From d64f25724399fbb4ba9d36eda7e17984a4c6c91c Mon Sep 17 00:00:00 2001 From: David Gibson Date: Fri, 8 Nov 2024 13:53:28 +1100 Subject: linux_dep: Move close_range() conditional handling to linux_dep.h util.h has some #ifdefs and weak definitions to handle compatibility with various kernel versions. Move this to linux_dep.h which handles several other similar cases. Signed-off-by: David Gibson Signed-off-by: Stefano Brivio --- linux_dep.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'linux_dep.h') diff --git a/linux_dep.h b/linux_dep.h index eae9c3c..3a41e42 100644 --- a/linux_dep.h +++ b/linux_dep.h @@ -125,4 +125,24 @@ struct tcp_info_linux { #define FALLOC_FL_COLLAPSE_RANGE 0x08 #endif +#include + +#ifdef CLOSE_RANGE_UNSHARE /* Linux kernel >= 5.9 */ +/* glibc < 2.34 and musl as of 1.2.5 need these */ +#ifndef SYS_close_range +#define SYS_close_range 436 +#endif +__attribute__ ((weak)) +/* cppcheck-suppress funcArgNamesDifferent */ +int close_range(unsigned int first, unsigned int last, int flags) { + return syscall(SYS_close_range, first, last, flags); +} +#else +/* No reasonable fallback option */ +/* cppcheck-suppress funcArgNamesDifferent */ +int close_range(unsigned int first, unsigned int last, int flags) { + return 0; +} +#endif + #endif /* LINUX_DEP_H */ -- cgit v1.2.3