diff options
Diffstat (limited to 'mm/shmem.c')
| -rw-r--r-- | mm/shmem.c | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/mm/shmem.c b/mm/shmem.c index 2faa9daaf54b..b875852df51f 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1629,11 +1629,6 @@ unsigned long shmem_allowable_huge_orders(struct inode *inode, unsigned long mask = READ_ONCE(huge_shmem_orders_always); unsigned long within_size_orders = READ_ONCE(huge_shmem_orders_within_size); unsigned long vm_flags = vma->vm_flags; - /* - * Check all the (large) orders below HPAGE_PMD_ORDER + 1 that - * are enabled for this vma. - */ - unsigned long orders = BIT(PMD_ORDER + 1) - 1; loff_t i_size; int order; @@ -1678,7 +1673,7 @@ unsigned long shmem_allowable_huge_orders(struct inode *inode, if (global_huge) mask |= READ_ONCE(huge_shmem_orders_inherit); - return orders & mask; + return THP_ORDERS_ALL_FILE_DEFAULT & mask; } static unsigned long shmem_suitable_orders(struct inode *inode, struct vm_fault *vmf, @@ -1686,6 +1681,7 @@ static unsigned long shmem_suitable_orders(struct inode *inode, struct vm_fault unsigned long orders) { struct vm_area_struct *vma = vmf->vma; + pgoff_t aligned_index; unsigned long pages; int order; @@ -1697,9 +1693,9 @@ static unsigned long shmem_suitable_orders(struct inode *inode, struct vm_fault order = highest_order(orders); while (orders) { pages = 1UL << order; - index = round_down(index, pages); - if (!xa_find(&mapping->i_pages, &index, - index + pages - 1, XA_PRESENT)) + aligned_index = round_down(index, pages); + if (!xa_find(&mapping->i_pages, &aligned_index, + aligned_index + pages - 1, XA_PRESENT)) break; order = next_order(&orders, order); } @@ -2882,7 +2878,7 @@ static const struct inode_operations shmem_short_symlink_operations; static int shmem_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, - struct page **pagep, void **fsdata) + struct folio **foliop, void **fsdata) { struct inode *inode = mapping->host; struct shmem_inode_info *info = SHMEM_I(inode); @@ -2903,23 +2899,22 @@ shmem_write_begin(struct file *file, struct address_space *mapping, if (ret) return ret; - *pagep = folio_file_page(folio, index); - if (PageHWPoison(*pagep)) { + if (folio_test_hwpoison(folio) || + (folio_test_large(folio) && folio_test_has_hwpoisoned(folio))) { folio_unlock(folio); folio_put(folio); - *pagep = NULL; return -EIO; } + *foliop = folio; return 0; } static int shmem_write_end(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, - struct page *page, void *fsdata) + struct folio *folio, void *fsdata) { - struct folio *folio = page_folio(page); struct inode *inode = mapping->host; if (pos + copied > inode->i_size) |