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From: Alice Ryhl <aliceryhl@google.com>
To: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Carlos Llamas" <cmllamas@google.com>,
	"Miguel Ojeda" <ojeda@kernel.org>,
	"Boqun Feng" <boqun@kernel.org>, "Gary Guo" <gary@garyguo.net>,
	"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
	"Benno Lossin" <lossin@kernel.org>,
	"Andreas Hindborg" <a.hindborg@kernel.org>,
	"Trevor Gross" <tmgross@umich.edu>,
	"Danilo Krummrich" <dakr@kernel.org>
Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org,
	 Alice Ryhl <aliceryhl@google.com>
Subject: [PATCH v2 2/4] rust: task: implement == operator for Task
Date: Fri, 27 Feb 2026 09:34:47 +0000	[thread overview]
Message-ID: <20260227-close-fd-check-current-v2-2-b3347edbb310@google.com> (raw)
In-Reply-To: <20260227-close-fd-check-current-v2-0-b3347edbb310@google.com>

It's useful to compare if two tasks are the same task or not. Rust
Binder wants this to check if a certain task is equal to the group
leader of current.

Signed-off-by: Alice Ryhl <aliceryhl@google.com>
---
 rust/kernel/task.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/rust/kernel/task.rs b/rust/kernel/task.rs
index cc907fb531bc..deb948d99921 100644
--- a/rust/kernel/task.rs
+++ b/rust/kernel/task.rs
@@ -362,6 +362,15 @@ unsafe fn dec_ref(obj: ptr::NonNull<Self>) {
     }
 }
 
+impl PartialEq for Task {
+    #[inline]
+    fn eq(&self, other: &Self) -> bool {
+        ptr::eq(self.as_ptr(), other.as_ptr())
+    }
+}
+
+impl Eq for Task {}
+
 impl Kuid {
     /// Get the current euid.
     #[inline]

-- 
2.53.0.473.g4a7958ca14-goog


  parent reply	other threads:[~2026-02-27  9:35 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-27  9:34 [PATCH v2 0/4] rust_binder: check current before closing fds Alice Ryhl
2026-02-27  9:34 ` [PATCH v2 1/4] rust: sync: implement == operator for ARef Alice Ryhl
2026-02-27 12:23   ` Gary Guo
2026-02-27  9:34 ` Alice Ryhl [this message]
2026-02-27 12:24   ` [PATCH v2 2/4] rust: task: implement == operator for Task Gary Guo
2026-02-27  9:34 ` [PATCH v2 3/4] rust_binder: make use of == " Alice Ryhl
2026-02-27 12:24   ` Gary Guo
2026-02-27  9:34 ` [PATCH v2 4/4] rust_binder: check current before closing fds Alice Ryhl
2026-02-27 12:28   ` Gary Guo
2026-02-27 13:02     ` Alice Ryhl

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