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-rw-r--r--src/tsort.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/tsort.c b/src/tsort.c
index b5c187b30..4f51f3074 100644
--- a/src/tsort.c
+++ b/src/tsort.c
@@ -29,6 +29,7 @@
#include "system.h"
#include "long-options.h"
#include "error.h"
+#include "fadvise.h"
#include "quote.h"
#include "readtokens.h"
#include "stdio--.h"
@@ -444,6 +445,8 @@ tsort (const char *file)
if (!is_stdin && ! freopen (file, "r", stdin))
error (EXIT_FAILURE, errno, "%s", file);
+ fadvise (stdin, FADVISE_SEQUENTIAL);
+
init_tokenbuffer (&tokenbuffer);
while (1)