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btrfs: switch grab_extent_buffer() to folios

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Use the folio API, remove page_folio/folio_page conversions.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba
2025-01-09 11:24:29 +01:00
parent cc8f51a355
commit a43caf82a1
1 changed files with 6 additions and 8 deletions
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14
fs/btrfs/extent_io.c
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@@ -2812,13 +2812,12 @@ struct extent_buffer *alloc_test_extent_buffer(struct btrfs_fs_info *fs_info,
}
#endif
static struct extent_buffer *grab_extent_buffer(
struct btrfs_fs_info *fs_info, struct page *page)
static struct extent_buffer *grab_extent_buffer(struct btrfs_fs_info *fs_info,
struct folio *folio)
{
struct folio *folio = page_folio(page);
struct extent_buffer *exists;
lockdep_assert_held(&page->mapping->i_private_lock);
lockdep_assert_held(&folio->mapping->i_private_lock);
/*
* For subpage case, we completely rely on radix tree to ensure we
@@ -2833,7 +2832,7 @@ static struct extent_buffer *grab_extent_buffer(
return NULL;
/*
* We could have already allocated an eb for this page and attached one
* We could have already allocated an eb for this folio and attached one
* so lets see if we can get a ref on the existing eb, and if we can we
* know it's good and we can just return that one, else we know we can
* just overwrite folio private.
@@ -2842,7 +2841,7 @@ static struct extent_buffer *grab_extent_buffer(
if (atomic_inc_not_zero(&exists->refs))
return exists;
WARN_ON(PageDirty(page));
WARN_ON(folio_test_dirty(folio));
folio_detach_private(folio);
return NULL;
}
@@ -2933,8 +2932,7 @@ static int attach_eb_folio_to_filemap(struct extent_buffer *eb, int i,
} else if (existing_folio) {
struct extent_buffer *existing_eb;
existing_eb = grab_extent_buffer(fs_info,
folio_page(existing_folio, 0));
existing_eb = grab_extent_buffer(fs_info, existing_folio);
if (existing_eb) {
/* The extent buffer still exists, we can use it directly. */
*found_eb_ret = existing_eb;