Re: [PATCH 8/9] btrfs: handle a NULL folio in extent_range_redirty_for_io

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Jan 18, 2023 at 04:08:57PM +0000, Matthew Wilcox wrote:
> On Wed, Jan 18, 2023 at 10:43:28AM +0100, Christoph Hellwig wrote:
> > filemap_get_folio can return NULL, skip those cases.
> 
> Hmm, I'm not sure that's true.  We have one place that calls
> extent_range_redirty_for_io(), and it previously calls
> extent_range_clear_dirty_for_io() which has an explicit
> 
>                 BUG_ON(!page); /* Pages should be in the extent_io_tree */
> 
> so I'm going to say this one can't happen either.  I haven't delved far
> enough into btrfs to figure out why it can't happen.

I'll drop this patch for now.




[Index of Archives]     [Linux Filesystem Development]     [Linux BTRFS]     [Linux CIFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux SCSI]

  Powered by Linux