Fix abdstats kstat on 32-bit systems

When decrementing the struct_size and scatter_chunk_waste kstats
the value needs to be cast to an int on 32-bit systems.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6721

diff --git a/module/zfs/abd.c b/module/zfs/abd.c
index 765ac7fb72e6bea70a46050e2255e0feee9ca8fc..3c7893dcd35e4b518edd21c6131859b99f6bda79 100644 (file)
--- a/module/zfs/abd.c
+++ b/module/zfs/abd.c
@@ -571,7 +571,7 @@ static inline void
 abd_free_struct(abd_t *abd)
 {
        kmem_cache_free(abd_cache, abd);
-       ABDSTAT_INCR(abdstat_struct_size, -sizeof (abd_t));
+       ABDSTAT_INCR(abdstat_struct_size, -(int)sizeof (abd_t));
 }
 
 /*
@@ -618,7 +618,7 @@ abd_free_scatter(abd_t *abd)
        ABDSTAT_BUMPDOWN(abdstat_scatter_cnt);
        ABDSTAT_INCR(abdstat_scatter_data_size, -(int)abd->abd_size);
        ABDSTAT_INCR(abdstat_scatter_chunk_waste,
-           abd->abd_size - P2ROUNDUP(abd->abd_size, PAGESIZE));
+           (int)abd->abd_size - (int)P2ROUNDUP(abd->abd_size, PAGESIZE));
 
        abd_free_struct(abd);
 }