From: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
To: linuxppc-dev@lists.ozlabs.org, Haren Myneni <haren@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>,
Christophe Leroy <chleroy@kernel.org>,
Venkat Rao Bagalkote <venkat88@linux.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>,
linux-kernel@vger.kernel.org,
"Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
Subject: [RFC v1 4/6] pseries/papr-hvpipe: Kill task_struct pointer from struct hvpipe_source_info
Date: Tue, 7 Apr 2026 20:01:38 +0530 [thread overview]
Message-ID: <108d32a56d9d4630ed2ba7d8ecce9679adf8671f.1775569027.git.ritesh.list@gmail.com> (raw)
In-Reply-To: <cover.1775569027.git.ritesh.list@gmail.com>
We don't really use task_struct pointer for anything meaningful. So just
kill it for now, and we can bring back later if we need this for any
future debug purposes.
Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
---
arch/powerpc/platforms/pseries/papr-hvpipe.c | 5 ++---
arch/powerpc/platforms/pseries/papr-hvpipe.h | 1 -
2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/papr-hvpipe.c b/arch/powerpc/platforms/pseries/papr-hvpipe.c
index 57ec50e3e883..7242a14eb5ec 100644
--- a/arch/powerpc/platforms/pseries/papr-hvpipe.c
+++ b/arch/powerpc/platforms/pseries/papr-hvpipe.c
@@ -487,7 +487,6 @@ static int papr_hvpipe_dev_create_handle(u32 srcID)
return -ENOMEM;
src_info->srcID = srcID;
- src_info->tsk = current;
init_waitqueue_head(&src_info->recv_wqh);
/*
@@ -497,8 +496,8 @@ static int papr_hvpipe_dev_create_handle(u32 srcID)
spin_lock(&hvpipe_src_list_lock);
if(hvpipe_find_source(srcID)) {
spin_unlock(&hvpipe_src_list_lock);
- pr_err("pid(%d) could not get the source(%d)\n",
- src_info->tsk->pid, srcID);
+ pr_err("pid(%s:%d) could not get the source(%d)\n",
+ current->comm, task_pid_nr(current), srcID);
kfree(src_info);
return -EALREADY;
}
diff --git a/arch/powerpc/platforms/pseries/papr-hvpipe.h b/arch/powerpc/platforms/pseries/papr-hvpipe.h
index c343f4230865..4bdf7bb2fc4d 100644
--- a/arch/powerpc/platforms/pseries/papr-hvpipe.h
+++ b/arch/powerpc/platforms/pseries/papr-hvpipe.h
@@ -21,7 +21,6 @@ struct hvpipe_source_info {
u32 srcID;
u32 hvpipe_status;
wait_queue_head_t recv_wqh; /* wake up poll() waitq */
- struct task_struct *tsk;
};
/*
--
2.39.5
next prev parent reply other threads:[~2026-04-07 14:32 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-07 14:31 [RFC v1 0/6] pseries/papr-hvpipe: Fix and simplify papr-hvpipe Ritesh Harjani (IBM)
2026-04-07 14:31 ` [RFC v1 1/6] pseries/papr-hvpipe: Fix null ptr deref in papr_hvpipe_dev_create_handle Ritesh Harjani (IBM)
2026-04-09 12:52 ` Christian Brauner
2026-04-07 14:31 ` [RFC v1 2/6] pseries/papr-hvpipe: Fix the usage of copy_to_user() Ritesh Harjani (IBM)
2026-04-07 14:31 ` [RFC v1 3/6] pseries/papr-hvpipe: Simplify spin_unlock() usage in papr_hvpipe_handle_release Ritesh Harjani (IBM)
2026-04-07 14:31 ` Ritesh Harjani (IBM) [this message]
2026-04-07 14:31 ` [RFC v1 5/6] pseries/papr-hvpipe: Refactor and simplify hvpipe_rtas_recv_msg() Ritesh Harjani (IBM)
2026-04-07 14:31 ` [RFC v1 6/6] pseries/papr-hvpipe: Simplify error handling in papr_hvpipe_init() Ritesh Harjani (IBM)
2026-04-07 18:21 ` [RFC v1 0/6] pseries/papr-hvpipe: Fix and simplify papr-hvpipe Haren Myneni
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