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| author | Qu Wenruo <wqu@suse.com> | 2021-01-26 11:33:53 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2021-02-09 00:59:02 +0300 |
| commit | 03a816b32be577fdeed2e17d95c2636b68f6860c (patch) | |
| tree | b8267a8db6714ca67d877d6211eb7b63013390f3 /fs/btrfs/subpage.h | |
| parent | a1d767c11cca0f9b6ddc56ea9561d441340d91a9 (diff) | |
| download | linux-03a816b32be577fdeed2e17d95c2636b68f6860c.tar.xz | |
btrfs: introduce helpers for subpage error status
Introduce the following functions to handle subpage error status:
- btrfs_subpage_set_error()
- btrfs_subpage_clear_error()
- btrfs_subpage_test_error()
These helpers can only be called when the page has subpage attached
and the range is ensured to be inside the page.
- btrfs_page_set_error()
- btrfs_page_clear_error()
- btrfs_page_test_error()
These helpers can handle both regular sector size and subpage without
problem.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/subpage.h')
| -rw-r--r-- | fs/btrfs/subpage.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/subpage.h b/fs/btrfs/subpage.h index 98d511cd75bf..f3c5def313a1 100644 --- a/fs/btrfs/subpage.h +++ b/fs/btrfs/subpage.h @@ -19,6 +19,7 @@ struct btrfs_subpage { /* Common members for both data and metadata pages */ spinlock_t lock; u16 uptodate_bitmap; + u16 error_bitmap; union { /* * Structures only used by metadata @@ -77,5 +78,6 @@ bool btrfs_page_test_##name(const struct btrfs_fs_info *fs_info, \ struct page *page, u64 start, u32 len); DECLARE_BTRFS_SUBPAGE_OPS(uptodate); +DECLARE_BTRFS_SUBPAGE_OPS(error); #endif |