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Kent Overstreet 5877d8876a bcachefs: Re-enable hash_redo_key()
When subvolumes & snapshots were rolled out, hash_redo_key() was
disabled due to some new complications - namely, bch2_hash_set() works
at the subvolume level, and fsck does not run in a defined subvolume,
instead working at the snapshot ID level.

This patch splits out bch2_hash_set_snapshot() from bch2_hash_set(), and
makes one small tweak for fsck:

 - Normally, bch2_hash_set() (and other dirent code) needs to know what
   subvolume we're in, because dirents that point to other subvolumes
   should only be visible in the subvolume they were created in, not
   other snapshots. We can't check that in fsck, so we just assume that
   all dirents are visible.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
History 2023-10-22 17:09:40 -04:00
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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 Restructured Text 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.