diff options
| -rw-r--r-- | include/linux/flex_array.h | 10 | ||||
| -rw-r--r-- | lib/flex_array.c | 24 |
2 files changed, 19 insertions, 15 deletions
diff --git a/include/linux/flex_array.h b/include/linux/flex_array.h index 603160db7c98..45ff18491514 100644 --- a/include/linux/flex_array.h +++ b/include/linux/flex_array.h | |||
| @@ -36,12 +36,14 @@ struct flex_array { | |||
| 36 | .total_nr_elements = (total), \ | 36 | .total_nr_elements = (total), \ |
| 37 | } } } | 37 | } } } |
| 38 | 38 | ||
| 39 | struct flex_array *flex_array_alloc(int element_size, int total, gfp_t flags); | 39 | struct flex_array *flex_array_alloc(int element_size, unsigned int total, |
| 40 | int flex_array_prealloc(struct flex_array *fa, int start, int end, gfp_t flags); | 40 | gfp_t flags); |
| 41 | int flex_array_prealloc(struct flex_array *fa, unsigned int start, | ||
| 42 | unsigned int end, gfp_t flags); | ||
| 41 | void flex_array_free(struct flex_array *fa); | 43 | void flex_array_free(struct flex_array *fa); |
| 42 | void flex_array_free_parts(struct flex_array *fa); | 44 | void flex_array_free_parts(struct flex_array *fa); |
| 43 | int flex_array_put(struct flex_array *fa, int element_nr, void *src, | 45 | int flex_array_put(struct flex_array *fa, unsigned int element_nr, void *src, |
| 44 | gfp_t flags); | 46 | gfp_t flags); |
| 45 | void *flex_array_get(struct flex_array *fa, int element_nr); | 47 | void *flex_array_get(struct flex_array *fa, unsigned int element_nr); |
| 46 | 48 | ||
| 47 | #endif /* _FLEX_ARRAY_H */ | 49 | #endif /* _FLEX_ARRAY_H */ |
diff --git a/lib/flex_array.c b/lib/flex_array.c index cf4e372cae90..7baed2fc3bc8 100644 --- a/lib/flex_array.c +++ b/lib/flex_array.c | |||
| @@ -99,7 +99,8 @@ static inline int elements_fit_in_base(struct flex_array *fa) | |||
| 99 | * capacity in the base structure. Also note that no effort is made | 99 | * capacity in the base structure. Also note that no effort is made |
| 100 | * to efficiently pack objects across page boundaries. | 100 | * to efficiently pack objects across page boundaries. |
| 101 | */ | 101 | */ |
| 102 | struct flex_array *flex_array_alloc(int element_size, int total, gfp_t flags) | 102 | struct flex_array *flex_array_alloc(int element_size, unsigned int total, |
| 103 | gfp_t flags) | ||
| 103 | { | 104 | { |
| 104 | struct flex_array *ret; | 105 | struct flex_array *ret; |
| 105 | int max_size = nr_base_part_ptrs() * __elements_per_part(element_size); | 106 | int max_size = nr_base_part_ptrs() * __elements_per_part(element_size); |
| @@ -115,7 +116,8 @@ struct flex_array *flex_array_alloc(int element_size, int total, gfp_t flags) | |||
| 115 | return ret; | 116 | return ret; |
| 116 | } | 117 | } |
| 117 | 118 | ||
| 118 | static int fa_element_to_part_nr(struct flex_array *fa, int element_nr) | 119 | static int fa_element_to_part_nr(struct flex_array *fa, |
| 120 | unsigned int element_nr) | ||
| 119 | { | 121 | { |
| 120 | return element_nr / __elements_per_part(fa->element_size); | 122 | return element_nr / __elements_per_part(fa->element_size); |
| 121 | } | 123 | } |
| @@ -143,14 +145,12 @@ void flex_array_free(struct flex_array *fa) | |||
| 143 | kfree(fa); | 145 | kfree(fa); |
| 144 | } | 146 | } |
| 145 | 147 | ||
| 146 | static int fa_index_inside_part(struct flex_array *fa, int element_nr) | 148 | static unsigned int index_inside_part(struct flex_array *fa, |
| 149 | unsigned int element_nr) | ||
| 147 | { | 150 | { |
| 148 | return element_nr % __elements_per_part(fa->element_size); | 151 | unsigned int part_offset; |
| 149 | } | ||
| 150 | 152 | ||
| 151 | static int index_inside_part(struct flex_array *fa, int element_nr) | 153 | part_offset = element_nr % __elements_per_part(fa->element_size); |
| 152 | { | ||
| 153 | int part_offset = fa_index_inside_part(fa, element_nr); | ||
| 154 | return part_offset * fa->element_size; | 154 | return part_offset * fa->element_size; |
| 155 | } | 155 | } |
| 156 | 156 | ||
| @@ -185,7 +185,8 @@ __fa_get_part(struct flex_array *fa, int part_nr, gfp_t flags) | |||
| 185 | * | 185 | * |
| 186 | * Locking must be provided by the caller. | 186 | * Locking must be provided by the caller. |
| 187 | */ | 187 | */ |
| 188 | int flex_array_put(struct flex_array *fa, int element_nr, void *src, gfp_t flags) | 188 | int flex_array_put(struct flex_array *fa, unsigned int element_nr, void *src, |
| 189 | gfp_t flags) | ||
| 189 | { | 190 | { |
| 190 | int part_nr = fa_element_to_part_nr(fa, element_nr); | 191 | int part_nr = fa_element_to_part_nr(fa, element_nr); |
| 191 | struct flex_array_part *part; | 192 | struct flex_array_part *part; |
| @@ -217,7 +218,8 @@ int flex_array_put(struct flex_array *fa, int element_nr, void *src, gfp_t flags | |||
| 217 | * | 218 | * |
| 218 | * Locking must be provided by the caller. | 219 | * Locking must be provided by the caller. |
| 219 | */ | 220 | */ |
| 220 | int flex_array_prealloc(struct flex_array *fa, int start, int end, gfp_t flags) | 221 | int flex_array_prealloc(struct flex_array *fa, unsigned int start, |
| 222 | unsigned int end, gfp_t flags) | ||
| 221 | { | 223 | { |
| 222 | int start_part; | 224 | int start_part; |
| 223 | int end_part; | 225 | int end_part; |
| @@ -248,7 +250,7 @@ int flex_array_prealloc(struct flex_array *fa, int start, int end, gfp_t flags) | |||
| 248 | * | 250 | * |
| 249 | * Locking must be provided by the caller. | 251 | * Locking must be provided by the caller. |
| 250 | */ | 252 | */ |
| 251 | void *flex_array_get(struct flex_array *fa, int element_nr) | 253 | void *flex_array_get(struct flex_array *fa, unsigned int element_nr) |
| 252 | { | 254 | { |
| 253 | int part_nr = fa_element_to_part_nr(fa, element_nr); | 255 | int part_nr = fa_element_to_part_nr(fa, element_nr); |
| 254 | struct flex_array_part *part; | 256 | struct flex_array_part *part; |
