e8d04c2abc
In xfs_trans_alloc, if the block reservation call returns ENOSPC, we call xfs_blockgc_free_space with a NULL icwalk structure to try to free space. Each frontend thread that encounters this situation starts its own walk of the inode cache to see if it can find anything, which is wasteful since we don't have any additional selection criteria. For this one common case, create a function that reschedules all pending background work immediately and flushes the workqueue so that the scan can run in parallel. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.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.