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Disable runtime detection of lazy purging support on FreeBSD.

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The check doesn't seem to serve any purpose here, and this shaves
off three syscalls on binary startup.
This commit is contained in:
Edward Tomasz Napierala 2018-06-23 05:44:23 +01:00 • committed by David Goldblatt
parent 115ce93562
commit 676cdd6679
1 changed files with 6 additions and 0 deletions
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6
src/pages.c
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@ -586,6 +586,11 @@ pages_boot(void) {
init_thp_state();
#ifdef __FreeBSD__
/*
* FreeBSD doesn't need the check; madvise(2) is known to work.
*/
#else
/* Detect lazy purge runtime support. */
if (pages_can_purge_lazy) {
bool committed = false;
@ -599,6 +604,7 @@ pages_boot(void) {
}
os_pages_unmap(madv_free_page, PAGE);
}
#endif
return false;
}