diff options
| author | Paolo Abeni <[email protected]> | 2024-10-21 09:14:18 +0200 |
|---|---|---|
| committer | Paolo Abeni <[email protected]> | 2024-10-21 09:14:18 +0200 |
| commit | 91afa49a3eda8ebf902ce68f02cb16b48c879b6a (patch) | |
| tree | 3ceca7290ee7358c8e647b27f992604ce9c7ec20 /fs/btrfs/delayed-ref.h | |
| parent | 906c68657850796023a8b183d1ca681ebbd6ef98 (diff) | |
| parent | 07d6bf634bc8f93caf8920c9d61df761645336e2 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.12-rc4).
Conflicts:
107a034d5c1e ("net/mlx5: qos: Store rate groups in a qos domain")
1da9cfd6c41c ("net/mlx5: Unregister notifier on eswitch init failure")
Signed-off-by: Paolo Abeni <[email protected]>
Diffstat (limited to 'fs/btrfs/delayed-ref.h')
| -rw-r--r-- | fs/btrfs/delayed-ref.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h index 085f30968aba..352921e76c74 100644 --- a/fs/btrfs/delayed-ref.h +++ b/fs/btrfs/delayed-ref.h @@ -202,7 +202,15 @@ struct btrfs_delayed_ref_root { /* head ref rbtree */ struct rb_root_cached href_root; - /* Track dirty extent records. */ + /* + * Track dirty extent records. + * The keys correspond to the logical address of the extent ("bytenr") + * right shifted by fs_info->sectorsize_bits. This is both to get a more + * dense index space (optimizes xarray structure) and because indexes in + * xarrays are of "unsigned long" type, meaning they are 32 bits wide on + * 32 bits platforms, limiting the extent range to 4G which is too low + * and makes it unusable (truncated index values) on 32 bits platforms. + */ struct xarray dirty_extents; /* this spin lock protects the rbtree and the entries inside */ |