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block: remove bdrv_co_lock()

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The bdrv_co_lock() and bdrv_co_unlock() functions are already no-ops.
Remove them.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20231205182011.1976568-8-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2023-12-05 13:20:04 -05:00 committed by Kevin Wolf
parent b49f4755c7
commit c43d5bc858
3 changed files with 0 additions and 29 deletions
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10
block.c
View File

@ -7431,16 +7431,6 @@ void coroutine_fn bdrv_co_leave(BlockDriverState *bs, AioContext *old_ctx)
bdrv_dec_in_flight(bs);
}
void coroutine_fn bdrv_co_lock(BlockDriverState *bs)
{
/* TODO removed in next patch */
}
void coroutine_fn bdrv_co_unlock(BlockDriverState *bs)
{
/* TODO removed in next patch */
}
static void bdrv_do_remove_aio_context_notifier(BdrvAioNotifier *ban)
{
GLOBAL_STATE_CODE();

5
blockdev.c
View File

@ -2264,18 +2264,13 @@ void coroutine_fn qmp_block_resize(const char *device, const char *node_name,
return;
}
bdrv_co_lock(bs);
bdrv_drained_begin(bs);
bdrv_co_unlock(bs);
old_ctx = bdrv_co_enter(bs);
blk_co_truncate(blk, size, false, PREALLOC_MODE_OFF, 0, errp);
bdrv_co_leave(bs, old_ctx);
bdrv_co_lock(bs);
bdrv_drained_end(bs);
bdrv_co_unlock(bs);
blk_co_unref(blk);
}

14
include/block/block-global-state.h
View File

@ -267,20 +267,6 @@ int bdrv_debug_remove_breakpoint(BlockDriverState *bs, const char *tag);
int bdrv_debug_resume(BlockDriverState *bs, const char *tag);
bool bdrv_debug_is_suspended(BlockDriverState *bs, const char *tag);
/**
* Locks the AioContext of @bs if it's not the current AioContext. This avoids
* double locking which could lead to deadlocks: This is a coroutine_fn, so we
* know we already own the lock of the current AioContext.
*
* May only be called in the main thread.
*/
void coroutine_fn bdrv_co_lock(BlockDriverState *bs);
/**
* Unlocks the AioContext of @bs if it's not the current AioContext.
*/
void coroutine_fn bdrv_co_unlock(BlockDriverState *bs);
bool bdrv_child_change_aio_context(BdrvChild *c, AioContext *ctx,
GHashTable *visited, Transaction *tran,
Error **errp);