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Code Releases Activity

Alloc: Minor cleanups

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- Fix THP disable on old systems
 - Failed syscalls should use die() instead of bug()
 - Our printf uses %ld for s64 instead of long
This commit is contained in:
Ondrej Zajicek 2023-01-18 13:40:21 +01:00
parent 6bb992cb04
commit 804916daa9
1 changed files with 6 additions and 3 deletions
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9
sysdep/unix/alloc.c
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@ -21,6 +21,9 @@
#ifdef CONFIG_DISABLE_THP
#include <sys/prctl.h>
#ifndef PR_SET_THP_DISABLE
#define PR_SET_THP_DISABLE 41
#endif
#endif
long page_size = 0;
@ -78,7 +81,7 @@ alloc_sys_page(void)
void *ptr = mmap(NULL, page_size, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (ptr == MAP_FAILED)
bug("mmap(%lu) failed: %m", page_size);
die("mmap(%ld) failed: %m", (s64) page_size);
return ptr;
}
@ -99,7 +102,7 @@ alloc_page(void)
int err = posix_memalign(&ptr, page_size, page_size);
if (err || !ptr)
bug("posix_memalign(%lu) failed", (long unsigned int) page_size);
die("posix_memalign(%ld) failed", (s64) page_size);
return ptr;
}
@ -229,7 +232,7 @@ resource_sys_init(void)
#ifdef CONFIG_DISABLE_THP
/* Disable transparent huge pages, they do not work properly with madvice(MADV_DONTNEED) */
if (prctl(PR_SET_THP_DISABLE, (unsigned long) 1, (unsigned long) 0, (unsigned long) 0, (unsigned long) 0) < 0)
die("prctl(PR_SET_THP_DISABLE) failed: %m");
log(L_WARN "Cannot disable transparent huge pages: prctl(PR_SET_THP_DISABLE) failed: %m");
#endif
#ifdef HAVE_MMAP