David S. Miller
7c963ad1d1
[SPARC64]: Fix streaming buffer flushing on PCI and SBUS.
...
Firstly, if the direction is TODEVICE, then dirty data in the
streaming cache is impossible so we can elide the flush-flag
synchronization in that case.
Next, the context allocator is broken. It is highly likely
that contexts get used multiple times for different dma
mappings, which confuses the strbuf flushing code and makes
it run inefficiently.
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-31 16:57:59 -07:00
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