@@ -31,9 +31,9 @@
* in the "sys_write -> alloc_pages -> direct reclaim path". So, in
* 'ubifs_writepage()' we are only guaranteed that the page is locked.
*
- * Similarly, @i_mutex is not always locked in 'ubifs_readpage()', e.g., the
+ * Similarly, @i_mutex is not always locked in 'ubifs_read_folio()', e.g., the
* read-ahead path does not lock it ("sys_read -> generic_file_aio_read ->
- * ondemand_readahead -> readpage"). In case of readahead, @I_SYNC flag is not
+ * ondemand_readahead -> read_folio"). In case of readahead, @I_SYNC flag is not
* set as well. However, UBIFS disables readahead.
*/
@@ -889,12 +889,14 @@ static int ubifs_bulk_read(struct page *page)
return err;
}
-static int ubifs_readpage(struct file *file, struct page *page)
+static int ubifs_read_folio(struct file *file, struct folio *folio)
{
+ struct page *page = &folio->page;
+
if (ubifs_bulk_read(page))
return 0;
do_readpage(page);
- unlock_page(page);
+ folio_unlock(folio);
return 0;
}
@@ -1641,7 +1643,7 @@ static int ubifs_symlink_getattr(struct user_namespace *mnt_userns,
}
const struct address_space_operations ubifs_file_address_operations = {
- .readpage = ubifs_readpage,
+ .read_folio = ubifs_read_folio,
.writepage = ubifs_writepage,
.write_begin = ubifs_write_begin,
.write_end = ubifs_write_end,
@@ -2191,7 +2191,7 @@ static int ubifs_fill_super(struct super_block *sb, void *data, int silent)
/*
* UBIFS provides 'backing_dev_info' in order to disable read-ahead. For
- * UBIFS, I/O is not deferred, it is done immediately in readpage,
+ * UBIFS, I/O is not deferred, it is done immediately in read_folio,
* which means the user would have to wait not just for their own I/O
* but the read-ahead I/O as well i.e. completely pointless.
*
This is a "weak" conversion which converts straight back to using pages. A full conversion should be performed at some point, hopefully by someone familiar with the filesystem. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> --- fs/ubifs/file.c | 12 +++++++----- fs/ubifs/super.c | 2 +- 2 files changed, 8 insertions(+), 6 deletions(-)