X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=lib%2Faxmap.c;h=7351e29725f4189b8178d9e6895efdbc276f61c0;hb=55348b420e618b1c5c50106261437fe948ef2132;hp=d9ad30bf5b9d679070b6e1767b4b978dba7c3940;hpb=bcd5abfa9f230bbe4365dad1289fdea1f5509f74;p=fio.git

diff --git a/lib/axmap.c b/lib/axmap.c
index d9ad30bf..7351e297 100644
--- a/lib/axmap.c
+++ b/lib/axmap.c
@@ -309,7 +309,7 @@ static uint64_t axmap_find_first_free(struct axmap *axmap, unsigned int level,
 				       uint64_t index)
 {
 	unsigned long j;
-	int i;
+	int i, found = 0;
 
 	/*
 	 * Start at the bottom, then converge towards first free bit at the top
@@ -331,11 +331,12 @@ static uint64_t axmap_find_first_free(struct axmap *axmap, unsigned int level,
 			 * free bit at the next higher level
 			 */
 			index = (j << UNIT_SHIFT) + ffz(al->map[j]);
+			found = 1;
 			break;
 		}
 	}
 
-	return index;
+	return found ? index : (uint64_t) -1ULL;
 }
 
 uint64_t axmap_first_free(struct axmap *axmap)