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| author | peter <peter@FreeBSD.org> | 2002-06-20 06:21:20 +0000 |
|---|---|---|
| committer | peter <peter@FreeBSD.org> | 2002-06-20 06:21:20 +0000 |
| commit | 4830c346487d0f10f6ee751a4b5951e6e6688d03 (patch) | |
| tree | bff62bbdcdfc1237d8035660837bdd0327caebd3 /sys/powerpc | |
| parent | f49002f4f645a3830346fc6d790ec32a2d43a4c2 (diff) | |
| download | FreeBSD-src-4830c346487d0f10f6ee751a4b5951e6e6688d03.zip FreeBSD-src-4830c346487d0f10f6ee751a4b5951e6e6688d03.tar.gz | |
Move the "- 1" into the RQB_FFS(mask) macro itself so that
implementations can provide a base zero ffs function if they wish.
This changes
#define RQB_FFS(mask) (ffs64(mask))
foo = RQB_FFS(mask) - 1;
to
#define RQB_FFS(mask) (ffs64(mask) - 1)
foo = RQB_FFS(mask);
On some platforms we can get the "- 1" for free, eg: those that use the
C code for ffs64().
Reviewed by: jake (in principle)
Diffstat (limited to 'sys/powerpc')
| -rw-r--r-- | sys/powerpc/include/runq.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/powerpc/include/runq.h b/sys/powerpc/include/runq.h index 1ea7735..2a21bfa 100644 --- a/sys/powerpc/include/runq.h +++ b/sys/powerpc/include/runq.h @@ -36,7 +36,7 @@ #define RQB_BIT(pri) (1 << ((pri) & (RQB_BPW - 1))) #define RQB_WORD(pri) ((pri) >> RQB_L2BPW) -#define RQB_FFS(word) (ffs(word)) +#define RQB_FFS(word) (ffs(word) - 1) /* * Type of run queue status word. |
