Fix unused variable warning

Remove the lz4_ac local variable from dmu_write_policy() to resolve
the following unused variable warning on non-debug builds.

dmu.c: In function ‘dmu_write_policy’:
dmu.c:1892:12: warning: unused variable ‘lz4_ac’ [-Wunused-variable]
  boolean_t lz4_ac = spa_feature_is_active(os->os_spa,

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>

diff --git a/module/zfs/dmu.c b/module/zfs/dmu.c
index 3552dfb536b397303adbaf689aa1d566e960d3ef..4203ddb16c2246f8311f077913247a27676f1de0 100644 (file)
--- a/module/zfs/dmu.c
+++ b/module/zfs/dmu.c
@@ -1889,10 +1889,9 @@ dmu_write_policy(objset_t *os, dnode_t *dn, int level, int wp,
        boolean_t nopwrite = B_FALSE;
        boolean_t dedup_verify = os->os_dedup_verify;
        int copies = os->os_copies;
-       boolean_t lz4_ac = spa_feature_is_active(os->os_spa,
-           SPA_FEATURE_LZ4_COMPRESS);
 
-       IMPLY(override_compress == ZIO_COMPRESS_LZ4, lz4_ac);
+       IMPLY(override_compress == ZIO_COMPRESS_LZ4,
+           spa_feature_is_active(os->os_spa, SPA_FEATURE_LZ4_COMPRESS));
 
        /*
         * We maintain different write policies for each of the following