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s390/mm: add __rcu annotations
Add __rcu annotations so sparse correctly warns only if "slot" gets derefenced without using rcu_dereference(). Right now we get warnings because of the missing annotation: arch/s390/mm/gmap.c:135:17: warning: incorrect type in assignment (different address spaces) arch/s390/mm/gmap.c:135:17: expected void **slot arch/s390/mm/gmap.c:135:17: got void [noderef] <asn:4>** Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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1 changed files with 3 additions and 3 deletions
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@ -125,7 +125,7 @@ static void gmap_radix_tree_free(struct radix_tree_root *root)
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struct radix_tree_iter iter;
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unsigned long indices[16];
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unsigned long index;
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void **slot;
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void __rcu **slot;
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int i, nr;
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/* A radix tree is freed by deleting all of its entries */
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@ -150,7 +150,7 @@ static void gmap_rmap_radix_tree_free(struct radix_tree_root *root)
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struct radix_tree_iter iter;
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unsigned long indices[16];
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unsigned long index;
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void **slot;
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void __rcu **slot;
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int i, nr;
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/* A radix tree is freed by deleting all of its entries */
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@ -1011,7 +1011,7 @@ EXPORT_SYMBOL_GPL(gmap_read_table);
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static inline void gmap_insert_rmap(struct gmap *sg, unsigned long vmaddr,
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struct gmap_rmap *rmap)
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{
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void **slot;
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void __rcu **slot;
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BUG_ON(!gmap_is_shadow(sg));
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slot = radix_tree_lookup_slot(&sg->host_to_rmap, vmaddr >> PAGE_SHIFT);
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