tree e8def40d5d97dfbb7c9293ae1f7c13a996e02feb
parent 6182a0943af2235756836ed7e021fa22b93ec68b
author Matthew Wilcox <matthew@wil.cx> 1196708908 -0500
committer Matthew Wilcox <matthew@wil.cx> 1196782797 -0500

Change dmapool free block management

Use a list of free blocks within a page instead of using a bitmap.
Update documentation to reflect this.  As well as being a slight
reduction in memory allocation, locked ops and lines of code, it speeds
up a transaction processing benchmark by 0.4%.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>