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ubifs: Use a folio in do_truncation()

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Convert from the old page APIs to the new folio APIs which saves
a few hidden calls to compound_head().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Matthew Wilcox (Oracle) 2024-01-24 17:52:47 +00:00 committed by Richard Weinberger
parent c35acef383
commit 783d074167
1 changed files with 12 additions and 12 deletions
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24
fs/ubifs/file.c
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@ -1153,11 +1153,11 @@ static int do_truncation(struct ubifs_info *c, struct inode *inode,
if (offset) {
pgoff_t index = new_size >> PAGE_SHIFT;
struct page *page;
struct folio *folio;
page = find_lock_page(inode->i_mapping, index);
if (page) {
if (PageDirty(page)) {
folio = filemap_lock_folio(inode->i_mapping, index);
if (!IS_ERR(folio)) {
if (folio_test_dirty(folio)) {
/*
* 'ubifs_jnl_truncate()' will try to truncate
* the last data node, but it contains
@ -1166,14 +1166,14 @@ static int do_truncation(struct ubifs_info *c, struct inode *inode,
* 'ubifs_jnl_truncate()' will see an already
* truncated (and up to date) data node.
*/
ubifs_assert(c, PagePrivate(page));
ubifs_assert(c, folio->private != NULL);
clear_page_dirty_for_io(page);
folio_clear_dirty_for_io(folio);
if (UBIFS_BLOCKS_PER_PAGE_SHIFT)
offset = new_size &
(PAGE_SIZE - 1);
err = do_writepage(page, offset);
put_page(page);
offset = offset_in_folio(folio,
new_size);
err = do_writepage(&folio->page, offset);
folio_put(folio);
if (err)
goto out_budg;
/*
@ -1186,8 +1186,8 @@ static int do_truncation(struct ubifs_info *c, struct inode *inode,
* to 'ubifs_jnl_truncate()' to save it from
* having to read it.
*/
unlock_page(page);
put_page(page);
folio_unlock(folio);
folio_put(folio);
}
}
}