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d5c8aec054
Update move_vma() to use the threaded VRM object, de-duplicate code and separate into smaller functions to aid readability and debug-ability. This in turn allows further simplification of expand_vma() as we can simply thread VRM through the function. We also take the opportunity to abstract the account charging page count into the VRM in order that we can correctly thread this through the operation. We additionally do the same for tracking mm statistics - exec_vm, stack_vm, data_vm, and locked_vm. As part of this change, we slightly modify when locked pages statistics are counted for in mm_struct statistics. However this should cause no issues, as there is no chance of underflow, nor will any rlimit failures occur as a result. This is an intermediate step before a further refactoring of move_vma() in order to aid review. Link: https://lkml.kernel.org/r/ab611d6efae11bddab2db2b8bb3925b1d1954c7d.1741639347.git.lorenzo.stoakes@oracle.com Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@Oracle.com> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Cc: Harry Yoo <harry.yoo@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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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.