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d4d788a776
First added (but not effectively used) in02c372e1f0("btrfs: add support for inserting raid stripe extents"). The structure is initialized to zeros so the only use in btrfs_insert_one_raid_extent() u64 length = bioc->stripes[i].length; struct btrfs_raid_stride *raid_stride = &stripe_extent->strides[i]; if (length == 0) length = bioc->size; the 'if' always happens. Last use in4016358e85("btrfs: remove unused variable length in btrfs_insert_one_raid_extent()") was an obvious cleanup. It seems to be safe to remove, raid-stripe-tree works without using it since 6.6. This was found by tool https://github.com/jirislaby/clang-struct . Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: David Sterba <dsterba@suse.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.