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nilfs2: convert nilfs_mdt_get_frozen_buffer to use a folio

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Remove a number of folio->page->folio conversions.

Link: https://lkml.kernel.org/r/20231016201114.1928083-15-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Pankaj Raghav <p.raghav@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2023-10-16 21:11:01 +01:00 committed by Andrew Morton
parent 1a846bf388
commit 664c87b75e
1 changed files with 9 additions and 7 deletions
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16
fs/nilfs2/mdt.c
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@ -592,17 +592,19 @@ nilfs_mdt_get_frozen_buffer(struct inode *inode, struct buffer_head *bh)
{
struct nilfs_shadow_map *shadow = NILFS_MDT(inode)->mi_shadow;
struct buffer_head *bh_frozen = NULL;
struct page *page;
struct folio *folio;
int n;
page = find_lock_page(shadow->inode->i_mapping, bh->b_folio->index);
if (page) {
if (page_has_buffers(page)) {
folio = filemap_lock_folio(shadow->inode->i_mapping,
bh->b_folio->index);
if (!IS_ERR(folio)) {
bh_frozen = folio_buffers(folio);
if (bh_frozen) {
n = bh_offset(bh) >> inode->i_blkbits;
bh_frozen = nilfs_page_get_nth_block(page, n);
bh_frozen = get_nth_bh(bh_frozen, n);
}
unlock_page(page);
put_page(page);
folio_unlock(folio);
folio_put(folio);
}
return bh_frozen;
}