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David Alan Gilbert" , linux-mm@kvack.org, linux-kernel@vger.kernel.org, James Houghton Content-Type: text/plain; charset="UTF-8" ARC-Authentication-Results: i=1; imf03.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=Oi4b3uHi; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf03.hostedemail.com: domain of 3TPa1YgoKCC0ScQXdPQcXWPXXPUN.LXVURWdg-VVTeJLT.XaP@flex--jthoughton.bounces.google.com designates 209.85.221.202 as permitted sender) smtp.mailfrom=3TPa1YgoKCC0ScQXdPQcXWPXXPUN.LXVURWdg-VVTeJLT.XaP@flex--jthoughton.bounces.google.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1656092237; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=a/I3oVqLRkRj5HBns0MWW3Ig4smTJMVIYbM6WBPe2Ok=; b=2Cdwt7sDa6Ry0p0+BfZzhfPHwOZ1iB45xrnmj/RXzECIXhNepFmCno/vHoqgsPq83wNnkH wq5yCl9BPZ0vgRxPKc5kB+MytcrDdfUDX7JG+kbQ5ZKFD5eiwUtbarcbXQFCyJHakZ7ECM djCYrIPhqfd49XW37xb0KOTkTvwrstA= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1656092237; a=rsa-sha256; cv=none; b=FEbgkbv/ZfXGrz4JiylUiEKPQKemLZyey2+0FLqNarkbPR+5Zb9I6BnACpGIeAC5KB6frG JSBeldfG1IQcJKLkT2pxVovng7UhB8hlp+XWUSxwNEJfgmiJqQarpXH8W3vvR7RyYra7gL Omx8Yqp+GFDoFaqPkfQC4t4XT7IRWRU= X-Stat-Signature: 6apoknntit4xxg31iio3i793znp5rqoq X-Rspamd-Queue-Id: 4E5282001C X-Rspam-User: Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=Oi4b3uHi; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf03.hostedemail.com: domain of 3TPa1YgoKCC0ScQXdPQcXWPXXPUN.LXVURWdg-VVTeJLT.XaP@flex--jthoughton.bounces.google.com designates 209.85.221.202 as permitted sender) smtp.mailfrom=3TPa1YgoKCC0ScQXdPQcXWPXXPUN.LXVURWdg-VVTeJLT.XaP@flex--jthoughton.bounces.google.com X-Rspamd-Server: rspam12 X-HE-Tag: 1656092237-887624 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This adds the Kconfig to enable or disable high-granularity mapping. It is enabled by default for architectures that use ARCH_WANT_GENERAL_HUGETLB. There is also an arch-specific config ARCH_HAS_SPECIAL_HUGETLB_HGM which controls whether or not the architecture has been updated to support HGM if it doesn't use general HugeTLB. Signed-off-by: James Houghton --- fs/Kconfig | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/Kconfig b/fs/Kconfig index 5976eb33535f..d76c7d812656 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -268,6 +268,13 @@ config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON to enable optimizing vmemmap pages of HugeTLB by default. It can then be disabled on the command line via hugetlb_free_vmemmap=off. +config ARCH_HAS_SPECIAL_HUGETLB_HGM + bool + +config HUGETLB_HIGH_GRANULARITY_MAPPING + def_bool ARCH_WANT_GENERAL_HUGETLB || ARCH_HAS_SPECIAL_HUGETLB_HGM + depends on HUGETLB_PAGE + config MEMFD_CREATE def_bool TMPFS || HUGETLBFS -- 2.37.0.rc0.161.g10f37bed90-goog