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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2017-05-09 14:44:43 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-06-12 17:25:55 +0300 |
| commit | d12a3d603690ba84b7e3fd357f05b96e777d4630 (patch) | |
| tree | 2f22092366da708da5de9ca33f0349e549d79f1b /arch/s390/mm/gmap.c | |
| parent | cb4ef3c20bd95e21dddc1101133d90ac7f049a53 (diff) | |
| download | linux-d12a3d603690ba84b7e3fd357f05b96e777d4630.tar.xz | |
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>
Diffstat (limited to 'arch/s390/mm/gmap.c')
| -rw-r--r-- | arch/s390/mm/gmap.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c index fbd664e48098..4fb3d3cdb370 100644 --- a/arch/s390/mm/gmap.c +++ b/arch/s390/mm/gmap.c @@ -125,7 +125,7 @@ static void gmap_radix_tree_free(struct radix_tree_root *root) struct radix_tree_iter iter; unsigned long indices[16]; unsigned long index; - void **slot; + void __rcu **slot; int i, nr; /* A radix tree is freed by deleting all of its entries */ @@ -150,7 +150,7 @@ static void gmap_rmap_radix_tree_free(struct radix_tree_root *root) struct radix_tree_iter iter; unsigned long indices[16]; unsigned long index; - void **slot; + void __rcu **slot; int i, nr; /* A radix tree is freed by deleting all of its entries */ @@ -1011,7 +1011,7 @@ EXPORT_SYMBOL_GPL(gmap_read_table); static inline void gmap_insert_rmap(struct gmap *sg, unsigned long vmaddr, struct gmap_rmap *rmap) { - void **slot; + void __rcu **slot; BUG_ON(!gmap_is_shadow(sg)); slot = radix_tree_lookup_slot(&sg->host_to_rmap, vmaddr >> PAGE_SHIFT); |