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ddeda61360
If the order is greater than zero, allocate a folio when populating the RAM PFNs instead of allocating individual pages one after the other. For example if 2MB folios are used instead of 4KB pages, this reduces the number of calls to the allocation API by 512. v2: - Use page order instead of extra argument (Matthew Brost) - Allocate with folio_alloc() (Matthew Brost) - Loop for mpages and free_pages based on order (Matthew Brost) v3: - Fix loops in drm_pagemap_migrate_populate_ram_pfn() (Matthew Brost) v4: - Use folio_trylock(), set local variable to NULL (Matthew Brost) Cc: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://lore.kernel.org/r/20250805140028.599361-5-francois.dugast@intel.com Signed-off-by: Francois Dugast <francois.dugast@intel.com> |
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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 reStructuredText 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.