}
unsigned find_get_entries(struct address_space *mapping, pgoff_t start,
- unsigned int nr_entries, struct page **entries,
- pgoff_t *indices);
+ pgoff_t end, unsigned int nr_entries, struct page **entries,
+ pgoff_t *indices);
unsigned find_get_pages_range(struct address_space *mapping, pgoff_t *start,
pgoff_t end, unsigned int nr_pages,
struct page **pages);
* find_get_entries - gang pagecache lookup
* @mapping: The address_space to search
* @start: The starting page cache index
+ * @end: The final page index (inclusive).
* @nr_entries: The maximum number of entries
* @entries: Where the resulting entries are placed
* @indices: The cache indices corresponding to the entries in @entries
*
* Return: the number of pages and shadow entries which were found.
*/
-unsigned find_get_entries(struct address_space *mapping,
- pgoff_t start, unsigned int nr_entries,
- struct page **entries, pgoff_t *indices)
+unsigned find_get_entries(struct address_space *mapping, pgoff_t start,
+ pgoff_t end, unsigned int nr_entries, struct page **entries,
+ pgoff_t *indices)
{
XA_STATE(xas, &mapping->i_pages, start);
struct page *page;
return 0;
rcu_read_lock();
- while ((page = find_get_entry(&xas, ULONG_MAX, XA_PRESENT))) {
+ while ((page = find_get_entry(&xas, end, XA_PRESENT))) {
/*
* Terminate early on finding a THP, to allow the caller to
* handle it all at once; but continue if this is hugetlbfs.
struct page *page = pvec.pages[i];
index = indices[i];
- if (index >= end)
- break;
if (xa_is_value(page)) {
if (unfalloc)
while (index < end) {
cond_resched();
- pvec.nr = find_get_entries(mapping, index,
- min(end - index, (pgoff_t)PAGEVEC_SIZE),
- pvec.pages, indices);
+ pvec.nr = find_get_entries(mapping, index, end - 1,
+ PAGEVEC_SIZE, pvec.pages, indices);
if (!pvec.nr) {
/* If all gone or hole-punch or unfalloc, we're done */
if (index == start || end != -1)
struct page *page = pvec.pages[i];
index = indices[i];
- if (index >= end)
- break;
-
if (xa_is_value(page)) {
if (unfalloc)
continue;
pgoff_t start, unsigned nr_entries,
pgoff_t *indices)
{
- pvec->nr = find_get_entries(mapping, start, nr_entries,
+ pvec->nr = find_get_entries(mapping, start, ULONG_MAX, nr_entries,
pvec->pages, indices);
return pagevec_count(pvec);
}