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| Filename | Latest commit message | Latest commit date |
|---|---|---|
bb8965bd82
Memory migration might fail during offlining and we keep retrying in that case. This is currently obfuscated by goto retry loop. The code is hard to follow and as a result it is even suboptimal becase each retry round scans the full range from start_pfn even though we have successfully scanned/migrated [start_pfn, pfn] range already. This is all only because check_pages_isolated failure has to rescan the full range again. De-obfuscate the migration retry loop by promoting it to a real for loop. In fact remove the goto altogether by making it a proper double loop (yeah, gotos are nasty in this specific case). In the end we will get a slightly more optimal code which is better readable. [akpm@linux-foundation.org: reflow comments to 80 cols] Link: http://lkml.kernel.org/r/20181211142741.2607-3-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Cc: Hugh Dickins <hughd@google.com> Cc: Jan Kara <jack@suse.cz> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Pavel Tatashin <pasha.tatashin@soleen.com> Cc: William Kucharski <william.kucharski@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| README | ||
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.