gcc reports this warning with -Wclobbered:
util/oslib-posix.c: In function ‘os_mem_prealloc’:
util/oslib-posix.c:374:49: error: argument ‘memory’ might be clobbered by
‘longjmp’ or ‘vfork’ [-Werror=clobbered]
Fix this and simplify the code by using an existing macro.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
} else {
int i;
size_t hpagesize = fd_getpagesize(fd);
+ size_t numpages = DIV_ROUND_UP(memory, hpagesize);
/* MAP_POPULATE silently ignores failures */
- memory = (memory + hpagesize - 1) & -hpagesize;
- for (i = 0; i < (memory / hpagesize); i++) {
+ for (i = 0; i < numpages; i++) {
memset(area + (hpagesize * i), 0, 1);
}