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ada02c207c
The journal_write_done() handler was reworked into a loop in commit
746a33c96b7a ("bcachefs: better journal pipelining"). As part of this,
the journal buffer wake was factored into a post-loop branch that
executes if at least one journal buffer has completed.
The journal buffer processing loop iterates on the journal buffer
pointer, however. This means that w refers to the last buffer processed
by the loop, which may or may not be done. This also means that if
multiple buffers are processed by the loop, only the last is awoken.
This lost wakeup behavior has lead to stalling problems in various CI
and fstests, such as generic/703.
Lift the wake into the loop so each done buffer sees a wake call as
it is processed.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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.