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[2/2] kernel/resource: enrich the comment for insert_resource_conflict()

Message ID 1311852512-7340-3-git-send-email-dengcheng.zhu@gmail.com (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Deng-Cheng Zhu July 28, 2011, 11:28 a.m. UTC 
It helps people better understand how this function works.

Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
---
 kernel/resource.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
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Patch

diff --git a/kernel/resource.c b/kernel/resource.c
index 3ff4017..5406ecf 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -617,7 +617,9 @@  static struct resource * __insert_resource(struct resource *parent, struct resou
  * happens. If a conflict happens, and the conflicting resources
  * entirely fit within the range of the new resource, then the new
  * resource is inserted and the conflicting resources become children of
- * the new resource.
+ * the new resource. Also, if the new resource entirely fits within the range
+ * of a conflicting resource without overlapping the latter's children, then
+ * the new resource is inserted too and becomes a child of the conflicting one.
  */
 struct resource *insert_resource_conflict(struct resource *parent, struct resource *new)
 {