mirror of https://gitee.com/openkylin/linux.git
UBI: improve comment
Explain better the purpose of thie 'move_to_put' stuff. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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@ -793,7 +793,7 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
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e1 = rb_entry(rb_first(&ubi->scrub), struct ubi_wl_entry, rb);
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e2 = find_wl_entry(&ubi->free, WL_FREE_MAX_DIFF);
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paranoid_check_in_wl_tree(e1, &ubi->scrub);
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rb_erase(&e1->rb, &ubi->scrub);
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rb_erase(&e1->rb, &ubi->scrub);
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dbg_wl("scrub PEB %d to PEB %d", e1->pnum, e2->pnum);
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}
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@ -1139,8 +1139,11 @@ int ubi_wl_put_peb(struct ubi_device *ubi, int pnum, int torture)
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/*
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* User is putting the physical eraseblock which was selected
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* as the target the data is moved to. It may happen if the EBA
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* unit already re-mapped the LEB but the WL unit did has not
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* put the PEB to the "used" tree.
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* unit already re-mapped the LEB in 'ubi_eba_copy_leb()' but
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* the WL unit has not put the PEB to the "used" tree yet, but
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* it is about to do this. So we just set a flag which will
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* tell the WL worker that the PEB is not needed anymore and
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* should be sheduled for erasure.
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*/
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dbg_wl("PEB %d is the target of data moving", pnum);
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ubi_assert(!ubi->move_to_put);
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