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Commit 9c259a52 authored by Artem Bityutskiy's avatar Artem Bityutskiy
Browse files

UBI: improve messages in the WL worker 



Print not only the PEB number, but also the LEB number and volume id,
which is very useful for bug hunting.

Signed-off-by: default avatarArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
parent 2ba3d76a

drivers/mtd/ubi/wl.c

+24 −9
Original line number Diff line number Diff line
@@ -656,6 +656,7 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk, 
				int cancel)

{

	int err, scrubbing = 0, torture = 0, protect = 0, erroneous = 0;

	int vol_id = -1, uninitialized_var(lnum);

	struct ubi_wl_entry *e1, *e2;

	struct ubi_vid_hdr *vid_hdr;
@@ -757,6 +758,9 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk, 
		goto out_error;

	}



	vol_id = be32_to_cpu(vid_hdr->vol_id);

	lnum = be32_to_cpu(vid_hdr->lnum);



	err = ubi_eba_copy_leb(ubi, e1->pnum, e2->pnum, vid_hdr);

	if (err) {

		if (err == MOVE_CANCEL_RACE) {
@@ -773,7 +777,9 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk, 


		if (err == MOVE_CANCEL_BITFLIPS || err == MOVE_TARGET_WR_ERR ||

		    err == MOVE_TARGET_RD_ERR) {

			/* Target PEB bit-flips or write error, torture it */

			/*

			 * Target PEB had bit-flips or write error - torture it.

			 */

			torture = 1;

			goto out_not_moved;

		}
@@ -803,10 +809,10 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk, 
	}



	/* The PEB has been successfully moved */

	ubi_free_vid_hdr(ubi, vid_hdr);

	if (scrubbing)

		ubi_msg("scrubbed PEB %d, data moved to PEB %d",

			e1->pnum, e2->pnum);

		ubi_msg("scrubbed PEB %d (LEB %d:%d), data moved to PEB %d",

			e1->pnum, vol_id, lnum, e2->pnum);

	ubi_free_vid_hdr(ubi, vid_hdr);



	spin_lock(&ubi->wl_lock);

	if (!ubi->move_to_put) {
@@ -829,7 +835,8 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk, 
		 * Well, the target PEB was put meanwhile, schedule it for

		 * erasure.

		 */

		dbg_wl("PEB %d was put meanwhile, erase", e2->pnum);

		dbg_wl("PEB %d (LEB %d:%d) was put meanwhile, erase",

		       e2->pnum, vol_id, lnum);

		err = schedule_erase(ubi, e2, 0);

		if (err) {

			kmem_cache_free(ubi_wl_entry_slab, e2);
@@ -847,6 +854,10 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk, 
	 * have been changed, schedule it for erasure.

	 */

out_not_moved:

	if (vol_id != -1)

		dbg_wl("cancel moving PEB %d (LEB %d:%d) to PEB %d (%d)",

		       e1->pnum, vol_id, lnum, e2->pnum, err);

	else

		dbg_wl("cancel moving PEB %d to PEB %d (%d)",

		       e1->pnum, e2->pnum, err);

	spin_lock(&ubi->wl_lock);
@@ -874,8 +885,12 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk, 
	return 0;



out_error:

	if (vol_id != -1)

		ubi_err("error %d while moving PEB %d to PEB %d",

			err, e1->pnum, e2->pnum);

	else

		ubi_err("error %d while moving PEB %d (LEB %d:%d) to PEB %d",

			err, e1->pnum, vol_id, lnum, e2->pnum);

	spin_lock(&ubi->wl_lock);

	ubi->move_from = ubi->move_to = NULL;

	ubi->move_to_put = ubi->wl_scheduled = 0;