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 48F8B19C566; Mon, 16 Feb 2026 12:30:18 +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=1771245018; cv=none; b=WnThfsGiFMa7DTo6/BDM6oHW1gHvMJEEI8NOa4BD/NzSMArTOVr0ALYPeSYeCRVaIA1tludsr7Vghz1i8k1wfi6AIUq2aQ/Ct/OFcKDRyHWHvN/UTZGLfnn+TRdBVLTZPRUXGZhqOZzOOLybT8bFiICRAkojphuF+7i8bZyBBmE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771245018; c=relaxed/simple; bh=AuWXSaDFZkr1cNAvZ2UPwfsOM4JyElxUeF7oO+a1km8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KAiugcCwOHT35PLIL7ygQk2MuCcpKYhhCg+UwmN0Qtp2bS/GTBcCkZ571jWgSj0Jf0hSWXqPeke+i0pFk6H3v07ndMocMhkJdiHarrWIoFY8WA62kbun+83d+4WZWWIpCSy2vQTYkmuFSFcruxafU3/GKI15la+ktw3g8w9d8Pk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tSLdwbr7; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="tSLdwbr7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BD65AC116C6; Mon, 16 Feb 2026 12:30:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771245017; bh=AuWXSaDFZkr1cNAvZ2UPwfsOM4JyElxUeF7oO+a1km8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tSLdwbr7aPHNJtLqr4vSJfr1xnnQi5asOsewDaZmwZm2YWDFrj2EJYdz0gqyfL5BB FbLEXN8slwxkOwGxl8JXHkLMnkLhr6hn1YDelM5RoRLJWs6Cazt3l/069wj9N6jxWY He+1EMnjPw0vd3cNEwV6UA7N2Ffl/VnLxYBCQuB2SzVPU5fwssbpGNyWe45EOTbL/7 c3eqZrKsJXLohzii3d5HiyjNRnJNcUzHocLSbzVMCfYyGzPhvN+brRJSCYTnNfSvkQ vWFDxDwrouha2TIqajLGoT0NtRYA+jxby4/Q9THSeFl314knnwjYpFa1SKDZzShrMw wo8pThRD8e6uA== From: Christian Brauner To: Linus Torvalds Cc: Christian Brauner , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [GIT PULL 13/12 for v7.0] kernel misc Date: Mon, 16 Feb 2026 13:29:20 +0100 Message-ID: <20260216-kernel-misc-v70-899e4272dc4d@brauner> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260206-vfs-v70-7df0b750d594@brauner> References: <20260206-vfs-v70-7df0b750d594@brauner> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2790; i=brauner@kernel.org; h=from:subject:message-id; bh=AuWXSaDFZkr1cNAvZ2UPwfsOM4JyElxUeF7oO+a1km8=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWRO5l1Usp3D2Wzh/eUX1IVPfE7ck2ZntNglXtb+L/O86 irBGUz7O0pZGMS4GGTFFFkc2k3C5ZbzVGw2ytSAmcPKBDKEgYtTACYSf5zhn9qy+zP1fr1c+VH7 9HE3nnjJur2P1KN9/CJWN2ofEbC7fJGRYZ7r1i3MP+d/7w9928Gz6EH83dQL3u8VTvmwCN5hcmf 6wwsA X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Content-Transfer-Encoding: 8bit Hey Linus, as announced in [1] this is one of pull requests that was delayed. /* Summary */ - pid: introduce task_ppid_vnr() helper - Revert "pid: make __task_pid_nr_ns(ns => NULL) safe for zombie callers" - ipc: Add SPDX license id to mqueue.c - pidfs: convert rb-tree to rhashtable Mateusz reported performance penalties during task creation because pidfs uses pidmap_lock to add elements into the rbtree. Switch to an rhashtable to have separate fine-grained locking and to decouple from pidmap_lock moving all heavy manipulations outside of it. Also move inode allocation outside of pidmap_lock. With this there's nothing happening for pidfs under pidmap_lock. - pid: reorder fields in pid_namespace to reduce false sharing Link: https://lore.kernel.org/20260206-vfs-v70-7df0b750d594@brauner [1] /* Testing */ gcc (Debian 14.2.0-19) 14.2.0 Debian clang version 19.1.7 (3+b1) No build failures or warnings were observed. /* Conflicts */ Merge conflicts with mainline ============================= No known conflicts. Merge conflicts with other trees ================================ The following changes since commit 6cbfdf89470ef3c2110f376a507d135e7a7a7378: posix_acl: make posix_acl_to_xattr() alloc the buffer (2026-01-16 10:51:12 +0100) are available in the Git repository at: git@gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs tags/kernel-7.0-rc1.misc for you to fetch changes up to 3673dd3c7dc1f37baf0448164d323d7c7a44d1da: Merge patch series "Revert "pid: make __task_pid_nr_ns(ns => NULL) safe for zombie callers"" (2026-02-10 11:39:31 +0100) ---------------------------------------------------------------- kernel-7.0-rc1.misc Please consider pulling these changes from the signed kernel-7.0-rc1.misc tag. Thanks! Christian ---------------------------------------------------------------- Christian Brauner (2): pidfs: convert rb-tree to rhashtable Merge patch series "Revert "pid: make __task_pid_nr_ns(ns => NULL) safe for zombie callers"" Mateusz Guzik (2): pid: reorder fields in pid_namespace to reduce false sharing pidfs: implement ino allocation without the pidmap lock Oleg Nesterov (2): Revert "pid: make __task_pid_nr_ns(ns => NULL) safe for zombie callers" pid: introduce task_ppid_vnr() helper Tim Bird (1): ipc: Add SPDX license id to mqueue.c fs/pidfs.c | 174 +++++++++++++++++++++++------------------- include/linux/pid.h | 9 ++- include/linux/pid_namespace.h | 14 ++-- include/linux/pidfs.h | 3 +- ipc/mqueue.c | 3 +- kernel/pid.c | 15 ++-- 6 files changed, 121 insertions(+), 97 deletions(-)