rcu/tree: Maintain separate array for vmalloc ptrs

Browse source

To do so, we use an array of kvfree_rcu_bulk_data structures.
It consists of two elements:
 - index number 0 corresponds to slab pointers.
 - index number 1 corresponds to vmalloc pointers.

Keeping vmalloc pointers separated from slab pointers makes
it possible to invoke the right freeing API for the right
kind of pointer.

It also prepares us for future headless support for vmalloc
and SLAB objects. Such objects cannot be queued on a linked
list and are instead directly into an array.

Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Co-developed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

...

This commit is contained in:

Uladzislau Rezki (Sony) 2020-05-25 23:47:53 +02:00 • committed by Paul E. McKenney

parent 53c72b590b

commit 5f3c8d6204

1 changed files with 100 additions and 73 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

167

kernel/rcu/tree.c

View file