From: Karel Zak <kzak@redhat.com>
Date: Wed, 10 Mar 2010 23:59:04 +0000 (+0100)
Subject: lib: use fstat() as fallback in blkdev_get_size()
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=530381d2d506d75c4dd1607bb6f556d17537f911;p=util-linux

lib: use fstat() as fallback in blkdev_get_size()

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/lib/blkdev.c b/lib/blkdev.c
index 824a87c4..aa323f21 100644
--- a/lib/blkdev.c
+++ b/lib/blkdev.c
@@ -138,6 +138,15 @@ blkdev_get_size(int fd, unsigned long long *bytes)
 	}
 #endif /* HAVE_SYS_DISKLABEL_H */
 
+	{
+		struct stat st;
+
+		if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode)) {
+			*bytes = st.st_size;
+			return 0;
+		}
+	}
+
 	*bytes = blkdev_find_size(fd);
 	return 0;
 }