Am 2021-06-09 um 3:23 p.m. schrieb Matthew Wilcox: > On Mon, Jun 07, 2021 at 03:42:19PM -0500, Alex Sierra wrote: >> +++ b/include/linux/dax.h >> @@ -243,6 +243,16 @@ static inline bool dax_mapping(struct address_space *mapping) >> return mapping->host && IS_DAX(mapping->host); >> } >> >> +static inline bool dax_layout_is_idle_page(struct page *page) >> +{ >> + return page_ref_count(page) == 1; >> +} > We already have something called an idle page, and that's quite a > different thing from this. How about dax_page_unused() (it's a use > count, so once it's got down to its minimum value, it's unused)? > Hi Matthew, Thank you very much for your feedback. This patch looks straight-forward enough, but do we need the filesystem maintainers to review this as well? I guess we should CC the linux-ext4 and linux-xfs mailing lists in the next revision. Hi Ralph, Are you OK if we update your patch with this suggestion? Thanks, Felix