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| author | nn35248 <none@none> | 2006-09-11 22:51:59 -0700 |
|---|---|---|
| committer | nn35248 <none@none> | 2006-09-11 22:51:59 -0700 |
| commit | 9acbbeaf2a1ffe5c14b244867d427714fab43c5c (patch) | |
| tree | d1ecd54896325c19a463220e9cbc50864874fc82 /usr/src/uts/common/sys/bitmap.h | |
| parent | da51466dc253d7c98dda4956059042bd0c476328 (diff) | |
| download | illumos-gate-9acbbeaf2a1ffe5c14b244867d427714fab43c5c.tar.gz | |
PSARC/2005/471 BrandZ: Support for non-native zones
6374606 ::nm -D without an object may not work on processes in zones
6409350 BrandZ project integration into Solaris
6455289 pthread_setschedparam() should return EPERM rather than panic libc
6455591 setpriority(3C) gets errno wrong for deficient privileges failure
6458178 fifofs doesn't support lofs mounts of fifos
6460380 Attempted open() of a symlink with the O_NOFOLLOW flag set returns EINVAL, not ELOOP
6463857 renice(1) errors erroneously
--HG--
rename : usr/src/lib/libzonecfg/zones/SUNWblank.xml => usr/src/lib/brand/native/zone/SUNWblank.xml
rename : usr/src/lib/libzonecfg/zones/SUNWdefault.xml => usr/src/lib/brand/native/zone/SUNWdefault.xml
Diffstat (limited to 'usr/src/uts/common/sys/bitmap.h')
| -rw-r--r-- | usr/src/uts/common/sys/bitmap.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/usr/src/uts/common/sys/bitmap.h b/usr/src/uts/common/sys/bitmap.h index 8476ba9563..d0dd12b683 100644 --- a/usr/src/uts/common/sys/bitmap.h +++ b/usr/src/uts/common/sys/bitmap.h @@ -20,7 +20,7 @@ */ /* - * Copyright 2005 Sun Microsystems, Inc. All rights reserved. + * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -124,6 +124,14 @@ extern "C" { #endif /* _LP64 */ +/* + * BIT_ONLYONESET is a private macro not designed for bitmaps of + * arbitrary size. u must be an unsigned integer/long. It returns + * true if one and only one bit is set in u. + */ +#define BIT_ONLYONESET(u) \ + ((((u) == 0) ? 0 : ((u) & ((u) - 1)) == 0)) + #if defined(_KERNEL) && !defined(_ASM) #include <sys/atomic.h> |