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From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: "Linus Torvalds" <torvalds@linux-foundation.org>,
	"Mathieu Desnoyers" <mathieu.desnoyers@efficios.com>,
	"Alexander Viro" <viro@zeniv.linux.org.uk>,
	"Christian Brauner" <brauner@kernel.org>,
	"Jan Kara" <jack@suse.cz>,
	linux-fsdevel@vger.kernel.org,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Darren Hart" <dvhart@infradead.org>,
	"Davidlohr Bueso" <dave@stgolabs.net>,
	"André Almeida" <andrealmeid@igalia.com>,
	x86@kernel.org
Subject: [patch 4/4] select: Use user_read_masked_begin()
Date: Wed, 13 Aug 2025 17:57:09 +0200 (CEST)	[thread overview]
Message-ID: <20250813151939.792908766@linutronix.de> (raw)
In-Reply-To: 20250813150610.521355442@linutronix.de

Replace the can_do_masked_user_access()	conditional with the generic macro.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: linux-fsdevel@vger.kernel.org
---
 fs/select.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/fs/select.c
+++ b/fs/select.c
@@ -776,9 +776,7 @@ static inline int get_sigset_argpack(str
 {
 	// the path is hot enough for overhead of copy_from_user() to matter
 	if (from) {
-		if (can_do_masked_user_access())
-			from = masked_user_access_begin(from);
-		else if (!user_read_access_begin(from, sizeof(*from)))
+		if (!user_read_masked_begin(from))
 			return -EFAULT;
 		unsafe_get_user(to->p, &from->p, Efault);
 		unsafe_get_user(to->size, &from->size, Efault);


  parent reply	other threads:[~2025-08-13 16:06 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-13 15:57 [patch 0/4] uaccess: Provide and use helpers for user masked access Thomas Gleixner
2025-08-13 15:57 ` [patch 1/4] uaccess: Provide common helpers for masked user access Thomas Gleixner
2025-08-26  7:04   ` Christophe Leroy
2025-08-13 15:57 ` [patch 2/4] futex: Convert to get/put_user_masked_u32() Thomas Gleixner
2025-08-13 15:57 ` [patch 3/4] x86/futex: Use user_*_masked_begin() Thomas Gleixner
2025-08-26  7:09   ` Christophe Leroy
2025-08-13 15:57 ` Thomas Gleixner [this message]
2025-08-17 13:49 ` [patch 0/4] uaccess: Provide and use helpers for user masked access David Laight
2025-08-17 14:00   ` Linus Torvalds
2025-08-17 15:29     ` David Laight
2025-08-17 15:36       ` Linus Torvalds
2025-08-18 11:59         ` David Laight
2025-08-18 21:21   ` David Laight
2025-08-18 21:36     ` Linus Torvalds
2025-08-18 22:21       ` Al Viro
2025-08-18 23:00         ` Linus Torvalds
2025-08-19  0:39           ` Al Viro
2025-08-20 23:48             ` Al Viro
2025-08-21  7:45               ` Christian Brauner
2025-08-21 22:49                 ` Al Viro
2025-08-19  2:39       ` Matthew Wilcox
2025-08-19 21:33       ` David Laight
2025-08-19  4:44     ` Thomas Weißschuh

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