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Tue, 07 Apr 2026 07:32:08 -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: [RFC v1 3/6] pseries/papr-hvpipe: Simplify spin_unlock() usage in papr_hvpipe_handle_release Date: Tue, 7 Apr 2026 20:01:37 +0530 Message-ID: <4217692a276ccae03f764f746e3607757277cbda.1775569027.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() 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 fffebbae113c..57ec50e3e883 100644 --- a/arch/powerpc/platforms/pseries/papr-hvpipe.c +++ b/arch/powerpc/platforms/pseries/papr-hvpipe.c @@ -455,6 +455,7 @@ 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(&hvpipe_src_list_lock); /* * If the pipe for this specific source has any pending * payload, issue recv HVPIPE RTAS so that pipe will not @@ -462,10 +463,8 @@ static int papr_hvpipe_handle_release(struct inode *inode, */ if (src_info->hvpipe_status & HVPIPE_MSG_AVAILABLE) { src_info->hvpipe_status = 0; - spin_unlock(&hvpipe_src_list_lock); hvpipe_rtas_recv_msg(NULL, 0); - } else - spin_unlock(&hvpipe_src_list_lock); + } kfree(src_info); return 0; -- 2.39.5