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Use a precise bit count for the slab free items in UMA. 

This significantly shrinks embedded slab structures.

Reviewed by:	markj, rlibby (prior version)
Differential Revision:	https://reviews.freebsd.org/D22584
This commit is contained in:
Jeff Roberson 2019-12-02 22:44:34 +00:00 committed by Sebastian Huber
parent a13a044c17
commit a6bd733db9
1 changed files with 3 additions and 2 deletions
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5
newlib/libc/sys/rtems/include/sys/bitset.h
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@ -249,10 +249,11 @@
#define BITSET_FSET(n) \ #define BITSET_FSET(n) \
[ 0 ... ((n) - 1) ] = (-1L) [ 0 ... ((n) - 1) ] = (-1L)
#define BITSET_SIZE(_s) (__bitset_words((_s)) * sizeof(long))
/* /*
* Dynamically allocate a bitset. * Dynamically allocate a bitset.
*/ */
#define BITSET_ALLOC(_s, mt, mf) \ #define BITSET_ALLOC(_s, mt, mf) malloc(BITSET_SIZE((_s)), mt, (mf))
malloc(__bitset_words(_s) * sizeof(long), mt, (mf))
#endif /* !_SYS_BITSET_H_ */ #endif /* !_SYS_BITSET_H_ */