unimore/kernel-hacking-2024-linux-steffo
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btrfs: convert try_release_extent_mapping() to take a folio

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The old page API is being gradually replaced and converted to use folio
to improve code readability and avoid repeated conversion between page
and folio. And page_to_inode() can be replaced with folio_to_inode() now.

Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Li Zetao 2024-08-29 02:29:03 +08:00 committed by David Sterba
parent dd0a8df455
commit 046c0d6596
3 changed files with 5 additions and 5 deletions
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6
fs/btrfs/extent_io.c
View file

@ -2341,11 +2341,11 @@ static bool try_release_extent_state(struct extent_io_tree *tree,
* in the range corresponding to the page, both state records and extent
* map records are removed
*/
bool try_release_extent_mapping(struct page *page, gfp_t mask)
bool try_release_extent_mapping(struct folio *folio, gfp_t mask)
{
u64 start = page_offset(page);
u64 start = folio_pos(folio);
u64 end = start + PAGE_SIZE - 1;
struct btrfs_inode *inode = page_to_inode(page);
struct btrfs_inode *inode = folio_to_inode(folio);
struct extent_io_tree *io_tree = &inode->io_tree;
while (start <= end) {

2
fs/btrfs/extent_io.h
View file

@ -236,7 +236,7 @@ static inline void extent_changeset_free(struct extent_changeset *changeset)
kfree(changeset);
}
bool try_release_extent_mapping(struct page *page, gfp_t mask);
bool try_release_extent_mapping(struct folio *folio, gfp_t mask);
int try_release_extent_buffer(struct folio *folio);
int btrfs_read_folio(struct file *file, struct folio *folio);

2
fs/btrfs/inode.c
View file

@ -7238,7 +7238,7 @@ static int btrfs_launder_folio(struct folio *folio)
static bool __btrfs_release_folio(struct folio *folio, gfp_t gfp_flags)
{
if (try_release_extent_mapping(&folio->page, gfp_flags)) {
if (try_release_extent_mapping(folio, gfp_flags)) {
wait_subpage_spinlock(folio);
clear_folio_extent_mapped(folio);
return true;