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Thu, 30 Apr 2026 21:12:40 -0700 (PDT) From: "Ritesh Harjani (IBM)" To: linuxppc-dev@lists.ozlabs.org, Haren Myneni Cc: Madhavan Srinivasan , Christophe Leroy , Venkat Rao Bagalkote , Nicholas Piggin , linux-kernel@vger.kernel.org, "Ritesh Harjani (IBM)" Subject: [PATCH v3 6/9] pseries/papr-hvpipe: Simplify spin unlock usage in papr_hvpipe_handle_release() Date: Fri, 1 May 2026 09:41:45 +0530 Message-ID: <4a980331557af3d10aada8576aaa16cddc691c65.1777606826.git.ritesh.list@gmail.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Once the src_info is removed from the global list, no one can access it. This simplies the usage of spin_unlock_irqrestore() in papr_hvpipe_handle_release() Signed-off-by: Ritesh Harjani (IBM) --- arch/powerpc/platforms/pseries/papr-hvpipe.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/platforms/pseries/papr-hvpipe.c b/arch/powerpc/platforms/pseries/papr-hvpipe.c index c007560d2d8c..5aa37f6ad8c9 100644 --- a/arch/powerpc/platforms/pseries/papr-hvpipe.c +++ b/arch/powerpc/platforms/pseries/papr-hvpipe.c @@ -460,6 +460,7 @@ static int papr_hvpipe_handle_release(struct inode *inode, src_info = file->private_data; list_del(&src_info->list); file->private_data = NULL; + spin_unlock_irqrestore(&hvpipe_src_list_lock, flags); /* * If the pipe for this specific source has any pending * payload, issue recv HVPIPE RTAS so that pipe will not @@ -467,10 +468,8 @@ static int papr_hvpipe_handle_release(struct inode *inode, */ if (src_info->hvpipe_status & HVPIPE_MSG_AVAILABLE) { src_info->hvpipe_status = 0; - spin_unlock_irqrestore(&hvpipe_src_list_lock, flags); hvpipe_rtas_recv_msg(NULL, 0); - } else - spin_unlock_irqrestore(&hvpipe_src_list_lock, flags); + } kfree(src_info); return 0; -- 2.39.5