From nobody Tue Feb 10 16:18:42 2026 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1EE57205E00 for ; Mon, 7 Apr 2025 15:57:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744041474; cv=none; b=aY4izTWYtLwFXCwbqjTGVnTkQxXhLOuQzBPCZ4YWL071WM3dHhPvTYBbSxFjQI2kvhXK/9avbOoN7tbhhOux1lgYrqRJLOjHp0CSXpDe542fFjEPxcNIGzwyve1+82sOvjVMAB+O/OsPSoRWHnCX/iiZwrI3ncDpJucDzuE4Hb8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744041474; c=relaxed/simple; bh=LqNzPbHVr/YdzrkJlwIphlHRZxx/nS6ZHMaT8AIKgss=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=p4KQR3E6xkwweRs/i1aGzxSuBy/Thcb0BhOCJNn8UmeMUkr3Yvx6cECbDKYqnzo7JehCQz/NZZ9xhjgBWEtYQV0tOecuFXwJl9Ud3/I8yEcTAIibgQu0NWfg27YYQTRIgLUdx7/2SqSikB94V7kZl3vV9WV/IS5wan2lQ5aHW3w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=yWLgnoFv; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=nloc9rNr; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="yWLgnoFv"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="nloc9rNr" From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1744041469; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Ixf69cvPKcltCaDhuFinxelm76iWpbIm6Qn87X50Bzo=; b=yWLgnoFvUPICOhPatPB/D7LzrfxS1bzSu6i/gRACpAjDKr7RcAQ0Hpyc1WDl9e/gRSaEnA BUMvsPTUH9gDl+Nvh80aWqqbuKqI9Tv69y5S4jruKaL5pXV2MmlPHG6PJ2uBah7q045xBx K83WurKW8xN2NeXqmkFQPC9g4EQolM1VVfmvfDExR3BX4EeIU6/QyXxVS8qWYRXdJM1GoK D7uHjTX24rAW62i9W60zqfs7Mz35FkmFfPSPyGkjr7RWDZpkvBixuiYzS1APFpDYdfu1j7 VpW4x6ABscJAYnY36PhJ3P8eO+pdZDyc58jIGOW3UzfqeaxJhmVUYyhu+BoyQA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1744041469; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Ixf69cvPKcltCaDhuFinxelm76iWpbIm6Qn87X50Bzo=; b=nloc9rNrZ+pC/KMdcnegwHHTagOYm1U2SfqCc48eOnF6y5mnw0ffVcp06QwDu9OvAkmHAO hI9u57NGNYk497BQ== To: linux-kernel@vger.kernel.org Cc: =?UTF-8?q?Andr=C3=A9=20Almeida?= , Darren Hart , Davidlohr Bueso , Ingo Molnar , Juri Lelli , Peter Zijlstra , Thomas Gleixner , Valentin Schneider , Waiman Long , Andrew Morton , Uladzislau Rezki , Christoph Hellwig , linux-mm@kvack.org, Christoph Hellwig , Sebastian Andrzej Siewior Subject: [PATCH v11 02/19] mm: Add vmalloc_huge_node() Date: Mon, 7 Apr 2025 17:57:25 +0200 Message-ID: <20250407155742.968816-3-bigeasy@linutronix.de> In-Reply-To: <20250407155742.968816-1-bigeasy@linutronix.de> References: <20250407155742.968816-1-bigeasy@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Peter Zijlstra To enable node specific hash-tables using huge pages if possible. [bigeasy: use __vmalloc_node_range_noprof(), add nommu bits, inline vmalloc_huge] Cc: Andrew Morton Cc: Uladzislau Rezki Cc: Christoph Hellwig Cc: linux-mm@kvack.org Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Christoph Hellwig Signed-off-by: Sebastian Andrzej Siewior --- include/linux/vmalloc.h | 9 +++++++-- mm/nommu.c | 18 +++++++++++++++++- mm/vmalloc.c | 11 ++++++----- 3 files changed, 30 insertions(+), 8 deletions(-) diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 31e9ffd936e39..de95794777ad6 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -168,8 +168,13 @@ void *__vmalloc_node_noprof(unsigned long