linux-kernel - [PATCH 30/35] UBI: Add accessor functions for WL data structures

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Message-Id: <1414586758-9972-31-git-send-email-richard@nod.at>
Date:	Wed, 29 Oct 2014 13:45:53 +0100
From:	Richard Weinberger <richard@....at>
To:	dedekind1@...il.com
Cc:	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	tlinder@...eaurora.org, Richard Weinberger <richard@....at>
Subject: [PATCH 30/35] 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 <richard@....at>
---
 drivers/mtd/ubi/ubi.h | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 9a37fe3..e159aa1 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -895,6 +895,42 @@ 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
+ * @tmp_e: a pointer to a ubi_wl_entry to use as temporary storage
+ */
+#define ubi_for_each_free_peb(ubi, e, tmp_e)	\
+	rbtree_postorder_for_each_entry_safe((e), (tmp_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
+ * @tmp_e: a pointer to a ubi_wl_entry to use as temporary storage
+ */
+#define ubi_for_each_used_peb(ubi, e, tmp_e)	\
+	rbtree_postorder_for_each_entry_safe((e), (tmp_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
+ * @tmp_e: a pointer to a ubi_wl_entry to use as temporary storage
+ */
+#define ubi_for_each_scrub_peb(ubi, e, tmp_e)	\
+	rbtree_postorder_for_each_entry_safe((e), (tmp_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.
-- 
1.8.4.5

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