From ae8d6a950925669dc83fc9c74d14e9e1ca086db5 Mon Sep 17 00:00:00 2001
From: fsgqa <fsgqa>
Date: Mon, 7 Apr 2003 03:03:39 +0000
Subject: [PATCH] Use memalign instead of realloc for read/write buffer so
 direct IO works.

---
 io/pread.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/io/pread.c b/io/pread.c
index d12c0a979..7fb7d052d 100644
--- a/io/pread.c
+++ b/io/pread.c
@@ -64,9 +64,11 @@ alloc_buffer(
 	unsigned int	seed)
 {
 	if (bsize > buffersize) {
-		buffer = realloc(buffer, buffersize = bsize);
+		if (buffer)
+			free(buffer);
+		buffer = memalign(getpagesize(), buffersize = bsize);
 		if (!buffer) {
-			perror("realloc");
+			perror("memalign");
 			buffersize = 0;
 			return 0;
 		}
-- 
2.47.2