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authorJens Axboe <jaxboe@fusionio.com>2010-11-11 13:37:54 +0100
committerJens Axboe <jaxboe@fusionio.com>2010-11-11 13:40:11 +0100
commitcedb4a7d9f6aedb0dce94d6285b69dcb3c10fa05 (patch)
tree49a6b255a727421658cb917321ad3e29c8bd9fc0
parent17a9e7bbae178d1326e4631ab6350a272349c99d (diff)
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block: remove unused copy_io_context()
Reported-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
-rw-r--r--block/blk-ioc.c14
-rw-r--r--include/linux/iocontext.h1
2 files changed, 0 insertions, 15 deletions
diff --git a/block/blk-ioc.c b/block/blk-ioc.c
index d22c4c55c40..3c7a339fe38 100644
--- a/block/blk-ioc.c
+++ b/block/blk-ioc.c
@@ -153,20 +153,6 @@ struct io_context *get_io_context(gfp_t gfp_flags, int node)
}
EXPORT_SYMBOL(get_io_context);
-void copy_io_context(struct io_context **pdst, struct io_context **psrc)
-{
- struct io_context *src = *psrc;
- struct io_context *dst = *pdst;
-
- if (src) {
- BUG_ON(atomic_long_read(&src->refcount) == 0);
- atomic_long_inc(&src->refcount);
- put_io_context(dst);
- *pdst = src;
- }
-}
-EXPORT_SYMBOL(copy_io_context);
-
static int __init blk_ioc_init(void)
{
iocontext_cachep = kmem_cache_create("blkdev_ioc",
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index 3e70b21884a..b2eee896dcb 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -76,7 +76,6 @@ int put_io_context(struct io_context *ioc);
void exit_io_context(struct task_struct *task);
struct io_context *get_io_context(gfp_t gfp_flags, int node);
struct io_context *alloc_io_context(gfp_t gfp_flags, int node);
-void copy_io_context(struct io_context **pdst, struct io_context **psrc);
#else
static inline void exit_io_context(struct task_struct *task)
{