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.
Matthew Wilcox (Oracle)
authored
Even though we had successfully mapped the relevant page, we would rarely return success from filemap_map_folio_range(). That leads to falling back from the VMA lock path to the mmap_lock path, which is a speed & scalability issue. Found by inspection. Link: https://lkml.kernel.org/r/20230920035336.854212-1-willy@infradead.org Fixes: 617c28ec ("filemap: batch PTE mappings") Signed-off-by:Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by:
Yin Fengwei <fengwei.yin@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org>