The patch titled
Subject: kmem: add slab-specific documentation about the kmem controller
has been removed from the -mm tree. Its filename was
kmem-add-slab-specific-documentation-about-the-kmem-controller.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Glauber Costa <glommer@xxxxxxxxxxxxx>
Subject: kmem: add slab-specific documentation about the kmem controller
Signed-off-by: Glauber Costa <glommer@xxxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxxx>
Cc: Greg Thelen <gthelen@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: JoonSoo Kim <js1304@xxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Suleiman Souhlal <suleiman@xxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/cgroups/memory.txt | 7 +++++++
1 file changed, 7 insertions(+)
diff -puN Documentation/cgroups/memory.txt~kmem-add-slab-specific-documentation-about-the-kmem-controller Documentation/cgroups/memory.txt
--- a/Documentation/cgroups/memory.txt~kmem-add-slab-specific-documentation-about-the-kmem-controller
+++ a/Documentation/cgroups/memory.txt
@@ -301,6 +301,13 @@ to trigger slab reclaim when those limit
kernel memory, we prevent new processes from being created when the kernel
memory usage is too high.
+* slab pages: pages allocated by the SLAB or SLUB allocator are tracked. A copy
+of each kmem_cache is created everytime the cache is touched by the first time
+from inside the memcg. The creation is done lazily, so some objects can still be
+skipped while the cache is being created. All objects in a slab page should
+belong to the same memcg. This only fails to hold when a task is migrated to a
+different memcg during the page allocation by the cache.
+
* sockets memory pressure: some sockets protocols have memory pressure
thresholds. The Memory Controller allows them to be controlled individually
per cgroup, instead of globally.
_
Patches currently in -mm which might be from glommer@xxxxxxxxxxxxx are
origin.patch
memcg-debugging-facility-to-access-dangling-memcgs.patch
memcg-debugging-facility-to-access-dangling-memcgs-fix.patch
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