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fuse: convert fuse_writepages_fill() to use a folio for its tmp page

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To pave the way for refactoring out the shared logic in
fuse_writepages_fill() and fuse_writepage_locked(), this change converts
the temporary page in fuse_writepages_fill() to use the folio API.

This is similar to the change in commit e0887e095a ("fuse: Convert
fuse_writepage_locked to take a folio"), which converted the tmp page in
fuse_writepage_locked() to use the folio API.

inc_node_page_state() is intentionally preserved here instead of
converting to node_stat_add_folio() since it is updating the stat of the
underlying page and to better maintain API symmetry with
dec_node_page_stat() in fuse_writepage_finish_stat().

No functional changes added.

Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Joanne Koong 2024-08-26 14:19:06 -07:00 committed by Miklos Szeredi
parent 672c3b7457
commit 9a8ebcf5e0
1 changed files with 7 additions and 7 deletions
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14
fs/fuse/file.c
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@ -2260,7 +2260,7 @@ static int fuse_writepages_fill(struct folio *folio,
struct inode *inode = data->inode;
struct fuse_inode *fi = get_fuse_inode(inode);
struct fuse_conn *fc = get_fuse_conn(inode);
struct page *tmp_page;
struct folio *tmp_folio;
int err;
if (wpa && fuse_writepage_need_send(fc, &folio->page, ap, data)) {
@ -2269,8 +2269,8 @@ static int fuse_writepages_fill(struct folio *folio,
}
err = -ENOMEM;
tmp_page = alloc_page(GFP_NOFS | __GFP_HIGHMEM);
if (!tmp_page)
tmp_folio = folio_alloc(GFP_NOFS | __GFP_HIGHMEM, 0);
if (!tmp_folio)
goto out_unlock;
/*
@ -2290,7 +2290,7 @@ static int fuse_writepages_fill(struct folio *folio,
err = -ENOMEM;
wpa = fuse_writepage_args_alloc();
if (!wpa) {
__free_page(tmp_page);
folio_put(tmp_folio);
goto out_unlock;
}
fuse_writepage_add_to_bucket(fc, wpa);
@ -2308,14 +2308,14 @@ static int fuse_writepages_fill(struct folio *folio,
}
folio_start_writeback(folio);
copy_highpage(tmp_page, &folio->page);
ap->pages[ap->num_pages] = tmp_page;
folio_copy(tmp_folio, folio);
ap->pages[ap->num_pages] = &tmp_folio->page;
ap->descs[ap->num_pages].offset = 0;
ap->descs[ap->num_pages].length = PAGE_SIZE;
data->orig_pages[ap->num_pages] = &folio->page;
inc_wb_stat(&inode_to_bdi(inode)->wb, WB_WRITEBACK);
inc_node_page_state(tmp_page, NR_WRITEBACK_TEMP);
inc_node_page_state(&tmp_folio->page, NR_WRITEBACK_TEMP);
err = 0;
if (data->wpa) {