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authorKent Overstreet <koverstreet@google.com>2012-08-24 15:56:11 +0400
committerKent Overstreet <koverstreet@google.com>2013-03-24 01:15:25 +0400
commit57fb233f078beb5d0437a4ae575fbd4d9eb9c738 (patch)
tree9026554c544acb501bd1528fe91f358a2a1c1d7f /include/linux/bio.h
parenta937536b868b8369b98967929045f1df54234323 (diff)
downloadlinux-57fb233f078beb5d0437a4ae575fbd4d9eb9c738.tar.xz
block: Reorder struct bio_set
This is prep work for the next patch, which embeds a struct bio_list in struct bio_set. Signed-off-by: Kent Overstreet <koverstreet@google.com> CC: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/bio.h')
-rw-r--r--include/linux/bio.h66
1 files changed, 33 insertions, 33 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 820e7aaad4fd..93d3d17a300d 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -298,39 +298,6 @@ static inline int bio_associate_current(struct bio *bio) { return -ENOENT; }
static inline void bio_disassociate_task(struct bio *bio) { }
#endif /* CONFIG_BLK_CGROUP */
-/*
- * bio_set is used to allow other portions of the IO system to
- * allocate their own private memory pools for bio and iovec structures.
- * These memory pools in turn all allocate from the bio_slab
- * and the bvec_slabs[].
- */
-#define BIO_POOL_SIZE 2
-#define BIOVEC_NR_POOLS 6
-#define BIOVEC_MAX_IDX (BIOVEC_NR_POOLS - 1)
-
-struct bio_set {
- struct kmem_cache *bio_slab;
- unsigned int front_pad;
-
- mempool_t *bio_pool;
-#if defined(CONFIG_BLK_DEV_INTEGRITY)
- mempool_t *bio_integrity_pool;
-#endif
- mempool_t *bvec_pool;
-};
-
-struct biovec_slab {
- int nr_vecs;
- char *name;
- struct kmem_cache *slab;
-};
-
-/*
- * a small number of entries is fine, not going to be performance critical.
- * basically we just need to survive
- */
-#define BIO_SPLIT_ENTRIES 2
-
#ifdef CONFIG_HIGHMEM
/*
* remember never ever reenable interrupts between a bvec_kmap_irq and
@@ -527,6 +494,39 @@ static inline struct bio *bio_list_get(struct bio_list *bl)
return bio;
}
+/*
+ * bio_set is used to allow other portions of the IO system to
+ * allocate their own private memory pools for bio and iovec structures.
+ * These memory pools in turn all allocate from the bio_slab
+ * and the bvec_slabs[].
+ */
+#define BIO_POOL_SIZE 2
+#define BIOVEC_NR_POOLS 6
+#define BIOVEC_MAX_IDX (BIOVEC_NR_POOLS - 1)
+
+struct bio_set {
+ struct kmem_cache *bio_slab;
+ unsigned int front_pad;
+
+ mempool_t *bio_pool;
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+ mempool_t *bio_integrity_pool;
+#endif
+ mempool_t *bvec_pool;
+};
+
+struct biovec_slab {
+ int nr_vecs;
+ char *name;
+ struct kmem_cache *slab;
+};
+
+/*
+ * a small number of entries is fine, not going to be performance critical.
+ * basically we just need to survive
+ */
+#define BIO_SPLIT_ENTRIES 2
+
#if defined(CONFIG_BLK_DEV_INTEGRITY)
#define bip_vec_idx(bip, idx) (&(bip->bip_vec[(idx)]))