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eff41389d8
Only mips and loongarch implemented this API, however what it does was checking against stack overflow for either len or addr. That's already done in arch's arch_get_unmapped_area*() functions, even though it may not be 100% identical checks. For example, for both of the architectures, there will be a trivial difference on how stack top was defined. The old code uses STACK_TOP which may be slightly smaller than TASK_SIZE on either of them, but the hope is that shouldn't be a problem. It means the whole API is pretty much obsolete at least now, remove it completely. Link: https://lkml.kernel.org/r/20250627160707.2124580-1-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Acked-by: David Hildenbrand <david@redhat.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Muchun Song <muchun.song@linux.dev> Cc: Jann Horn <jannh@google.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Pedro Falcato <pfalcato@suse.de> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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.