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OpenCloudOS-Kernel
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Author SHA1 Message Date
Matthew Wilcox 399154be2d dmapool: Validate parameters to dma_pool_create 
Check that 'align' is a power of two, like the API specifies.
Align 'size' to 'align' correctly -- the current code has an off-by-one.
The ALIGN macro in kernel.h doesn't.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
 2007-12-04 10:39:56 -05:00
Matthew Wilcox 2cae367e48 Avoid taking waitqueue lock in dmapool 
With one trivial change (taking the lock slightly earlier on wakeup
from schedule), all uses of the waitq are under the pool lock, so we
can use the locked (or __) versions of the wait queue functions, and
avoid the extra spinlock.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
 2007-12-04 10:39:56 -05:00
Matthew Wilcox e87aa77374 dmapool: Fix style problems 
Run Lindent and fix all issues reported by checkpatch.pl

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
 2007-12-04 10:39:55 -05:00
Matthew Wilcox 141e9d4b54 Move dmapool.c to mm/ directory 
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
 2007-12-04 10:39:54 -05:00