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Commit b32b78f8 authored by Richard Weinberger's avatar Richard Weinberger
Browse files

ubi: Introduce in_pq() 



This function works like in_wl_tree() but checks whether an ubi_wl_entry
is currently in the protection queue.
We need this function to query the current state of an ubi_wl_entry.

Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
parent a3b22b9f

drivers/mtd/ubi/wl.c

+23 −7
Original line number Diff line number Diff line
@@ -277,6 +277,27 @@ static int in_wl_tree(struct ubi_wl_entry *e, struct rb_root *root) 
	return 0;

}



/**

 * in_pq - check if a wear-leveling entry is present in the protection queue.

 * @ubi: UBI device description object

 * @e: the wear-leveling entry to check

 *

 * This function returns non-zero if @e is in the protection queue and zero

 * if it is not.

 */

static inline int in_pq(const struct ubi_device *ubi, struct ubi_wl_entry *e)

{

	struct ubi_wl_entry *p;

	int i;



	for (i = 0; i < UBI_PROT_QUEUE_LEN; ++i)

		list_for_each_entry(p, &ubi->pq[i], u.list)

			if (p == e)

				return 1;



	return 0;

}



/**

 * prot_queue_add - add physical eraseblock to the protection queue.

 * @ubi: UBI device description object
@@ -1848,15 +1869,10 @@ static int self_check_in_wl_tree(const struct ubi_device *ubi, 
static int self_check_in_pq(const struct ubi_device *ubi,

			    struct ubi_wl_entry *e)

{

	struct ubi_wl_entry *p;

	int i;



	if (!ubi_dbg_chk_gen(ubi))

		return 0;



	for (i = 0; i < UBI_PROT_QUEUE_LEN; ++i)

		list_for_each_entry(p, &ubi->pq[i], u.list)

			if (p == e)

	if (in_pq(ubi, e))

		return 0;



	ubi_err(ubi, "self-check failed for PEB %d, EC %d, Protect queue",