| Date | Thu, 3 Aug 2023 19:15:54 +0000 | Subject | Re: [RFC PATCH v11 12/29] KVM: Add KVM_CREATE_GUEST_MEMFD ioctl() for guest-specific backing memory | From | Ryan Afranji <> |
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> +static struct folio *kvm_gmem_get_folio(struct file *file, pgoff_t index) > +{ > + struct folio *folio; > + > + /* TODO: Support huge pages. */ > + folio = filemap_grab_folio(file->f_mapping, index); > + if (!folio) > + return NULL;
In Linux 6.4, filemap_grab_folio() may also return an error value. Instead of just checking for NULL, "IS_ERR_OR_NULL(folio)" will be needed.
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