add fallocate (nonstandardized) function

this is equivalent to posix_fallocate except that it has an extra
mode/flags argument to control its behavior, and stores the error in
errno rather than returning an error code.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/fcntl/fallocate.c b/src/fcntl/fallocate.c
new file mode 100644
index 00000000..9146350e
--- /dev/null
+++ b/src/fcntl/fallocate.c
@@ -0,0 +1,9 @@
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include "syscall.h"
+
+int fallocate(int fd, int mode, off_t base, off_t len)
+{
+	return syscall(SYS_fallocate, fd, mode, __SYSCALL_LL_E(base),
+		__SYSCALL_LL_E(len));
+}