Re: [PATCH v2] ext4: check folio uptodate state in ext4_page_mkwrite()

[Theodore Tso]

On Wed, Dec 03, 2025 at 10:46:57AM -0500, Theodore Tso wrote:
> 
> 	if (!folio_test_uptodate(folio)) {
> 		ret = VM_FAULT_SIGBUS;
> 		goto out;
> 	}

And actually, thinking about this some more, is this check something
that we should be doing in ext4?  Or in the mm layer?

Matthew, what do you think?

     	       	  	   	     	- Ted