X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvppinfra%2Flinux%2Fsysfs.c;h=758eaa1a86c5638041fd57e697ded0f119365a7f;hb=6db633bde1dc5f89f7c8b434dc95dc225672b277;hp=1157e4fe655d5a00a9c910e96a2279f22060bd63;hpb=ac6c528fb22d427d7beacd73c247ffd97389dbfe;p=vpp.git

diff --git a/src/vppinfra/linux/sysfs.c b/src/vppinfra/linux/sysfs.c
index 1157e4fe655..758eaa1a86c 100644
--- a/src/vppinfra/linux/sysfs.c
+++ b/src/vppinfra/linux/sysfs.c
@@ -16,6 +16,7 @@
 #include <vppinfra/clib.h>
 #include <vppinfra/clib_error.h>
 #include <vppinfra/format.h>
+#include <vppinfra/bitmap.h>
 
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -262,6 +263,32 @@ clib_sysfs_prealloc_hugepages (int numa_node, int log2_page_size, int nr)
   return clib_sysfs_set_nr_hugepages (numa_node, log2_page_size, n + needed);
 }
 
+__clib_export uword *
+clib_sysfs_list_to_bitmap (char *filename)
+{
+  FILE *fp;
+  uword *r = 0;
+
+  fp = fopen (filename, "r");
+
+  if (fp != NULL)
+    {
+      u8 *buffer = 0;
+      vec_validate (buffer, 256 - 1);
+      if (fgets ((char *) buffer, 256, fp))
+	{
+	  unformat_input_t in;
+	  unformat_init_string (&in, (char *) buffer,
+				strlen ((char *) buffer));
+	  if (unformat (&in, "%U", unformat_bitmap_list, &r) != 1)
+	    clib_warning ("unformat_bitmap_list failed");
+	  unformat_free (&in);
+	}
+      vec_free (buffer);
+      fclose (fp);
+    }
+  return r;
+}
 
 /*
  * fd.io coding-style-patch-verification: ON