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UBI: improve comment

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Explain better the purpose of thie 'move_to_put' stuff.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Artem Bityutskiy 2007-12-18 13:17:24 +02:00
parent d19bafd99d
commit d2c4685509
1 changed files with 6 additions and 3 deletions
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9
drivers/mtd/ubi/wl.c
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@ -793,7 +793,7 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
e1 = rb_entry(rb_first(&ubi->scrub), struct ubi_wl_entry, rb); e1 = rb_entry(rb_first(&ubi->scrub), struct ubi_wl_entry, rb);
e2 = find_wl_entry(&ubi->free, WL_FREE_MAX_DIFF); e2 = find_wl_entry(&ubi->free, WL_FREE_MAX_DIFF);
paranoid_check_in_wl_tree(e1, &ubi->scrub); paranoid_check_in_wl_tree(e1, &ubi->scrub);
rb_erase(&e1->rb, &ubi->scrub); rb_erase(&e1->rb, &ubi->scrub);
dbg_wl("scrub PEB %d to PEB %d", e1->pnum, e2->pnum); dbg_wl("scrub PEB %d to PEB %d", e1->pnum, e2->pnum);
} }
@ -1139,8 +1139,11 @@ int ubi_wl_put_peb(struct ubi_device *ubi, int pnum, int torture)
/* /*
* User is putting the physical eraseblock which was selected * User is putting the physical eraseblock which was selected
* as the target the data is moved to. It may happen if the EBA * as the target the data is moved to. It may happen if the EBA
* unit already re-mapped the LEB but the WL unit did has not * unit already re-mapped the LEB in 'ubi_eba_copy_leb()' but
* put the PEB to the "used" tree. * the WL unit has not put the PEB to the "used" tree yet, but
* it is about to do this. So we just set a flag which will
* tell the WL worker that the PEB is not needed anymore and
* should be sheduled for erasure.
*/ */
dbg_wl("PEB %d is the target of data moving", pnum); dbg_wl("PEB %d is the target of data moving", pnum);
ubi_assert(!ubi->move_to_put); ubi_assert(!ubi->move_to_put);