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ext4: Use a folio in ext4_journalled_write_end()

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Convert the incoming page to a folio to remove a few calls to
compound_head().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20230324180129.1220691-19-willy@infradead.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Matthew Wilcox
2023-03-24 18:01:18 +00:00
committed by Theodore Ts'o
parent 64fb313675
commit feb22b77b8
1 changed files with 7 additions and 5 deletions
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12
fs/ext4/inode.c
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@@ -1392,6 +1392,7 @@ static int ext4_journalled_write_end(struct file *file,
loff_t pos, unsigned len, unsigned copied,
struct page *page, void *fsdata)
{
struct folio *folio = page_folio(page);
handle_t *handle = ext4_journal_current_handle();
struct inode *inode = mapping->host;
loff_t old_size = inode->i_size;
@@ -1410,25 +1411,26 @@ static int ext4_journalled_write_end(struct file *file,
if (ext4_has_inline_data(inode))
return ext4_write_inline_data_end(inode, pos, len, copied, page);
if (unlikely(copied < len) && !PageUptodate(page)) {
if (unlikely(copied < len) && !folio_test_uptodate(folio)) {
copied = 0;
ext4_journalled_zero_new_buffers(handle, inode, page, from, to);
} else {
if (unlikely(copied < len))
ext4_journalled_zero_new_buffers(handle, inode, page,
from + copied, to);
ret = ext4_walk_page_buffers(handle, inode, page_buffers(page),
ret = ext4_walk_page_buffers(handle, inode,
folio_buffers(folio),
from, from + copied, &partial,
write_end_fn);
if (!partial)
SetPageUptodate(page);
folio_mark_uptodate(folio);
}
if (!verity)
size_changed = ext4_update_inode_size(inode, pos + copied);
ext4_set_inode_state(inode, EXT4_STATE_JDATA);
EXT4_I(inode)->i_datasync_tid = handle->h_transaction->t_tid;
unlock_page(page);
put_page(page);
folio_unlock(folio);
folio_put(folio);
if (old_size < pos && !verity)
pagecache_isize_extended(inode, old_size, pos);