xfs: use kvfree() in xlog_cil_free_logvec()

The xfs_log_vec items are allocated by xlog_kvmalloc(), and so need
to be freed with kvfree. This was missed when coverting from the
kmem_free() API.

Fixes: 4929257 ("xfs: convert kmem_free() for kvmalloc users to kvfree()")
Reported-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>

fs/xfs/xfs_log_cil.c

@@ -703,7 +703,7 @@ xlog_cil_free_logvec(
 	while (!list_empty(lv_chain)) {
 		lv = list_first_entry(lv_chain, struct xfs_log_vec, lv_list);
 		list_del_init(&lv->lv_list);
-		kfree(lv);
+		kvfree(lv);
 	}
 }
 
@@ -1544,7 +1544,7 @@ xlog_cil_process_intents(
 		set_bit(XFS_LI_WHITEOUT, &ilip->li_flags);
 		trace_xfs_cil_whiteout_mark(ilip);
 		len += ilip->li_lv->lv_bytes;
-		kfree(ilip->li_lv);
+		kvfree(ilip->li_lv);
 		ilip->li_lv = NULL;
 
 		xfs_trans_del_item(lip);