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| author | David Gibson <david@gibson.dropbear.id.au> | 2024-11-08 13:53:28 +1100 |
|---|---|---|
| committer | Stefano Brivio <sbrivio@redhat.com> | 2024-11-08 08:26:15 +0100 |
| commit | d64f25724399fbb4ba9d36eda7e17984a4c6c91c (patch) | |
| tree | 080066a942830eb79b9abbb8fd4d4b7d213a3360 /linux_dep.h | |
| parent | b84cd05098275a7625223141d019f8af5a17323b (diff) | |
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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 <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Diffstat (limited to 'linux_dep.h')
| -rw-r--r-- | linux_dep.h | 20 |
1 files changed, 20 insertions, 0 deletions
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 <linux/close_range.h> + +#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 */ |