Change variable "inst_num" U32 due atomic_inc_32_nv

After run a long time with QAT compression, the variable "inst_num" is overflow by "atomic_inc_32_nv", which causes its neighbor variable overwritten. Change its definition from U16 to U32. Signed-off-by: Weigang Li <[email protected]>
openzfs · Apr 21, 2017 · 7b857ac · 7b857ac
1 parent 038091f
commit 7b857ac
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/module/zfs/qat_compress.c b/module/zfs/qat_compress.c
@@ -105,7 +105,7 @@ static CpaInstanceHandle dc_inst_handles[MAX_INSTANCES];
 static CpaDcSessionHandle session_handles[MAX_INSTANCES];
 static CpaBufferList **buffer_array[MAX_INSTANCES];
 static Cpa16U num_inst = 0;
-static Cpa16U inst_num = 0;
+static Cpa32U inst_num = 0;
 static boolean_t qat_init_done = B_FALSE;
 int zfs_qat_disable = 0;