Add roundup_pow2() as a generic helper

Signed-off-by: Jens Axboe <[email protected]>
axboe · Jul 27, 2020 · 6d975f2 · 6d975f2
1 parent 11b280c
commit 6d975f2
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Showing 2 changed files with 12 additions and 5 deletions.
diff --git a/engines/io_uring.c b/engines/io_uring.c
@@ -17,6 +17,7 @@
 #include "../optgroup.h"
 #include "../lib/memalign.h"
 #include "../lib/fls.h"
+#include "../lib/roundup.h"
 
 #ifdef ARCH_HAVE_IOURING
 
@@ -654,11 +655,6 @@ static int fio_ioring_post_init(struct thread_data *td)
 	return 0;
 }
 
-static unsigned roundup_pow2(unsigned depth)
-{
-	return 1UL << __fls(depth - 1);
-}
-
 static int fio_ioring_init(struct thread_data *td)
 {
 	struct ioring_options *o = td->eo;

diff --git a/lib/roundup.h b/lib/roundup.h
@@ -0,0 +1,11 @@
+#ifndef FIO_ROUNDUP_H
+#define FIO_ROUNDUP_H
+
+#include "lib/fls.h"
+
+static inline unsigned roundup_pow2(unsigned depth)
+{
+	return 1UL << __fls(depth - 1);
+}
+
+#endif