SBA_SEARCH_BITMAP
Section: (9)
Updated: 09 October 2005
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NAME
sba_search_bitmap - find free space in IO PDIR resource bitmap
SYNOPSIS
"SYNOPSIS"
SBA_INLINE unsigned long sba_search_bitmap (struct ioc * ioc, unsigned long bits_wanted, int use_hint);
ARGUMENTS
- ioc
-
IO MMU structure which owns the pdir we are interested in.
- bits_wanted
-
number of entries we need.
- use_hint
-
use res_hint to indicate where to start looking
DESCRIPTION
Find consecutive free bits in resource bitmap.
Each bit represents one entry in the IO Pdir.
COOL PERF OPTIMIZATION
search for log2(size) bits at a time.
Index
- NAME
-
- SYNOPSIS
-
- ARGUMENTS
-
- DESCRIPTION
-
- COOL PERF OPTIMIZATION
-
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Time: 00:02:44 GMT, October 09, 2005