Messages in this thread Patch in this message | | | Date | Thu, 16 Dec 2004 15:01:05 -0500 | From | Rajesh Venkatasubramanian <> | Subject | Re: [RFC] Generalized prio_tree, revisited |
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Werner Almesberger wrote: > You mean to roll prio_tree_first and prio_tree_iter_init into a > single call, so that prio_tree_first would look similar to the > one in 2.6.7 ?
Something like this...
--- linux-2.6.9-testuser/include/linux/prio_tree.h | 1 + linux-2.6.9-testuser/mm/prio_tree.c | 3 +++ 2 files changed, 4 insertions(+) diff -puN include/linux/prio_tree.h~roll_prio_tree_first include/linux/prio_tree.h --- linux-2.6.9/include/linux/prio_tree.h~roll_prio_tree_first 2004-12-16 14:52:46.878268680 -0500 +++ linux-2.6.9-testuser/include/linux/prio_tree.h 2004-12-16 14:55:18.731183528 -0500 @@ -29,6 +29,7 @@ static inline void prio_tree_iter_init(s iter->root = root; iter->r_index = r_index; iter->h_index = h_index; + iter->cur = NULL; } #define INIT_PRIO_TREE_ROOT(ptr) \ diff -puN mm/prio_tree.c~roll_prio_tree_first mm/prio_tree.c --- linux-2.6.9/mm/prio_tree.c~roll_prio_tree_first 2004-12-16 14:55:27.695820696 -0500 +++ linux-2.6.9-testuser/mm/prio_tree.c 2004-12-16 14:56:31.889061840 -0500 @@ -457,6 +457,9 @@ static struct prio_tree_node *prio_tree_ { unsigned long r_index, h_index; + if (iter->cur == NULL) + return prio_tree_first(iter); + repeat: while (prio_tree_left(iter, &r_index, &h_index)) if (overlap(iter, r_index, h_index)) _ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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