Johannes Weiner 4d693d0860 lib: radix-tree: update callback for changing leaf nodes
Support handing __radix_tree_replace() a callback that gets invoked for
all leaf nodes that change or get freed as a result of the slot
replacement, to assist users tracking nodes with node->private_list.

This prepares for putting page cache shadow entries into the radix tree
root again and drastically simplifying the shadow tracking.

Link: http://lkml.kernel.org/r/20161117193134.GD23430@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Suggested-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox <mawilcox@linuxonhyperv.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-12 18:55:08 -08:00
..
2016-12-12 18:55:07 -08:00
2016-12-12 18:55:07 -08:00
2015-09-08 15:35:28 -07:00
2016-03-17 15:09:34 -07:00
2015-11-05 19:34:48 -08:00
2016-10-24 19:13:20 -07:00
2016-03-17 15:09:34 -07:00
2016-12-12 18:55:06 -08:00
2016-10-07 18:46:27 -07:00