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[JFFS2] Add some preemptive BUG checks for XATTR code
In a couple of places, we assume that what's at the end of the ->next_in_ino list is a struct jffs2_inode_cache. Let's check for that, since we expect it to change soon. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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@ -230,6 +230,7 @@ static inline void jffs2_remove_node_refs_from_ino_list(struct jffs2_sb_info *c,
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at the end of the linked list. Stash it and continue
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from the beginning of the list */
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ic = (struct jffs2_inode_cache *)(*prev);
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BUG_ON(ic->class != RAWNODE_CLASS_INODE_CACHE);
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prev = &ic->nodes;
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continue;
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}
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@ -661,6 +661,10 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
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spin_lock(&c->erase_completion_lock);
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ic = jffs2_raw_ref_to_ic(ref);
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/* It seems we should never call jffs2_mark_node_obsolete() for
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XATTR nodes.... yet. Make sure we notice if/when we change
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that :) */
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BUG_ON(ic->class != RAWNODE_CLASS_INODE_CACHE);
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for (p = &ic->nodes; (*p) != ref; p = &((*p)->next_in_ino))
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;
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