From: Catalin Marinas <catalin.marinas@arm•com>
To: Jinjie Ruan <ruanjinjie@huawei•com>
Cc: will@kernel•org, chenhuacai@kernel•org, kernel@xen0n•name,
hca@linux•ibm.com, gor@linux•ibm.com, agordeev@linux•ibm.com,
borntraeger@linux•ibm.com, svens@linux•ibm.com, oleg@redhat•com,
tglx@kernel•org, mingo@redhat•com, bp@alien8•de,
dave.hansen@linux•intel.com, hpa@zytor•com, arnd@arndb•de,
shuah@kernel•org, kevin.brodsky@arm•com, yeoreum.yun@arm•com,
anshuman.khandual@arm•com, thuth@redhat•com,
ryan.roberts@arm•com, mark.rutland@arm•com, song@kernel•org,
ziyao@disroot•org, linusw@kernel•org,
schuster.simon@siemens-energy•com, jremus@linux•ibm.com,
akpm@linux-foundation•org, mathieu.desnoyers@efficios•com,
kmal@cock•li, dvyukov@google•com, reddybalavignesh9979@gmail•com,
x86@kernel•org, linux-arm-kernel@lists•infradead.org,
linux-kernel@vger•kernel.org, loongarch@lists•linux.dev,
linux-s390@vger•kernel.org, linux-arch@vger•kernel.org,
linux-kselftest@vger•kernel.org
Subject: Re: [PATCH v14 3/4] arm64: Use generic TIF bits for common thread flags
Date: Wed, 1 Apr 2026 11:55:20 +0100 [thread overview]
Message-ID: <acz5mOrm6_E1UBwV@arm.com> (raw)
In-Reply-To: <20260320104222.1381274-4-ruanjinjie@huawei.com>
On Fri, Mar 20, 2026 at 06:42:21PM +0800, Jinjie Ruan wrote:
> Use the generic TIF bits defined in <asm-generic/thread_info_tif.h> for
> standard thread flags (TIF_SIGPENDING, TIF_NEED_RESCHED, TIF_NOTIFY_RESUME,
> TIF_RESTORE_SIGMASK, TIF_SINGLESTEP, etc.) instead of defining
> them locally.
>
> Arm64-specific bits (TIF_FOREIGN_FPSTATE, TIF_MTE_ASYNC_FAULT, TIF_SVE,
> TIF_SSBD, etc.) are renumbered to start at bit 16 to avoid conflicts.
>
> This enables RSEQ optimizations which require CONFIG_HAVE_GENERIC_TIF_BITS
> combined with the generic entry infrastructure (already used by arm64).
>
> By the way, remove TIF_FREEZE because this flag became unused since
> commit d88e4cb67197 ("freezer: remove now unused TIF_FREEZE").
>
> Cc: Thomas Gleixner <tglx@kernel•org>
> Reviewed-by: Kevin Brodsky <kevin.brodsky@arm•com>
> Reviewed-by: Linus Walleij <linusw@kernel•org>
> Reviewed-by: Yeoreum Yun <yeoreum.yun@arm•com>
> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei•com>
Acked-by: Catalin Marinas <catalin.marinas@arm•com>
Given that it's touching multiple trees, I guess it's a series for
Andrew?
--
Catalin
next prev parent reply other threads:[~2026-04-01 10:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-20 10:42 [PATCH v14 0/4] arm64: Use generic TIF bits for common thread flags Jinjie Ruan
2026-03-20 10:42 ` [PATCH v14 1/4] s390: Rename TIF_SINGLE_STEP to TIF_SINGLESTEP Jinjie Ruan
2026-03-20 10:42 ` [PATCH v14 2/4] asm-generic: Move TIF_SINGLESTEP to generic TIF bits Jinjie Ruan
2026-04-09 7:42 ` Mark Rutland
2026-04-10 3:39 ` Jinjie Ruan
2026-03-20 10:42 ` [PATCH v14 3/4] arm64: Use generic TIF bits for common thread flags Jinjie Ruan
2026-04-01 10:55 ` Catalin Marinas [this message]
2026-04-02 1:41 ` Jinjie Ruan
2026-03-20 10:42 ` [PATCH v14 4/4] selftests: sud_test: Support aarch64 Jinjie Ruan
2026-03-20 13:40 ` Linus Walleij
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=acz5mOrm6_E1UBwV@arm.com \
--to=catalin.marinas@arm$(echo .)com \
--cc=agordeev@linux$(echo .)ibm.com \
--cc=akpm@linux-foundation$(echo .)org \
--cc=anshuman.khandual@arm$(echo .)com \
--cc=arnd@arndb$(echo .)de \
--cc=borntraeger@linux$(echo .)ibm.com \
--cc=bp@alien8$(echo .)de \
--cc=chenhuacai@kernel$(echo .)org \
--cc=dave.hansen@linux$(echo .)intel.com \
--cc=dvyukov@google$(echo .)com \
--cc=gor@linux$(echo .)ibm.com \
--cc=hca@linux$(echo .)ibm.com \
--cc=hpa@zytor$(echo .)com \
--cc=jremus@linux$(echo .)ibm.com \
--cc=kernel@xen0n$(echo .)name \
--cc=kevin.brodsky@arm$(echo .)com \
--cc=kmal@cock$(echo .)li \
--cc=linusw@kernel$(echo .)org \
--cc=linux-arch@vger$(echo .)kernel.org \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=linux-kselftest@vger$(echo .)kernel.org \
--cc=linux-s390@vger$(echo .)kernel.org \
--cc=loongarch@lists$(echo .)linux.dev \
--cc=mark.rutland@arm$(echo .)com \
--cc=mathieu.desnoyers@efficios$(echo .)com \
--cc=mingo@redhat$(echo .)com \
--cc=oleg@redhat$(echo .)com \
--cc=reddybalavignesh9979@gmail$(echo .)com \
--cc=ruanjinjie@huawei$(echo .)com \
--cc=ryan.roberts@arm$(echo .)com \
--cc=schuster.simon@siemens-energy$(echo .)com \
--cc=shuah@kernel$(echo .)org \
--cc=song@kernel$(echo .)org \
--cc=svens@linux$(echo .)ibm.com \
--cc=tglx@kernel$(echo .)org \
--cc=thuth@redhat$(echo .)com \
--cc=will@kernel$(echo .)org \
--cc=x86@kernel$(echo .)org \
--cc=yeoreum.yun@arm$(echo .)com \
--cc=ziyao@disroot$(echo .)org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
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