The patch titled
LIB: add gen_pool_destroy()
has been added to the -mm tree. Its filename is
lib-add-gen_pool_destroy.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: LIB: add gen_pool_destroy()
From: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
Modules using the genpool allocator need to be able to destroy the data
structure when unloading.
Signed-off-by: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxx>
Cc: Dean Nelson <dcn@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/genalloc.h | 1 +
lib/genalloc.c | 22 ++++++++++++++++++++++
2 files changed, 23 insertions(+)
diff -puN include/linux/genalloc.h~lib-add-gen_pool_destroy include/linux/genalloc.h
--- a/include/linux/genalloc.h~lib-add-gen_pool_destroy
+++ a/include/linux/genalloc.h
@@ -30,6 +30,7 @@ struct gen_pool_chunk {
};
extern struct gen_pool *gen_pool_create(int, int);
+extern void gen_pool_destroy(struct gen_pool *);
extern int gen_pool_add(struct gen_pool *, unsigned long, size_t, int);
extern unsigned long gen_pool_alloc(struct gen_pool *, size_t);
extern void gen_pool_free(struct gen_pool *, unsigned long, size_t);
diff -puN lib/genalloc.c~lib-add-gen_pool_destroy lib/genalloc.c
--- a/lib/genalloc.c~lib-add-gen_pool_destroy
+++ a/lib/genalloc.c
@@ -36,6 +36,28 @@ EXPORT_SYMBOL(gen_pool_create);
/*
+ * Destroy a memory pool. Assumes the user deals with releasing the
+ * actual memory managed by the pool.
+ *
+ * @pool: pool to destroy.
+ *
+ */
+void gen_pool_destroy(struct gen_pool *pool)
+{
+ struct list_head *_chunk, *next;
+ struct gen_pool_chunk *chunk;
+
+ list_for_each_safe(_chunk, next, &pool->chunks) {
+ chunk = list_entry(_chunk, struct gen_pool_chunk, next_chunk);
+ kfree(chunk);
+ }
+ kfree(pool);
+ return;
+}
+EXPORT_SYMBOL(gen_pool_destroy);
+
+
+/*
* Add a new chunk of memory to the specified pool.
*
* @pool: pool to add new memory chunk to
_
Patches currently in -mm which might be from swise@xxxxxxxxxxxxxxxxxxxxx are
origin.patch
lib-add-gen_pool_destroy.patch
make-genpool-allocator-adhere-to-kernel-doc-standards.patch
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