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Alistair Popple 675eaca1f4 mm/mmap: properly unaccount memory on mas_preallocate() failure
security_vm_enough_memory_mm() accounts memory via a call to
vm_acct_memory().  Therefore any subsequent failures should unaccount for
this memory prior to returning the error.

Link: https://lkml.kernel.org/r/20221202045339.2999017-1-apopple@nvidia.com
Fixes: 28c5609fb2 ("mm/mmap: preallocate maple nodes for brk vma expansion")
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
History 2022-12-11 18:12:18 -08:00
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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.