From 23c482ef7b7611225f70efe46a3627b889cab1a4 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Tue, 28 Oct 2014 16:18:42 +0100 Subject: UBI: Add accessor functions for WL data structures Fastmap need access to various WL data structures as fastmap tightly depends on WL. To make the access less invasive add accessor functions. Signed-off-by: Richard Weinberger --- drivers/mtd/ubi/ubi.h | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) (limited to 'drivers/mtd') diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h index adc633cb89c3..3d58c749f9f1 100644 --- a/drivers/mtd/ubi/ubi.h +++ b/drivers/mtd/ubi/ubi.h @@ -904,6 +904,42 @@ static inline int ubiblock_remove(struct ubi_volume_info *vi) } #endif +/* + * ubi_for_each_free_peb - walk the UBI free RB tree. + * @ubi: UBI device description object + * @e: a pointer to a ubi_wl_entry to use as cursor + * @pos: a pointer to RB-tree entry type to use as a loop counter + */ +#define ubi_for_each_free_peb(ubi, e, tmp_rb) \ + ubi_rb_for_each_entry((tmp_rb), (e), &(ubi)->free, u.rb) + +/* + * ubi_for_each_used_peb - walk the UBI used RB tree. + * @ubi: UBI device description object + * @e: a pointer to a ubi_wl_entry to use as cursor + * @pos: a pointer to RB-tree entry type to use as a loop counter + */ +#define ubi_for_each_used_peb(ubi, e, tmp_rb) \ + ubi_rb_for_each_entry((tmp_rb), (e), &(ubi)->used, u.rb) + +/* + * ubi_for_each_scub_peb - walk the UBI scub RB tree. + * @ubi: UBI device description object + * @e: a pointer to a ubi_wl_entry to use as cursor + * @pos: a pointer to RB-tree entry type to use as a loop counter + */ +#define ubi_for_each_scrub_peb(ubi, e, tmp_rb) \ + ubi_rb_for_each_entry((tmp_rb), (e), &(ubi)->scrub, u.rb) + +/* + * ubi_for_each_protected_peb - walk the UBI protection queue. + * @ubi: UBI device description object + * @i: a integer used as counter + * @e: a pointer to a ubi_wl_entry to use as cursor + */ +#define ubi_for_each_protected_peb(ubi, i, e) \ + for ((i) = 0; (i) < UBI_PROT_QUEUE_LEN; (i)++) \ + list_for_each_entry((e), &(ubi->pq[(i)]), u.list) /* * ubi_rb_for_each_entry - walk an RB-tree. -- cgit v1.2.3