size, unsign= ed long align, gfp_t gfp_m int node, const void *caller) __alloc_size(1); #define __vmalloc_node(...) alloc_hooks(__vmalloc_node_noprof(__VA_ARGS__)) =20 -void *vmalloc_huge_noprof(unsigned long size, gfp_t gfp_mask) __alloc_size= (1); -#define vmalloc_huge(...) alloc_hooks(vmalloc_huge_noprof(__VA_ARGS__)) +void *vmalloc_huge_node_noprof(unsigned long size, gfp_t gfp_mask, int nod= e) __alloc_size(1); +#define vmalloc_huge_node(...) alloc_hooks(vmalloc_huge_node_noprof(__VA_A= RGS__)) + +static inline void *vmalloc_huge(unsigned long size, gfp_t gfp_mask) +{ + return vmalloc_huge_node(size, gfp_mask, NUMA_NO_NODE); +} =20 extern void *__vmalloc_array_noprof(size_t n, size_t size, gfp_t flags) __= alloc_size(1, 2); #define __vmalloc_array(...) alloc_hooks(__vmalloc_array_noprof(__VA_ARGS_= _)) diff --git a/mm/nommu.c b/mm/nommu.c index 617e7ba8022f5..70f92f9a7fab3 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -200,7 +200,23 @@ void *vmalloc_noprof(unsigned long size) } EXPORT_SYMBOL(vmalloc_noprof); =20 -void *vmalloc_huge_noprof(unsigned long size, gfp_t gfp_mask) __weak __ali= as(__vmalloc_noprof); +/* + * vmalloc_huge_node - allocate virtually contiguous memory, on a node + * + * @size: allocation size + * @gfp_mask: flags for the page level allocator + * @node: node to use for allocation or NUMA_NO_NODE + * + * Allocate enough pages to cover @size from the page level + * allocator and map them into contiguous kernel virtual space. + * + * Due to NOMMU implications the node argument and HUGE page attribute is + * ignored. + */ +void *vmalloc_huge_node_noprof(unsigned long size, gfp_t gfp_mask, int nod= e) +{ + return __vmalloc_noprof(size, gfp_mask); +} =20 /* * vzalloc - allocate virtually contiguous memory with zero fill diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 3ed720a787ecd..8b9f6d3c099dd 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -3943,9 +3943,10 @@ void *vmalloc_noprof(unsigned long size) EXPORT_SYMBOL(vmalloc_noprof); =20 /** - * vmalloc_huge - allocate virtually contiguous memory, allow huge pages + * vmalloc_huge_node - allocate virtually contiguous memory, allow huge pa= ges * @size: allocation size * @gfp_mask: flags for the page level allocator + * @node: node to use for allocation or NUMA_NO_NODE * * Allocate enough pages to cover @size from the page level * allocator and map them into contiguous kernel virtual space. @@ -3954,13 +3955,13 @@ EXPORT_SYMBOL(vmalloc_noprof); * * Return: pointer to the allocated memory or %NULL on error */ -void *vmalloc_huge_noprof(unsigned long size, gfp_t gfp_mask) +void *vmalloc_huge_node_noprof(unsigned long size, gfp_t gfp_mask, int nod= e) { return __vmalloc_node_range_noprof(size, 1, VMALLOC_START, VMALLOC_END, - gfp_mask, PAGE_KERNEL, VM_ALLOW_HUGE_VMAP, - NUMA_NO_NODE, __builtin_return_address(0)); + gfp_mask, PAGE_KERNEL, VM_ALLOW_HUGE_VMAP, + node, __builtin_return_address(0)); } -EXPORT_SYMBOL_GPL(vmalloc_huge_noprof); +EXPORT_SYMBOL_GPL(vmalloc_huge_node_noprof); =20 /** * vzalloc - allocate virtually contiguous memory with zero fill --=20 2.49.0