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| author | David Sterba <dsterba@suse.com> | 2023-09-13 16:11:29 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2024-03-04 16:24:49 +0100 |
| commit | c8293894afa718653688b2fa98ab68317c875a00 (patch) | |
| tree | 470bf3dfdc68cdaea79bd4ef0c9c8d7fa2811d96 /fs/btrfs/extent_io.c | |
| parent | b2136cc288fce2f24a92f3d656531b2d50ebec5a (diff) | |
| download | linux-stable-c8293894afa718653688b2fa98ab68317c875a00.tar.gz linux-stable-c8293894afa718653688b2fa98ab68317c875a00.tar.bz2 linux-stable-c8293894afa718653688b2fa98ab68317c875a00.zip | |
btrfs: add helpers to get inode from page/folio pointers
Add convenience helpers to get a struct btrfs_inode from a page or folio
pointer instead of open coding the chain or intermediate BTRFS_I. This
is implemented as a macro (still with type checking) so we don't need
full definitions of struct page or address_space.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent_io.c')
| -rw-r--r-- | fs/btrfs/extent_io.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 2c4fd7d3c0e3..e2416b55432f 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -819,7 +819,7 @@ static void submit_extent_page(struct btrfs_bio_ctrl *bio_ctrl, u64 disk_bytenr, struct page *page, size_t size, unsigned long pg_offset) { - struct btrfs_inode *inode = BTRFS_I(page->mapping->host); + struct btrfs_inode *inode = page_to_inode(page); ASSERT(pg_offset + size <= PAGE_SIZE); ASSERT(bio_ctrl->end_io_func); @@ -1151,7 +1151,7 @@ static int btrfs_do_readpage(struct page *page, struct extent_map **em_cached, int btrfs_read_folio(struct file *file, struct folio *folio) { struct page *page = &folio->page; - struct btrfs_inode *inode = BTRFS_I(page->mapping->host); + struct btrfs_inode *inode = page_to_inode(page); u64 start = page_offset(page); u64 end = start + PAGE_SIZE - 1; struct btrfs_bio_ctrl bio_ctrl = { .opf = REQ_OP_READ }; @@ -1174,7 +1174,7 @@ static inline void contiguous_readpages(struct page *pages[], int nr_pages, struct btrfs_bio_ctrl *bio_ctrl, u64 *prev_em_start) { - struct btrfs_inode *inode = BTRFS_I(pages[0]->mapping->host); + struct btrfs_inode *inode = page_to_inode(pages[0]); int index; btrfs_lock_and_flush_ordered_range(inode, start, end, NULL); @@ -2372,7 +2372,7 @@ int try_release_extent_mapping(struct page *page, gfp_t mask) struct extent_map *em; u64 start = page_offset(page); u64 end = start + PAGE_SIZE - 1; - struct btrfs_inode *btrfs_inode = BTRFS_I(page->mapping->host); + struct btrfs_inode *btrfs_inode = page_to_inode(page); struct extent_io_tree *tree = &btrfs_inode->io_tree; struct extent_map_tree *map = &btrfs_inode->extent_tree; |