Suppress 'zfs_sb_create' memory warning

When mutex debugging is enabled in your kernel the increased
size of the mutex structures can push the zfs_sb_t type beyond
the 8k warning threshold.  This isn't harmful so we suppress
the warning for this case.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #628

diff --git a/module/zfs/zfs_vfsops.c b/module/zfs/zfs_vfsops.c
index 6d75326b7de165286ee9f6cbe85eab1a2e2b9042..1efe6a8c98de9e6b41654aa4d8f8dd0027a3a683 100644 (file)
--- a/module/zfs/zfs_vfsops.c
+++ b/module/zfs/zfs_vfsops.c
@@ -584,7 +584,7 @@ zfs_sb_create(const char *osname, zfs_sb_t **zsbp)
        int i, error;
        uint64_t sa_obj;
 
-       zsb = kmem_zalloc(sizeof (zfs_sb_t), KM_SLEEP);
+       zsb = kmem_zalloc(sizeof (zfs_sb_t), KM_SLEEP | KM_NODEBUG);
 
        /*
         * We claim to always be readonly so we can open snapshots;