[PATCH v4 22/25] tools: bitmap: add missing bitmap_copy() implementation
"Lorenzo Stoakes (Oracle)" <[email protected]>
| Newsgroups | gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.mips,gmane.linux.ports.ppc64.devel,gmane.linux.uml.devel,gmane.linux.file-systems |
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| Message-ID | <4dcb2fb959137e9fe58a23e21cebcea97de41a1f.1774034900.git.ljs@kernel.org> |
I need this for changes I am making to keep the VMA tests running correctly. Signed-off-by: Lorenzo Stoakes (Oracle) <[email protected]> --- tools/include/linux/bitmap.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h index 845eda759f67..5cb4f3942fd3 100644 --- a/tools/include/linux/bitmap.h +++ b/tools/include/linux/bitmap.h @@ -55,6 +55,17 @@ static inline void bitmap_fill(unsigned long *dst, unsigned int nbits) dst[nlongs - 1] = BITMAP_LAST_WORD_MASK(nbits); } +static __always_inline +void bitmap_copy(unsigned long *dst, const unsigned long *src, unsigned int nbits) +{ + unsigned int len = bitmap_size(nbits); + + if (small_const_nbits(nbits)) + *dst = *src; + else + memcpy(dst, src, len); +} + static inline bool bitmap_empty(const unsigned long *src, unsigned int nbits) { if (small_const_nbits(nbits)) -- 2.53.0