From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 57CA4377029 for ; Fri, 27 Mar 2026 17:49:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774633766; cv=none; b=kM1QBEkmvcRFOlys05VlD+VkLi9liNBS0Fh+jo/X2KoYvilxNnOUOdNivrWZ7KS/mSicFXzCxPC6BjJGYHYTnFhHvZ1ZnMA4zS32SnTMcXPv8LbkSPJqEe6aoDJhM/fnsWm2CTZ+IKCLZKIJiFGs7CSRUSQq4Yafk6VIU+jSjhI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774633766; c=relaxed/simple; bh=Uh4CraLVH0o9xpvGBRnDQLjIHEqpWICO9+ON3QrX3Yc=; h=Date:To:From:Subject:Message-Id; b=IFU+gas8o7I2b+bSXf57iyBI1yLM4rUs6giSd7mw2OrL1HCW6i1dWJ5Zefs8GFyI02/4/Nrzpm7CMlGRZLE6p0qiw9VM2BRvjaebnAcEUswXg6QKoOpwwj7T7Df/NxZW4clZ5d5z3as5AoMNCAcBKCxFn+cY1JM8auefMGXD2bU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=11AsbjhN; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="11AsbjhN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CFA90C19423; Fri, 27 Mar 2026 17:49:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1774633765; bh=Uh4CraLVH0o9xpvGBRnDQLjIHEqpWICO9+ON3QrX3Yc=; h=Date:To:From:Subject:From; b=11AsbjhNSPKypvmeXoQsu9ZjPHw5Dgwmn0Ah1H2mCA9BPuMPiQeENbsipBNlfP/zl NLQ0MXV2zGtFzQl3jF53lAKvsIoBkuNNv34m5XMTCGijtWhL69bVWsztc7fpchX6eA qeAC2vqcHN94T//UbKa9cxHcq75fx+WtHKGCdNm4= Date: Fri, 27 Mar 2026 10:49:25 -0700 To: mm-commits@vger.kernel.org,hch@lst.de,akpm@linux-foundation.org From: Andrew Morton Subject: + arm-xor-remove-in_interrupt-handling.patch added to mm-nonmm-unstable branch Message-Id: <20260327174925.CFA90C19423@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: arm/xor: remove in_interrupt() handling has been added to the -mm mm-nonmm-unstable branch. Its filename is arm-xor-remove-in_interrupt-handling.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/arm-xor-remove-in_interrupt-handling.patch This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: Christoph Hellwig Subject: arm/xor: remove in_interrupt() handling Date: Fri, 27 Mar 2026 07:16:34 +0100 xor_blocks can't be called from interrupt context, so remove the handling for that. Link: https://lkml.kernel.org/r/20260327061704.3707577-3-hch@lst.de Signed-off-by: Christoph Hellwig Cc: Albert Ou Cc: Alexander Gordeev Cc: Alexandre Ghiti Cc: Andreas Larsson Cc: Anton Ivanov Cc: Ard Biesheuvel Cc: Arnd Bergmann Cc: "Borislav Petkov (AMD)" Cc: Catalin Marinas Cc: Chris Mason Cc: Christian Borntraeger Cc: Dan Williams Cc: David S. Miller Cc: David Sterba Cc: Heiko Carstens Cc: Herbert Xu Cc: "H. Peter Anvin" Cc: Huacai Chen Cc: Ingo Molnar Cc: Jason A. Donenfeld Cc: Johannes Berg Cc: Li Nan Cc: Madhavan Srinivasan Cc: Magnus Lindholm Cc: Matt Turner Cc: Michael Ellerman Cc: Nicholas Piggin Cc: Palmer Dabbelt Cc: Richard Henderson Cc: Richard Weinberger Cc: Russell King Cc: Song Liu Cc: Sven Schnelle Cc: Ted Ts'o Cc: Vasily Gorbik Cc: WANG Xuerui Cc: Will Deacon Signed-off-by: Andrew Morton --- arch/arm/include/asm/xor.h | 41 ++++++++++------------------------- 1 file changed, 12 insertions(+), 29 deletions(-) --- a/arch/arm/include/asm/xor.h~arm-xor-remove-in_interrupt-handling +++ a/arch/arm/include/asm/xor.h @@ -4,7 +4,6 @@ * * Copyright (C) 2001 Russell King */ -#include #include #include #include @@ -156,13 +155,9 @@ static void xor_neon_2(unsigned long bytes, unsigned long * __restrict p1, const unsigned long * __restrict p2) { - if (in_interrupt()) { - xor_arm4regs_2(bytes, p1, p2); - } else { - kernel_neon_begin(); - xor_block_neon_inner.do_2(bytes, p1, p2); - kernel_neon_end(); - } + kernel_neon_begin(); + xor_block_neon_inner.do_2(bytes, p1, p2); + kernel_neon_end(); } static void @@ -170,13 +165,9 @@ xor_neon_3(unsigned long bytes, unsigned const unsigned long * __restrict p2, const unsigned long * __restrict p3) { - if (in_interrupt()) { - xor_arm4regs_3(bytes, p1, p2, p3); - } else { - kernel_neon_begin(); - xor_block_neon_inner.do_3(bytes, p1, p2, p3); - kernel_neon_end(); - } + kernel_neon_begin(); + xor_block_neon_inner.do_3(bytes, p1, p2, p3); + kernel_neon_end(); } static void @@ -185,13 +176,9 @@ xor_neon_4(unsigned long bytes, unsigned const unsigned long * __restrict p3, const unsigned long * __restrict p4) { - if (in_interrupt()) { - xor_arm4regs_4(bytes, p1, p2, p3, p4); - } else { - kernel_neon_begin(); - xor_block_neon_inner.do_4(bytes, p1, p2, p3, p4); - kernel_neon_end(); - } + kernel_neon_begin(); + xor_block_neon_inner.do_4(bytes, p1, p2, p3, p4); + kernel_neon_end(); } static void @@ -201,13 +188,9 @@ xor_neon_5(unsigned long bytes, unsigned const unsigned long * __restrict p4, const unsigned long * __restrict p5) { - if (in_interrupt()) { - xor_arm4regs_5(bytes, p1, p2, p3, p4, p5); - } else { - kernel_neon_begin(); - xor_block_neon_inner.do_5(bytes, p1, p2, p3, p4, p5); - kernel_neon_end(); - } + kernel_neon_begin(); + xor_block_neon_inner.do_5(bytes, p1, p2, p3, p4, p5); + kernel_neon_end(); } static struct xor_block_template xor_block_neon = { _ Patches currently in -mm which might be from hch@lst.de are xor-assert-that-xor_blocks-is-not-call-from-interrupt-context.patch arm-xor-remove-in_interrupt-handling.patch arm64-xor-fix-conflicting-attributes-for-xor_block_template.patch um-xor-cleanup-xorh.patch xor-move-to-lib-raid.patch xor-small-cleanups.patch xor-cleanup-registration-and-probing.patch xor-split-xorh.patch xor-remove-macro-abuse-for-xor-implementation-registrations.patch xor-move-generic-implementations-out-of-asm-generic-xorh.patch alpha-move-the-xor-code-to-lib-raid.patch arm-move-the-xor-code-to-lib-raid.patch arm64-move-the-xor-code-to-lib-raid.patch loongarch-move-the-xor-code-to-lib-raid.patch powerpc-move-the-xor-code-to-lib-raid.patch riscv-move-the-xor-code-to-lib-raid.patch sparc-move-the-xor-code-to-lib-raid.patch s390-move-the-xor-code-to-lib-raid.patch x86-move-the-xor-code-to-lib-raid.patch xor-avoid-indirect-calls-for-arm64-optimized-ops.patch xor-make-xorko-self-contained-in-lib-raid.patch xor-add-a-better-public-api.patch xor-add-a-better-public-api-2.patch async_xor-use-xor_gen.patch btrfs-use-xor_gen.patch xor-pass-the-entire-operation-to-the-low-level-ops.patch xor-use-static_call-for-xor_gen.patch xor-add-a-kunit-test-case.patch