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authorJens Axboe <jens.axboe@oracle.com>2008-02-01 11:34:49 +0100
committerJens Axboe <jens.axboe@oracle.com>2008-02-01 11:34:49 +0100
commit3bc217ffe6774e7971d6a7ce6350ce806ebab044 (patch)
treeb1ccad14a0c23f12248092feb867d2e311db59f0 /block/blk-ioc.c
parent8bdd3f8a6993fef2f364aca6e1a59559405773a2 (diff)
downloadlinux-linaro-stable-3bc217ffe6774e7971d6a7ce6350ce806ebab044.tar.gz
block: kill swap_io_context()
It blindly copies everything in the io_context, including the lock. That doesn't work so well for either lock ordering or lockdep. There seems zero point in swapping io contexts on a request to request merge, so the best point of action is to just remove it. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/blk-ioc.c')
-rw-r--r--block/blk-ioc.c9
1 files changed, 0 insertions, 9 deletions
diff --git a/block/blk-ioc.c b/block/blk-ioc.c
index 6d1675508eb5..80245dc30c75 100644
--- a/block/blk-ioc.c
+++ b/block/blk-ioc.c
@@ -176,15 +176,6 @@ void copy_io_context(struct io_context **pdst, struct io_context **psrc)
}
EXPORT_SYMBOL(copy_io_context);
-void swap_io_context(struct io_context **ioc1, struct io_context **ioc2)
-{
- struct io_context *temp;
- temp = *ioc1;
- *ioc1 = *ioc2;
- *ioc2 = temp;
-}
-EXPORT_SYMBOL(swap_io_context);
-
int __init blk_ioc_init(void)
{
iocontext_cachep = kmem_cache_create("blkdev_ioc",