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Message-ID: <20190701084213.1056beab@canb.auug.org.au>
Date: Mon, 1 Jul 2019 08:42:13 +1000
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Christoph Hellwig <hch@....de>
Cc: Linux Next Mailing List <linux-next@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Dan Williams <dan.j.williams@...el.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Fredrik Noring <noring@...rew.org>
Subject: linux-next: manual merge of the dma-mapping tree with Linus' tree
Hi all,
Today's linux-next merge of the dma-mapping tree got a conflict in:
include/linux/genalloc.h
between commit:
795ee30648c7 ("lib/genalloc: introduce chunk owners")
from Linus' tree and commit:
cf394fc5f715 ("lib/genalloc.c: Add algorithm, align and zeroed family of DMA allocators")
from the dma-mapping tree.
I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging. You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.
--
Cheers,
Stephen Rothwell
diff --cc include/linux/genalloc.h
index 205f62b8d291,ed641337df87..000000000000
--- a/include/linux/genalloc.h
+++ b/include/linux/genalloc.h
@@@ -122,47 -116,21 +122,56 @@@ static inline int gen_pool_add(struct g
return gen_pool_add_virt(pool, addr, -1, size, nid);
}
extern void gen_pool_destroy(struct gen_pool *);
-extern unsigned long gen_pool_alloc(struct gen_pool *, size_t);
-extern unsigned long gen_pool_alloc_algo(struct gen_pool *, size_t,
- genpool_algo_t algo, void *data);
+unsigned long gen_pool_alloc_algo_owner(struct gen_pool *pool, size_t size,
+ genpool_algo_t algo, void *data, void **owner);
+
+static inline unsigned long gen_pool_alloc_owner(struct gen_pool *pool,
+ size_t size, void **owner)
+{
+ return gen_pool_alloc_algo_owner(pool, size, pool->algo, pool->data,
+ owner);
+}
+
+static inline unsigned long gen_pool_alloc_algo(struct gen_pool *pool,
+ size_t size, genpool_algo_t algo, void *data)
+{
+ return gen_pool_alloc_algo_owner(pool, size, algo, data, NULL);
+}
+
+/**
+ * gen_pool_alloc - allocate special memory from the pool
+ * @pool: pool to allocate from
+ * @size: number of bytes to allocate from the pool
+ *
+ * Allocate the requested number of bytes from the specified pool.
+ * Uses the pool allocation function (with first-fit algorithm by default).
+ * Can not be used in NMI handler on architectures without
+ * NMI-safe cmpxchg implementation.
+ */
+static inline unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size)
+{
+ return gen_pool_alloc_algo(pool, size, pool->algo, pool->data);
+}
+
extern void *gen_pool_dma_alloc(struct gen_pool *pool, size_t size,
dma_addr_t *dma);
+ extern void *gen_pool_dma_alloc_algo(struct gen_pool *pool, size_t size,
+ dma_addr_t *dma, genpool_algo_t algo, void *data);
+ extern void *gen_pool_dma_alloc_align(struct gen_pool *pool, size_t size,
+ dma_addr_t *dma, int align);
+ extern void *gen_pool_dma_zalloc(struct gen_pool *pool, size_t size, dma_addr_t *dma);
+ extern void *gen_pool_dma_zalloc_algo(struct gen_pool *pool, size_t size,
+ dma_addr_t *dma, genpool_algo_t algo, void *data);
+ extern void *gen_pool_dma_zalloc_align(struct gen_pool *pool, size_t size,
+ dma_addr_t *dma, int align);
-extern void gen_pool_free(struct gen_pool *, unsigned long, size_t);
+extern void gen_pool_free_owner(struct gen_pool *pool, unsigned long addr,
+ size_t size, void **owner);
+static inline void gen_pool_free(struct gen_pool *pool, unsigned long addr,
+ size_t size)
+{
+ gen_pool_free_owner(pool, addr, size, NULL);
+}
+
extern void gen_pool_for_each_chunk(struct gen_pool *,
void (*)(struct gen_pool *, struct gen_pool_chunk *, void *), void *);
extern size_t gen_pool_avail(struct gen_pool *);
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