From: Andreas Gruenbacher Date: Fri, 4 Feb 2011 11:11:05 +0000 (+0100) Subject: drbd: Improve the drbd_find_overlap() documentation X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=70b1987663851f4431a2f43d8ccefb7b6ac73331;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drbd: Improve the drbd_find_overlap() documentation Describe how to reach any further overlapping intervals from the first overlap found. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- diff --git a/drivers/block/drbd/drbd_interval.c b/drivers/block/drbd/drbd_interval.c index 0d17eaa89a69..14dbe2dd2d33 100644 --- a/drivers/block/drbd/drbd_interval.c +++ b/drivers/block/drbd/drbd_interval.c @@ -122,9 +122,11 @@ drbd_remove_interval(struct rb_root *root, struct drbd_interval *this) * @sector: start sector * @size: size, aligned to 512 bytes * - * Returns the interval overlapping with [sector, sector + size), or NULL. - * When there is more than one overlapping interval in the tree, the interval - * with the lowest start sector is returned. + * Returns an interval overlapping with [sector, sector + size), or NULL if + * there is none. When there is more than one overlapping interval in the + * tree, the interval with the lowest start sector is returned, and all other + * overlapping intervals will be on the right side of the tree, reachable with + * rb_next(). */ struct drbd_interval * drbd_find_overlap(struct rb_root *root, sector_t sector, unsigned int size)