korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-28 14:44:10 +08:00
Code Issues Packages Projects Releases Wiki Activity

btrfs: add set_folio_extent_mapped() helper

Browse Source 
Turn set_page_extent_mapped() into a wrapper around this version.
Saves a call to compound_head() for callers who already have a folio
and removes a couple of users of page->mapping.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Matthew Wilcox (Oracle) 2023-12-14 16:13:29 +00:00 committed by David Sterba
parent 8fd2b12e6a
commit dfba9f4773
2 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
fs/btrfs/extent_io.c
View File

@ -930,17 +930,21 @@ static int attach_extent_buffer_folio(struct extent_buffer *eb,
int set_page_extent_mapped(struct page *page) int set_page_extent_mapped(struct page *page)
{ {
struct folio *folio = page_folio(page); return set_folio_extent_mapped(page_folio(page));
}
int set_folio_extent_mapped(struct folio *folio)
{
struct btrfs_fs_info *fs_info; struct btrfs_fs_info *fs_info;
ASSERT(page->mapping); ASSERT(folio->mapping);
if (folio_test_private(folio)) if (folio_test_private(folio))
return 0; return 0;
fs_info = btrfs_sb(page->mapping->host->i_sb); fs_info = btrfs_sb(folio->mapping->host->i_sb);
if (btrfs_is_subpage(fs_info, page->mapping)) if (btrfs_is_subpage(fs_info, folio->mapping))
return btrfs_attach_subpage(fs_info, folio, BTRFS_SUBPAGE_DATA); return btrfs_attach_subpage(fs_info, folio, BTRFS_SUBPAGE_DATA);
folio_attach_private(folio, (void *)EXTENT_FOLIO_PRIVATE); folio_attach_private(folio, (void *)EXTENT_FOLIO_PRIVATE);

1
fs/btrfs/extent_io.h
View File

@ -229,6 +229,7 @@ int btree_write_cache_pages(struct address_space *mapping,
void extent_readahead(struct readahead_control *rac); void extent_readahead(struct readahead_control *rac);
int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo, int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len); u64 start, u64 len);
int set_folio_extent_mapped(struct folio *folio);
int set_page_extent_mapped(struct page *page); int set_page_extent_mapped(struct page *page);
void clear_page_extent_mapped(struct page *page); void clear_page_extent_mapped(struct page *page);