Jeff Layton <jlayton@xxxxxxxxxx> wrote: > +/** > + * prep_noread_page - prep a page for writing without reading first It's a static function, so I'm not sure it needs the kernel doc marker. It also needs prefixing with "netfs_". > + /* pos beyond last page in the file */ > + if (index > ((i_size - 1) / thp_size(page))) > + goto zero_out; thp_size() is not a constant, so this gets you a DIV instruction. Why not: if (page_offset(page) >= i_size) or maybe: if (pos - offset >= i_size) > + zero_user_segments(page, 0, offset, offset + len, thp_size(page)); If you're going to leave a hole in the file, this will break afs, so this patch needs to deal with that too (basically if copied < len, then the remainder needs clearing, give or take len being trimmed to the end of the page). I can look at adding that. Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote: > > + size_t offset = offset_in_page(pos); > > offset_in_thp(page, pos); I can make this change too. (btw, can offset_in_thp() have it's second arg renamed to 'pos', not just 'p'? 'p' is normally used to indicate a pointer of some sort).
