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authorBoris Brezillon <boris.brezillon@free-electrons.com>2016-09-16 17:59:15 +0300
committerRichard Weinberger <richard@nod.at>2016-10-02 23:48:14 +0300
commitf9efe8d8a5d54e426da9029f5db78e90ac7a141a (patch)
treef19c00a332254c7d63cad5294b0581fe0b881e89 /drivers/mtd/ubi
parentde4c455b3e9f6306ce7f4245d1ae09d4f1209bb4 (diff)
downloadlinux-f9efe8d8a5d54e426da9029f5db78e90ac7a141a.tar.xz
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>
Diffstat (limited to 'drivers/mtd/ubi')
-rw-r--r--drivers/mtd/ubi/attach.c25
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/mtd/ubi/attach.c b/drivers/mtd/ubi/attach.c
index 6d34cd7b0263..5692b4ce0d9c 100644
--- a/drivers/mtd/ubi/attach.c
+++ b/drivers/mtd/ubi/attach.c
@@ -722,6 +722,9 @@ struct ubi_ainf_volume *ubi_find_av(const struct ubi_attach_info *ai,
&created);
}
+static void destroy_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av,
+ struct list_head *list);
+
/**
* ubi_remove_av - delete attaching information about a volume.
* @ai: attaching information
@@ -729,19 +732,10 @@ struct ubi_ainf_volume *ubi_find_av(const struct ubi_attach_info *ai,
*/
void ubi_remove_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av)
{
- struct rb_node *rb;
- struct ubi_ainf_peb *aeb;
-
dbg_bld("remove attaching information about volume %d", av->vol_id);
- while ((rb = rb_first(&av->root))) {
- aeb = rb_entry(rb, struct ubi_ainf_peb, u.rb);
- rb_erase(&aeb->u.rb, &av->root);
- list_add_tail(&aeb->u.list, &ai->erase);
- }
-
rb_erase(&av->rb, &ai->volumes);
- kfree(av);
+ destroy_av(ai, av, &ai->erase);
ai->vols_found -= 1;
}
@@ -1256,10 +1250,12 @@ static int late_analysis(struct ubi_device *ubi, struct ubi_attach_info *ai)
* destroy_av - free volume attaching information.
* @av: volume attaching information
* @ai: attaching information
+ * @list: put the aeb elements in there if !NULL, otherwise free them
*
* This function destroys the volume attaching information.
*/
-static void destroy_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av)
+static void destroy_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av,
+ struct list_head *list)
{
struct ubi_ainf_peb *aeb;
struct rb_node *this = av->root.rb_node;
@@ -1279,7 +1275,10 @@ static void destroy_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av)
this->rb_right = NULL;
}
- kmem_cache_free(ai->aeb_slab_cache, aeb);
+ if (list)
+ list_add_tail(&aeb->u.list, list);
+ else
+ kmem_cache_free(ai->aeb_slab_cache, aeb);
}
}
kfree(av);
@@ -1334,7 +1333,7 @@ static void destroy_ai(struct ubi_attach_info *ai)
rb->rb_right = NULL;
}
- destroy_av(ai, av);
+ destroy_av(ai, av, NULL);
}
}