linux-kernel - [PATCH v4 0/2] mm: add vmalloc_no

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Message-Id: <20210614132357.10202-1-imbrenda@linux.ibm.com>
Date:   Mon, 14 Jun 2021 15:23:55 +0200
From:   Claudio Imbrenda <imbrenda@...ux.ibm.com>
To:     linux-kernel@...r.kernel.org
Cc:     kvm@...r.kernel.org, linux-s390@...r.kernel.org,
        frankja@...ux.ibm.com, borntraeger@...ibm.com, cohuck@...hat.com,
        david@...hat.com, linux-mm@...ck.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nicholas Piggin <npiggin@...il.com>,
        Uladzislau Rezki <urezki@...il.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        David Rientjes <rientjes@...gle.com>,
        Christoph Hellwig <hch@...radead.org>
Subject: [PATCH v4 0/2] mm: add vmalloc_no_huge and use it

Add vmalloc_no_huge and export it, so modules can allocate memory with
small pages.

Use the newly added vmalloc_no_huge in KVM on s390 to get around a
hardware limitation.

v3->v4:
* reword commit messages to be more clear
* add comment in the second patch

v2->v3:
* do not export __vmalloc_node_range
* add vmalloc_no_huge as a wrapper around __vmalloc_node_range
* use vmalloc_no_huge instead of __vmalloc_node_range in kvm on s390x

Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Nicholas Piggin <npiggin@...il.com>
Cc: Uladzislau Rezki (Sony) <urezki@...il.com>
Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: David Rientjes <rientjes@...gle.com>
Cc: Christoph Hellwig <hch@...radead.org>

Claudio Imbrenda (2):
  mm/vmalloc: add vmalloc_no_huge
  KVM: s390: prepare for hugepage vmalloc

 arch/s390/kvm/pv.c      |  7 ++++++-
 include/linux/vmalloc.h |  1 +
 mm/vmalloc.c            | 16 ++++++++++++++++
 3 files changed, 23 insertions(+), 1 deletion(-)

-- 
2.31.1