages out of __tcache_lru_del()
      tcache: Add tcache_pool_nodeinfo::lock
      tcache: Cleanup unused expression from tcache_lru_isolate()
      tcache: Remove excess variable from tcache_lru_isolate()
      tcache: Cache rb_first() of reclaim tree in tcache_nodeinfo::rb_first
      tcache: Make tcache_lru_isolate() keep ni->lock less
      tcache: Move erase-insert logic out of tcache_check_events()
      tcache: Make tcache_nodeinfo::nr_pages atomic_long_t
      tcache: Use ni->lock only for inserting and erasing from rbtree.
      tcache: Move add/sub out of pni->lock


 mm/tcache.c |  137 ++++++++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 93 insertions(+), 44 deletions(-)

--
Signed-off-by: Kirill Tkhai <ktkhai at virtuozzo.com>