util-linux/util-linux-2.13-blockdev-er...

37 lines
933 B
Diff

commit 3281d4268a192cbd1951347a4a857b94428dc958
Author: Karel Zak <kzak@redhat.com>
Date: Wed Aug 1 15:06:18 2007 +0200
blockdev: fix "blockdev --getsz" for large devices
The "blockdev --getsz" command doesn't try to use BLKGETSIZE64 when
previous BLKGETSIZE failed with EFBIG. This patch fixes this problem.
Signed-off-by: Karel Zak <kzak@redhat.com>
diff --git a/disk-utils/blockdev.c b/disk-utils/blockdev.c
index 46b7fa7..0dd531c 100644
--- a/disk-utils/blockdev.c
+++ b/disk-utils/blockdev.c
@@ -9,6 +9,7 @@
#include <string.h>
#include <unistd.h>
#include <sys/ioctl.h>
+#include <errno.h>
#include "nls.h"
@@ -148,8 +149,10 @@ getsize(int fd, long long *sectors) {
long long b;
err = ioctl (fd, BLKGETSIZE, &sz);
- if (err)
- return err;
+ if (err) {
+ if (errno != EFBIG)
+ return err;
+ }
err = ioctl(fd, BLKGETSIZE64, &b);
if (err || b == 0 || b == sz)
*sectors = sz;