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c0960603e2
We're seeing occasional firings of the assertion in the key cache shutdown code that nr_dirty == 0, which means we must sometimes be doing transaction commits after we've gone read only. Cleanups & changes: - BCH_FS_ALLOC_CLEAN renamed to BCH_FS_CLEAN_SHUTDOWN - new helper bch2_btree_interior_updates_flush(), which returns true if it had to wait - bch2_btree_flush_writes() now also returns true if there were btree writes in flight - __bch2_fs_read_only now checks if btree writes were in flight in the shutdown loop: btree write completion does a transaction update, to update the pointer in the parent node - assert that !BCH_FS_CLEAN_SHUTDOWN in __bch2_trans_commit Signed-off-by: Kent Overstreet <kent.overstreet@gmail.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 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.