* random.c (fill_random_bytes_syscall): don't use GRND_NONBLOCK.

  It is meaningless. If SYS_getrandom(GRND_NONBLOCK) return
  EAGAIN, we eventually call fill_random_bytes_urandom() and
  it block such as SYS_getrandom() without GRND_NONBLOCK.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52180 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 5 deletions

diff --git a/random.c b/random.c
index 4a9d4dec01..3fcc4243e6 100644
--- a/random.c
+++ b/random.c
@@ -518,10 +518,6 @@ fill_random_bytes_syscall(void *seed, size_t size)
 #elif defined __linux__ && defined SYS_getrandom
 #include <linux/random.h>
 
-# ifndef GRND_NONBLOCK
-#   define GRND_NONBLOCK 0x0001	/* not defined in musl libc */
-# endif
-
 static int
 fill_random_bytes_syscall(void *seed, size_t size)
 {
@@ -529,7 +525,7 @@ fill_random_bytes_syscall(void *seed, size_t size)
     if (try_syscall) {
 	long ret;
 	errno = 0;
-	ret = syscall(SYS_getrandom, seed, size, GRND_NONBLOCK);
+	ret = syscall(SYS_getrandom, seed, size, 0);
 	if (errno == ENOSYS) {
 	    ATOMIC_SET(try_syscall, 0);
 	    return -1;