prefetching leaked memory

19 years ago · 8885fc1018
1 changed files with 2 additions and 1 deletions
--- a/io/iob_prefetch.c
+++ b/io/iob_prefetch.c
@ -11,6 +11,7 @@ void iob_prefetch(io_batch* b,uint64 bytes) {
  for (; e<last; ++e) {
    if (e->type==FROMFILE) {
      char* c,* d;
+      uint64 before=bytes;
      if (e->n>=1000000) {
 	d=c=mmap(0,bytes,PROT_READ,MAP_SHARED,e->fd,(e->offset|4095)+1);
 	if (c!=MAP_FAILED) {
@ -21,7 +22,7 @@ void iob_prefetch(io_batch* b,uint64 bytes) {
 	    (void)x;
 	  }
 	}
-	munmap(c,bytes);
+	munmap(c,before);
      }
      return;
    }