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UBI: factorize destroy_av() and ubi_remove_av() code
Those functions are pretty much doing the same thing, except ubi_remove_av() is putting the aeb elements attached to the volume into the ai->erase list and the destroy_av() is freeing them. Rework destroy_av() to handle both cases. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Richard Weinberger <richard@nod.at>
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1 changed files with 12 additions and 13 deletions
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@ -722,6 +722,9 @@ struct ubi_ainf_volume *ubi_find_av(const struct ubi_attach_info *ai,
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&created);
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}
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static void destroy_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av,
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struct list_head *list);
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/**
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* ubi_remove_av - delete attaching information about a volume.
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* @ai: attaching information
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@ -729,19 +732,10 @@ struct ubi_ainf_volume *ubi_find_av(const struct ubi_attach_info *ai,
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*/
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void ubi_remove_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av)
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{
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struct rb_node *rb;
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struct ubi_ainf_peb *aeb;
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dbg_bld("remove attaching information about volume %d", av->vol_id);
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while ((rb = rb_first(&av->root))) {
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aeb = rb_entry(rb, struct ubi_ainf_peb, u.rb);
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rb_erase(&aeb->u.rb, &av->root);
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list_add_tail(&aeb->u.list, &ai->erase);
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}
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rb_erase(&av->rb, &ai->volumes);
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kfree(av);
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destroy_av(ai, av, &ai->erase);
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ai->vols_found -= 1;
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}
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@ -1256,10 +1250,12 @@ static int late_analysis(struct ubi_device *ubi, struct ubi_attach_info *ai)
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* destroy_av - free volume attaching information.
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* @av: volume attaching information
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* @ai: attaching information
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* @list: put the aeb elements in there if !NULL, otherwise free them
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*
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* This function destroys the volume attaching information.
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*/
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static void destroy_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av)
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static void destroy_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av,
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struct list_head *list)
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{
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struct ubi_ainf_peb *aeb;
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struct rb_node *this = av->root.rb_node;
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@ -1279,7 +1275,10 @@ static void destroy_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av)
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this->rb_right = NULL;
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}
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kmem_cache_free(ai->aeb_slab_cache, aeb);
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if (list)
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list_add_tail(&aeb->u.list, list);
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else
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kmem_cache_free(ai->aeb_slab_cache, aeb);
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}
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}
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kfree(av);
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@ -1334,7 +1333,7 @@ static void destroy_ai(struct ubi_attach_info *ai)
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rb->rb_right = NULL;
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}
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destroy_av(ai, av);
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destroy_av(ai, av, NULL);
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}
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}
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