From c6e9e0f32491ca9a24158f1a0af0c422bffc58a7 Mon Sep 17 00:00:00 2001
From: Lubomir Rintel <lkundrak@v3.sk>
Date: Tue, 29 Aug 2017 12:12:38 +0200
Subject: [PATCH] Avoid attempting to allocate space by overwriting the last
 block

It seems to just create a hole.
---
 src/lib/disk.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/lib/disk.c b/src/lib/disk.c
index 8d31746b25d689b9..db9c08fedbd6435c 100644
--- a/src/lib/disk.c
+++ b/src/lib/disk.c
@@ -700,6 +700,7 @@ device_set_var(const char *var, const char *arg)
 	}
 }
 
+#if 0
 /* allocate some space for a disk/extent, using an lseek, read and
 * write combination */
 static int
@@ -750,6 +751,7 @@ allocate_space(disc_target_t *tp)
 	}
 	return 0;
 }
+#endif
 
 /* copy src to dst, of size `n' bytes, padding any extra with `pad' */
 static void
@@ -877,11 +879,13 @@ device_init(iscsi_target_t *tgt, targv_t *tvp, disc_target_t *tp)
 			"error opening \"%s\"\n", idisk->filename);
 		return -1;
 	}
+#if 0
 	if (!(tp->flags & TARGET_READONLY) && !allocate_space(tp)) {
 		iscsi_err(__FILE__, __LINE__,
 			"error allocating space for \"%s\"\n", tp->target);
 		return -1;
 	}
+#endif
 	printf("%" PRIu64 " MB %sdisk storage for \"%s\"\n",
 		(de_getsize(&tp->de) / MB(1)),
 		(tp->flags & TARGET_READONLY) ? "readonly " : "",