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| author | Dan Williams <dan.j.williams@intel.com> | 2009-01-06 11:38:14 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-01-06 11:38:14 -0700 |
| commit | 2ba05622b8b143b0c95968ba59bddfbd6d2f2559 (patch) | |
| tree | b7b72d02a993ff2ba731d6608f4ab8ce87482bcb /include/linux/async_tx.h | |
| parent | bec085134e446577a983f17f57d642a88d1af53b (diff) | |
| download | linux-2ba05622b8b143b0c95968ba59bddfbd6d2f2559.tar.gz linux-2ba05622b8b143b0c95968ba59bddfbd6d2f2559.tar.bz2 linux-2ba05622b8b143b0c95968ba59bddfbd6d2f2559.zip | |
dmaengine: provide a common 'issue_pending_all' implementation
async_tx and net_dma each have open-coded versions of issue_pending_all,
so provide a common routine in dmaengine.
The implementation needs to walk the global device list, so implement
rcu to allow dma_issue_pending_all to run lockless. Clients protect
themselves from channel removal events by holding a dmaengine reference.
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'include/linux/async_tx.h')
| -rw-r--r-- | include/linux/async_tx.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h index 1c816775f135..45f6297821bd 100644 --- a/include/linux/async_tx.h +++ b/include/linux/async_tx.h @@ -59,7 +59,7 @@ enum async_tx_flags { }; #ifdef CONFIG_DMA_ENGINE -void async_tx_issue_pending_all(void); +#define async_tx_issue_pending_all dma_issue_pending_all #ifdef CONFIG_ARCH_HAS_ASYNC_TX_FIND_CHANNEL #include <asm/async_tx.h> #else |