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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: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Artem Bityutskiy 2009-06-08 12:49:08 +03:00
parent 2ba3d76a1e
commit 9c259a52fa
1 changed files with 24 additions and 9 deletions
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33
drivers/mtd/ubi/wl.c
View File

@ -656,6 +656,7 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
int cancel) int cancel)
{ {
int err, scrubbing = 0, torture = 0, protect = 0, erroneous = 0; 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_wl_entry *e1, *e2;
struct ubi_vid_hdr *vid_hdr; 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; 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); err = ubi_eba_copy_leb(ubi, e1->pnum, e2->pnum, vid_hdr);
if (err) { if (err) {
if (err == MOVE_CANCEL_RACE) { 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 || if (err == MOVE_CANCEL_BITFLIPS || err == MOVE_TARGET_WR_ERR ||
err == MOVE_TARGET_RD_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; torture = 1;
goto out_not_moved; 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 */ /* The PEB has been successfully moved */
ubi_free_vid_hdr(ubi, vid_hdr);
if (scrubbing) if (scrubbing)
ubi_msg("scrubbed PEB %d, data moved to PEB %d", ubi_msg("scrubbed PEB %d (LEB %d:%d), data moved to PEB %d",
e1->pnum, e2->pnum); e1->pnum, vol_id, lnum, e2->pnum);
ubi_free_vid_hdr(ubi, vid_hdr);
spin_lock(&ubi->wl_lock); spin_lock(&ubi->wl_lock);
if (!ubi->move_to_put) { 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 * Well, the target PEB was put meanwhile, schedule it for
* erasure. * 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); err = schedule_erase(ubi, e2, 0);
if (err) { if (err) {
kmem_cache_free(ubi_wl_entry_slab, e2); kmem_cache_free(ubi_wl_entry_slab, e2);
@ -847,8 +854,12 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
* have been changed, schedule it for erasure. * have been changed, schedule it for erasure.
*/ */
out_not_moved: out_not_moved:
dbg_wl("cancel moving PEB %d to PEB %d (%d)", if (vol_id != -1)
e1->pnum, e2->pnum, err); 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); spin_lock(&ubi->wl_lock);
if (protect) if (protect)
prot_queue_add(ubi, e1); prot_queue_add(ubi, e1);
@ -874,8 +885,12 @@ out_not_moved:
return 0; return 0;
out_error: out_error:
ubi_err("error %d while moving PEB %d to PEB %d", if (vol_id != -1)
err, e1->pnum, e2->pnum); 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); spin_lock(&ubi->wl_lock);
ubi->move_from = ubi->move_to = NULL; ubi->move_from = ubi->move_to = NULL;
ubi->move_to_put = ubi->wl_scheduled = 0; ubi->move_to_put = ubi->wl_scheduled = 0;