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authorMichel Lespinasse2012-10-09 01:31:35 +0200
committerLinus Torvalds2012-10-09 09:22:40 +0200
commit9826a516ff77c5820e591211e4f3e58ff36f46be (patch)
treebdec1e2fe5ff95569795069bac73977faba17d57 /include/linux/mm.h
parentrbtree: move augmented rbtree functionality to rbtree_augmented.h (diff)
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mm: interval tree updates
Update the generic interval tree code that was introduced in "mm: replace vma prio_tree with an interval tree". Changes: - fixed 'endpoing' typo noticed by Andrew Morton - replaced include/linux/interval_tree_tmpl.h, which was used as a template (including it automatically defined the interval tree functions) with include/linux/interval_tree_generic.h, which only defines a preprocessor macro INTERVAL_TREE_DEFINE(), which itself defines the interval tree functions when invoked. Now that is a very long macro which is unfortunate, but it does make the usage sites (lib/interval_tree.c and mm/interval_tree.c) a bit nicer than previously. - make use of RB_DECLARE_CALLBACKS() in the INTERVAL_TREE_DEFINE() macro, instead of duplicating that code in the interval tree template. - replaced vma_interval_tree_add(), which was actually handling the nonlinear and interval tree cases, with vma_interval_tree_insert_after() which handles only the interval tree case and has an API that is more consistent with the other interval tree handling functions. The nonlinear case is now handled explicitly in kernel/fork.c dup_mmap(). Signed-off-by: Michel Lespinasse <walken@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Daniel Santos <daniel.santos@pobox.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r--include/linux/mm.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0f671ef09eba..f1d9aaadb566 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1355,11 +1355,11 @@ extern atomic_long_t mmap_pages_allocated;
extern int nommu_shrink_inode_mappings(struct inode *, size_t, size_t);
/* interval_tree.c */
-void vma_interval_tree_add(struct vm_area_struct *vma,
- struct vm_area_struct *old,
- struct address_space *mapping);
void vma_interval_tree_insert(struct vm_area_struct *node,
struct rb_root *root);
+void vma_interval_tree_insert_after(struct vm_area_struct *node,
+ struct vm_area_struct *prev,
+ struct rb_root *root);
void vma_interval_tree_remove(struct vm_area_struct *node,
struct rb_root *root);
struct vm_area_struct *vma_interval_tree_iter_first(struct rb_root *root,