Don't crash when using filehash lock before init

[fio.git] / filehash.c

diff --git a/filehash.c b/filehash.c
index 392464e2ba61dd2f04caccba893ec5b0c17794cd..0d61f54cca0b2f8c526cd639f9749716069aa8ff 100644 (file)
--- a/filehash.c
+++ b/filehash.c
@@ -4,6 +4,7 @@
 #include "fio.h"
 #include "flist.h"
 #include "hash.h"
+#include "filehash.h"
 
 #define HASH_BUCKETS   512
 #define HASH_MASK      (HASH_BUCKETS - 1)
@@ -18,6 +19,18 @@ static unsigned short hash(const char *name)
        return jhash(name, strlen(name), 0) & HASH_MASK;
 }
 
+void fio_file_hash_lock(void)
+{
+       if (hash_lock)
+               fio_mutex_down(hash_lock);
+}
+
+void fio_file_hash_unlock(void)
+{
+       if (hash_lock)
+               fio_mutex_up(hash_lock);
+}
+
 void remove_file_hash(struct fio_file *f)
 {
        fio_mutex_down(hash_lock);