@@ -1772,7 +1772,7 @@ int ceph_mmap(struct file *file, struct vm_area_struct *vma)
{
struct address_space *mapping = file->f_mapping;
- if (!mapping->a_ops->readpage)
+ if (!mapping->a_ops->read_folio)
return -ENOEXEC;
file_accessed(file);
vma->vm_ops = &ceph_vmops;
@@ -262,7 +262,7 @@ struct iattr {
* trying again. The aop will be taking reasonable
* precautions not to livelock. If the caller held a page
* reference, it should drop it before retrying. Returned
- * by readpage().
+ * by read_folio().
*
* address_space_operation functions return these large constants to indicate
* special semantics to the caller. These are much larger than the bytes in a
@@ -335,10 +335,7 @@ static inline bool is_sync_kiocb(struct kiocb *kiocb)
struct address_space_operations {
int (*writepage)(struct page *page, struct writeback_control *wbc);
- union {
- int (*readpage)(struct file *, struct page *);
- int (*read_folio)(struct file *, struct folio *);
- };
+ int (*read_folio)(struct file *, struct folio *);
/* Write back some dirty pages from this mapping. */
int (*writepages)(struct address_space *, struct writeback_control *);
@@ -787,10 +787,10 @@ static int __copy_insn(struct address_space *mapping, struct file *filp,
struct page *page;
/*
* Ensure that the page that has the original instruction is populated
- * and in page-cache. If ->readpage == NULL it must be shmem_mapping(),
+ * and in page-cache. If ->read_folio == NULL it must be shmem_mapping(),
* see uprobe_register().
*/
- if (mapping->a_ops->readpage)
+ if (mapping->a_ops->read_folio)
page = read_mapping_page(mapping, offset >> PAGE_SHIFT, filp);
else
page = shmem_read_mapping_page(mapping, offset >> PAGE_SHIFT);
@@ -1143,7 +1143,8 @@ static int __uprobe_register(struct inode *inode, loff_t offset,
return -EINVAL;
/* copy_insn() uses read_mapping_page() or shmem_read_mapping_page() */
- if (!inode->i_mapping->a_ops->readpage && !shmem_mapping(inode->i_mapping))
+ if (!inode->i_mapping->a_ops->read_folio &&
+ !shmem_mapping(inode->i_mapping))
return -EIO;
/* Racy, just to catch the obvious mistakes */
if (offset > i_size_read(inode))
@@ -2414,7 +2414,7 @@ static int filemap_read_folio(struct file *file, struct address_space *mapping,
/*
* A previous I/O error may have been due to temporary failures,
- * eg. multipath errors. PG_error will be set again if readpage
+ * eg. multipath errors. PG_error will be set again if read_folio
* fails.
*/
folio_clear_error(folio);
@@ -2636,7 +2636,7 @@ static int filemap_get_pages(struct kiocb *iocb, struct iov_iter *iter,
* @already_read: Number of bytes already read by the caller.
*
* Copies data from the page cache. If the data is not currently present,
- * uses the readahead and readpage address_space operations to fetch it.
+ * uses the readahead and read_folio address_space operations to fetch it.
*
* Return: Total number of bytes copied, including those already read by
* the caller. If an error happens before any bytes are copied, returns
@@ -555,11 +555,11 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr,
dump_page(page, "bad pte");
pr_alert("addr:%px vm_flags:%08lx anon_vma:%px mapping:%px index:%lx\n",
(void *)addr, vma->vm_flags, vma->anon_vma, mapping, index);
- pr_alert("file:%pD fault:%ps mmap:%ps readpage:%ps\n",
+ pr_alert("file:%pD fault:%ps mmap:%ps read_folio:%ps\n",
vma->vm_file,
vma->vm_ops ? vma->vm_ops->fault : NULL,
vma->vm_file ? vma->vm_file->f_op->mmap : NULL,
- mapping ? mapping->a_ops->readpage : NULL);
+ mapping ? mapping->a_ops->read_folio : NULL);
dump_stack();
add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
}
@@ -253,8 +253,8 @@ void page_cache_ra_unbounded(struct readahead_control *ractl,
}
/*
- * Now start the IO. We ignore I/O errors - if the page is not
- * uptodate then the caller will launch readpage again, and
+ * Now start the IO. We ignore I/O errors - if the folio is not
+ * uptodate then the caller will launch read_folio again, and
* will then handle the error.
*/
read_pages(ractl);
@@ -4162,7 +4162,7 @@ int shmem_zero_setup(struct vm_area_struct *vma)
*
* This behaves as a tmpfs "read_cache_page_gfp(mapping, index, gfp)",
* with any new page allocations done using the specified allocation flags.
- * But read_cache_page_gfp() uses the ->readpage() method: which does not
+ * But read_cache_page_gfp() uses the ->read_folio() method: which does not
* suit tmpfs, since it may have pages in swapcache, and needs to find those
* for itself; although drivers/gpu/drm i915 and ttm rely upon this support.
*
@@ -3041,7 +3041,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
/*
* Read the swap header.
*/
- if (!mapping->a_ops->readpage) {
+ if (!mapping->a_ops->read_folio) {
error = -EINVAL;
goto bad_swap_unlock_inode;
}
Get rid of all references to readpage. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> --- fs/ceph/addr.c | 2 +- include/linux/fs.h | 7 ++----- kernel/events/uprobes.c | 7 ++++--- mm/filemap.c | 4 ++-- mm/memory.c | 4 ++-- mm/readahead.c | 4 ++-- mm/shmem.c | 2 +- mm/swapfile.c | 2 +- 8 files changed, 15 insertions(+), 17 deletions(-)