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 A5612261B6D; Tue, 25 Nov 2025 09:04:56 +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=1764061496; cv=none; b=MPm1OzltfXzw0Ib9tOf/kmQzt314GWfPyTYzrlsnOXzCA/FKnpAb+1GKhjmBzztcLUkMjtcKPZ2+mCse40XPMQdLbTyITypb8SSHswJajNpYLEuaHNjgwqk+VglfQK8WMkXB+zpVMj9yMC4JqWcaWKhhLqCeDN57juUqW9vEmdA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764061496; c=relaxed/simple; bh=uzFHDWI/HfqfGY3kbPqNmBLSABu8KT5KWQ3Wa/LOfXA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=fy68Ntb7lOiKfVZ6+6f/neDf1ZNEKgqg/oYxuFpZZ8kFxFhBcZlR9u90RPzPGDAXpCWlrTYOJ3cIl6GNpa007BZdECY7Bb530K2Bkv3lQ9NodfeuH25yK2fxqRxTnewuDB5U4B0q0JzDhE85QjUTTyA3FPLLZpDC1jmXn9O1nQo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MQ71WtGQ; 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="MQ71WtGQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A9E9BC4CEF1; Tue, 25 Nov 2025 09:04:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764061496; bh=uzFHDWI/HfqfGY3kbPqNmBLSABu8KT5KWQ3Wa/LOfXA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MQ71WtGQVwvh4pzsmWnkaFF6GatGNMcMQwZuNjVXsymYXDqGzCuZ/bMquBVhrEUk+ t7p/uojD7XS6sf7Lz0I3xAgy1t6y5PuOwepKRp70BIkkPyp7+5S1FIg4rbqJk0sNv/ 9dXY/WU3rpPpT85PmoT9koLbdA4pcYQDSIih8PFl1v+3ibVY57OrrWXhzn3kLJvj6I jRUVJJHAi8RAVlHVQmLkBwTO4kfnyD7ATM2Mn+8qBK0rOYFwYWW3neccFOy9lvH2ww phMUp0mcxsIgrB7TCDNK92H8ZiJ9LbT5hPIjlQv96zDZUcTMBW0zRoHAa5i/blFuJg fyx8solIsIGgw== From: Christian Brauner To: Mateusz Guzik Cc: Christian Brauner , viro@zeniv.linux.org.uk, jack@suse.cz, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH] fs: mark lookup_slow() as noinline Date: Tue, 25 Nov 2025 10:04:50 +0100 Message-ID: <20251125-variabel-zellstoff-67b8a698b87f@brauner> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251119144930.2911698-1-mjguzik@gmail.com> References: <20251119144930.2911698-1-mjguzik@gmail.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Developer-Signature: v=1; a=openpgp-sha256; l=1094; i=brauner@kernel.org; h=from:subject:message-id; bh=uzFHDWI/HfqfGY3kbPqNmBLSABu8KT5KWQ3Wa/LOfXA=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWSqFhpv3H2xKUeEQydcYsG0O/7aCRZ+Cw+x5n7a2cT2h /Ef36m4jlIWBjEuBlkxRRaHdpNwueU8FZuNMjVg5rAygQxh4OIUgImEH2L4Zx1855uMbZdg5iP5 lyuU2DdpzmwMWC6oarhyqY3x8tOqLYwMZy9eY5X/yvLJI2z1U8PDbTe+XVc3KJS7fZG7coPKXCN 3ZgA= X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Content-Transfer-Encoding: 8bit On Wed, 19 Nov 2025 15:49:30 +0100, Mateusz Guzik wrote: > Otherwise it gets inlined notably in walk_component(), which convinces > the compiler to push/pop additional registers in the fast path to > accomodate existence of the inlined version. > > Shortens the fast path of that routine from 87 to 71 bytes. > > > [...] Applied to the vfs-6.19.misc branch of the vfs/vfs.git tree. Patches in the vfs-6.19.misc branch should appear in linux-next soon. Please report any outstanding bugs that were missed during review in a new review to the original patch series allowing us to drop it. It's encouraged to provide Acked-bys and Reviewed-bys even though the patch has now been applied. If possible patch trailers will be updated. Note that commit hashes shown below are subject to change due to rebase, trailer updates or similar. If in doubt, please check the listed branch. tree: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git branch: vfs-6.19.misc [1/1] fs: mark lookup_slow() as noinline https://git.kernel.org/vfs/vfs/c/8d79ec9e7f63