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: [PATCH v3 7/9] pseries/papr-hvpipe: Kill task_struct pointer from struct hvpipe_source_info
Date: Fri, 1 May 2026 09:41:46 +0530 [thread overview]
Message-ID: <895e061e45cdc95db36fa7f27aa1922b81eed867.1777606826.git.ritesh.list@gmail.com> (raw)
In-Reply-To: <cover.1777606826.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 5aa37f6ad8c9..46159f1c1cf1 100644
--- a/arch/powerpc/platforms/pseries/papr-hvpipe.c
+++ b/arch/powerpc/platforms/pseries/papr-hvpipe.c
@@ -493,7 +493,6 @@ 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);
/*
@@ -503,8 +502,8 @@ static int papr_hvpipe_dev_create_handle(u32 srcID)
spin_lock_irqsave(&hvpipe_src_list_lock, flags);
if (hvpipe_find_source(srcID)) {
spin_unlock_irqrestore(&hvpipe_src_list_lock, flags);
- 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:[~2026-05-01 4:12 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-01 4:11 [PATCH v3 0/9] pseries/papr-hvpipe: Fix deadlock, races and misc cleanups Ritesh Harjani (IBM)
2026-05-01 4:11 ` [PATCH v3 1/9] pseries/papr-hvpipe: Fix race with interrupt handler Ritesh Harjani (IBM)
2026-05-01 4:11 ` [PATCH v3 2/9] pseries/papr-hvpipe: Prevent kernel stack memory leak to userspace Ritesh Harjani (IBM)
2026-05-01 4:11 ` [PATCH v3 3/9] pseries/papr-hvpipe: Fix null ptr deref in papr_hvpipe_dev_create_handle() Ritesh Harjani (IBM)
2026-05-01 4:11 ` [PATCH v3 4/9] pseries/papr-hvpipe: Fix & simplify error handling in papr_hvpipe_init() Ritesh Harjani (IBM)
2026-05-01 4:11 ` [PATCH v3 5/9] pseries/papr-hvpipe: Fix the usage of copy_to_user() Ritesh Harjani (IBM)
2026-05-01 4:11 ` [PATCH v3 6/9] pseries/papr-hvpipe: Simplify spin unlock usage in papr_hvpipe_handle_release() Ritesh Harjani (IBM)
2026-05-01 4:11 ` Ritesh Harjani (IBM) [this message]
2026-05-01 4:11 ` [PATCH v3 8/9] pseries/papr-hvpipe: Refactor and simplify hvpipe_rtas_recv_msg() Ritesh Harjani (IBM)
2026-05-01 4:11 ` [PATCH v3 9/9] pseries/papr-hvpipe: Fix style and checkpatch issues in enable_hvpipe_IRQ() Ritesh Harjani (IBM)
2026-05-08 7:46 ` [PATCH v3 0/9] pseries/papr-hvpipe: Fix deadlock, races and misc cleanups Aboorva Devarajan
2026-05-09 4:09 ` Aboorva Devarajan
2026-05-11 2:28 ` Madhavan Srinivasan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=895e061e45cdc95db36fa7f27aa1922b81eed867.1777606826.git.ritesh.list@gmail.com \
--to=ritesh.list@gmail.com \
--cc=chleroy@kernel.org \
--cc=haren@linux.ibm.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=maddy@linux.ibm.com \
--cc=npiggin@gmail.com \
--cc=venkat88@linux.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®