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-rw-r--r--nscd/connections.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/nscd/connections.c b/nscd/connections.c
index 808ea33adb..7ead3fd5e7 100644
--- a/nscd/connections.c
+++ b/nscd/connections.c
@@ -638,7 +638,7 @@ cannot create read-only descriptor for \"%s\"; no mmap"),
 
 		if ((TEMP_FAILURE_RETRY (write (fd, &head, sizeof (head)))
 		     != sizeof (head))
-		    || ftruncate (fd, total) != 0
+		    || posix_fallocate (fd, 0, total) != 0
 		    || (mem = mmap (NULL, total, PROT_READ | PROT_WRITE,
 				    MAP_SHARED, fd, 0)) == MAP_FAILED)
 		  {