23 	struct orangefs_write_range *wr = NULL;  in orangefs_writepage_locked()  local
34 		wr = folio->private;  in orangefs_writepage_locked()
35 		off = wr->pos;  in orangefs_writepage_locked()
36 		if ((off + wr->len > len) && (off <= len))  in orangefs_writepage_locked()
39 			wlen = wr->len;  in orangefs_writepage_locked()
41 			wlen = wr->len;  in orangefs_writepage_locked()
56 	    len, wr, NULL, NULL);  in orangefs_writepage_locked()
82 	struct orangefs_write_range *wrp, wr;  in orangefs_writepages_work()  local
105 	wr.uid = ow->uid;  in orangefs_writepages_work()
106 	wr.gid = ow->gid;  in orangefs_writepages_work()
108 	    0, &wr, NULL, NULL);  in orangefs_writepages_work()
127 	struct orangefs_write_range *wr = folio->private;  in orangefs_writepages_callback()  local
130 	if (!wr) {  in orangefs_writepages_callback()
140 		ow->off = wr->pos;  in orangefs_writepages_callback()
141 		ow->len = wr->len;  in orangefs_writepages_callback()
142 		ow->uid = wr->uid;  in orangefs_writepages_callback()
143 		ow->gid = wr->gid;  in orangefs_writepages_callback()
148 	if (!uid_eq(ow->uid, wr->uid) || !gid_eq(ow->gid, wr->gid)) {  in orangefs_writepages_callback()
154 	if (ow->off + ow->len == wr->pos) {  in orangefs_writepages_callback()
155 		ow->len += wr->len;  in orangefs_writepages_callback()
293 	struct orangefs_write_range *wr;  in orangefs_write_begin()  local
315 		struct orangefs_write_range *wr;  in orangefs_write_begin()  local
316 		wr = folio_get_private(folio);  in orangefs_write_begin()
317 		if (wr->pos + wr->len == pos &&  in orangefs_write_begin()
318 		    uid_eq(wr->uid, current_fsuid()) &&  in orangefs_write_begin()
319 		    gid_eq(wr->gid, current_fsgid())) {  in orangefs_write_begin()
320 			wr->len += len;  in orangefs_write_begin()
323 			wr->pos = pos;  in orangefs_write_begin()
324 			wr->len = len;  in orangefs_write_begin()
331 	wr = kmalloc(sizeof *wr, GFP_KERNEL);  in orangefs_write_begin()
332 	if (!wr)  in orangefs_write_begin()
335 	wr->pos = pos;  in orangefs_write_begin()
336 	wr->len = len;  in orangefs_write_begin()
337 	wr->uid = current_fsuid();  in orangefs_write_begin()
338 	wr->gid = current_fsgid();  in orangefs_write_begin()
339 	folio_attach_private(folio, wr);  in orangefs_write_begin()
384 	struct orangefs_write_range *wr = folio_get_private(folio);  in orangefs_invalidate_folio()  local
390 	} else if (folio_pos(folio) + offset <= wr->pos &&  in orangefs_invalidate_folio()
391 	    wr->pos + wr->len <= folio_pos(folio) + offset + length) {  in orangefs_invalidate_folio()
397 	} else if (wr->pos < folio_pos(folio) + offset &&  in orangefs_invalidate_folio()
398 	    wr->pos + wr->len <= folio_pos(folio) + offset + length &&  in orangefs_invalidate_folio()
399 	     folio_pos(folio) + offset < wr->pos + wr->len) {  in orangefs_invalidate_folio()
401 		x = wr->pos + wr->len - (folio_pos(folio) + offset);  in orangefs_invalidate_folio()
402 		WARN_ON(x > wr->len);  in orangefs_invalidate_folio()
403 		wr->len -= x;  in orangefs_invalidate_folio()
404 		wr->uid = current_fsuid();  in orangefs_invalidate_folio()
405 		wr->gid = current_fsgid();  in orangefs_invalidate_folio()
407 	} else if (folio_pos(folio) + offset <= wr->pos &&  in orangefs_invalidate_folio()
408 	    folio_pos(folio) + offset + length < wr->pos + wr->len &&  in orangefs_invalidate_folio()
409 	    wr->pos < folio_pos(folio) + offset + length) {  in orangefs_invalidate_folio()
411 		x = folio_pos(folio) + offset + length - wr->pos;  in orangefs_invalidate_folio()
412 		WARN_ON(x > wr->len);  in orangefs_invalidate_folio()
413 		wr->pos += x;  in orangefs_invalidate_folio()
414 		wr->len -= x;  in orangefs_invalidate_folio()
415 		wr->uid = current_fsuid();  in orangefs_invalidate_folio()
416 		wr->gid = current_fsgid();  in orangefs_invalidate_folio()
418 	} else if (wr->pos < folio_pos(folio) + offset &&  in orangefs_invalidate_folio()
419 	    folio_pos(folio) + offset + length < wr->pos + wr->len) {  in orangefs_invalidate_folio()
431 		if (!((folio_pos(folio) + offset + length <= wr->pos) ^  in orangefs_invalidate_folio()
432 		    (wr->pos + wr->len <= folio_pos(folio) + offset))) {  in orangefs_invalidate_folio()
437 			    wr->pos, wr->len);  in orangefs_invalidate_folio()
443 	 * Above there are returns where wr is freed or where we WARN.  in orangefs_invalidate_folio()
444 	 * Thus the following runs if wr was modified above.  in orangefs_invalidate_folio()
612 	struct orangefs_write_range *wr;  in orangefs_page_mkwrite()  local
634 		wr = folio_get_private(folio);  in orangefs_page_mkwrite()
635 		if (uid_eq(wr->uid, current_fsuid()) &&  in orangefs_page_mkwrite()
636 		    gid_eq(wr->gid, current_fsgid())) {  in orangefs_page_mkwrite()
637 			wr->pos = page_offset(vmf->page);  in orangefs_page_mkwrite()
638 			wr->len = PAGE_SIZE;  in orangefs_page_mkwrite()
647 	wr = kmalloc(sizeof *wr, GFP_KERNEL);  in orangefs_page_mkwrite()
648 	if (!wr) {  in orangefs_page_mkwrite()
652 	wr->pos = page_offset(vmf->page);  in orangefs_page_mkwrite()
653 	wr->len = PAGE_SIZE;  in orangefs_page_mkwrite()
654 	wr->uid = current_fsuid();  in orangefs_page_mkwrite()
655 	wr->gid = current_fsgid();  in orangefs_page_mkwrite()
656 	folio_attach_private(folio, wr);  in orangefs_page_mkwrite()