From d87d01e16a0e59a6af9634162cf0ded142b43e0d Mon Sep 17 00:00:00 2001 From: Alberto Garcia Date: Wed, 21 Oct 2015 21:36:05 +0300 Subject: throttle: Remove throttle_group_lock/unlock() The group throttling code was always meant to handle its locking internally. However, bdrv_swap() was touching the ThrottleGroup structure directly and therefore needed an API for that. Now that bdrv_swap() no longer exists there's no need for the throttle_group_lock() API anymore. Signed-off-by: Alberto Garcia Signed-off-by: Kevin Wolf --- block/throttle-groups.c | 31 +------------------------------ 1 file changed, 1 insertion(+), 30 deletions(-) (limited to 'block') diff --git a/block/throttle-groups.c b/block/throttle-groups.c index 20cb216..3419af7 100644 --- a/block/throttle-groups.c +++ b/block/throttle-groups.c @@ -33,8 +33,7 @@ * its own locking. * * This locking is however handled internally in this file, so it's - * mostly transparent to outside users (but see the documentation in - * throttle_groups_lock()). + * transparent to outside users. * * The whole ThrottleGroup structure is private and invisible to * outside users, that only use it through its ThrottleState. @@ -468,34 +467,6 @@ void throttle_group_unregister_bs(BlockDriverState *bs) bs->throttle_state = NULL; } -/* Acquire the lock of this throttling group. - * - * You won't normally need to use this. None of the functions from the - * ThrottleGroup API require you to acquire the lock since all of them - * deal with it internally. - * - * This should only be used in exceptional cases when you want to - * access the protected fields of a BlockDriverState directly - * (e.g. bdrv_swap()). - * - * @bs: a BlockDriverState that is member of the group - */ -void throttle_group_lock(BlockDriverState *bs) -{ - ThrottleGroup *tg = container_of(bs->throttle_state, ThrottleGroup, ts); - qemu_mutex_lock(&tg->lock); -} - -/* Release the lock of this throttling group. - * - * See the comments in throttle_group_lock(). - */ -void throttle_group_unlock(BlockDriverState *bs) -{ - ThrottleGroup *tg = container_of(bs->throttle_state, ThrottleGroup, ts); - qemu_mutex_unlock(&tg->lock); -} - static void throttle_groups_init(void) { qemu_mutex_init(&throttle_groups_lock); -- cgit v1.1