18 	struct page **pages;  in ceph_get_direct_page_vector()  local
22 	pages = kmalloc(sizeof(*pages) * num_pages, GFP_NOFS);  in ceph_get_direct_page_vector()
23 	if (!pages)  in ceph_get_direct_page_vector()
29 		    num_pages - got, write_page, 0, pages + got);  in ceph_get_direct_page_vector()
37 	return pages;  in ceph_get_direct_page_vector()
40 	ceph_put_page_vector(pages, got, false);  in ceph_get_direct_page_vector()
45 void ceph_put_page_vector(struct page **pages, int num_pages, bool dirty)  in ceph_put_page_vector()  argument
51 			set_page_dirty_lock(pages[i]);  in ceph_put_page_vector()
52 		put_page(pages[i]);  in ceph_put_page_vector()
54 	if (is_vmalloc_addr(pages))  in ceph_put_page_vector()
55 		vfree(pages);  in ceph_put_page_vector()
57 		kfree(pages);  in ceph_put_page_vector()
61 void ceph_release_page_vector(struct page **pages, int num_pages)  in ceph_release_page_vector()  argument
66 		__free_pages(pages[i], 0);  in ceph_release_page_vector()
67 	kfree(pages);  in ceph_release_page_vector()
76 	struct page **pages;  in ceph_alloc_page_vector()  local
79 	pages = kmalloc(sizeof(*pages) * num_pages, flags);  in ceph_alloc_page_vector()
80 	if (!pages)  in ceph_alloc_page_vector()
83 		pages[i] = __page_cache_alloc(flags);  in ceph_alloc_page_vector()
84 		if (pages[i] == NULL) {  in ceph_alloc_page_vector()
85 			ceph_release_page_vector(pages, i);  in ceph_alloc_page_vector()
89 	return pages;  in ceph_alloc_page_vector()
96 int ceph_copy_user_to_page_vector(struct page **pages,  in ceph_copy_user_to_page_vector()  argument
107 		bad = copy_from_user(page_address(pages[i]) + po, data, l);  in ceph_copy_user_to_page_vector()
122 void ceph_copy_to_page_vector(struct page **pages,  in ceph_copy_to_page_vector()  argument
133 		memcpy(page_address(pages[i]) + po, data, l);  in ceph_copy_to_page_vector()
145 void ceph_copy_from_page_vector(struct page **pages,  in ceph_copy_from_page_vector()  argument
156 		memcpy(data, page_address(pages[i]) + po, l);  in ceph_copy_from_page_vector()
172 void ceph_zero_page_vector_range(int off, int len, struct page **pages)  in ceph_zero_page_vector_range()  argument
183 		dout("zeroing %d %p head from %d\n", i, pages[i],  in ceph_zero_page_vector_range()
185 		zero_user_segment(pages[i], off, end);  in ceph_zero_page_vector_range()
190 		dout("zeroing %d %p len=%d\n", i, pages[i], len);  in ceph_zero_page_vector_range()
191 		zero_user_segment(pages[i], 0, PAGE_CACHE_SIZE);  in ceph_zero_page_vector_range()
197 		dout("zeroing %d %p tail to %d\n", i, pages[i], (int)len);  in ceph_zero_page_vector_range()
198 		zero_user_segment(pages[i], 0, len);  in ceph_zero_page_vector_range()