Re: [PATCH v9 01/14] swiotlb: Refactor swiotlb init functions

On Mon, Jun 14, 2021 at 2:16 PM Christoph Hellwig [off-list ref] wrote:

On Fri, Jun 11, 2021 at 11:26:46PM +0800, Claire Chang wrote:

quoted

+     spin_lock_init(&mem->lock);
+     for (i = 0; i < mem->nslabs; i++) {
+             mem->slots[i].list = IO_TLB_SEGSIZE - io_tlb_offset(i);
+             mem->slots[i].orig_addr = INVALID_PHYS_ADDR;
+             mem->slots[i].alloc_size = 0;
+     }
+
+     if (memory_decrypted)
+             set_memory_decrypted((unsigned long)vaddr, bytes >> PAGE_SHIFT);
+     memset(vaddr, 0, bytes);

We don't really need to do this call before the memset.  Which means we
can just move it to the callers that care instead of having a bool
argument.

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>

Thanks for the review. Will wait more days for other reviews and send
v10 to address the comments in this and other patches.