From: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: lkml <linux-kernel@vger.kernel.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Andy Lutomirski <luto@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
Borislav Petkov <bp@alien8.de>,
Catalin Marinas <catalin.marinas@arm.com>,
Christopher Lameter <cl@linux.com>,
Dan Williams <dan.j.williams@intel.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Elena Reshetova <elena.reshetova@intel.com>,
"H. Peter Anvin" <hpa@zytor.com>, Idan Yaniv <idan.yaniv@ibm.com>,
Ingo Molnar <mingo@redhat.com>,
James Bottomley <jejb@linux.ibm.com>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Matthew Wilcox <willy@infradead.org>,
Mike Rapoport <rppt@linux.ibm.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Tycho Andersen <tycho@tycho.ws>, Will Deacon <will@kernel.org>,
Linux API <linux-api@vger.kernel.org>,
linux-arch <linux-arch@vger.kernel.org>,
linux-arm-kernel@lists.infradead.org,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>,
linux-nvdimm@lists.01.org, linux-riscv@lists.infradead.org,
"maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)"
<x86@kernel.org>
Subject: Re: [PATCH 3/6] mm: introduce secretmemfd system call to create "secret" memory areas
Date: Tue, 21 Jul 2020 12:59:22 +0200 [thread overview]
Message-ID: <CAKgNAkgdOZXsVVkYveqnjODOr_cHYWiRssw2Tu1dZEBd+GnOnA@mail.gmail.com> (raw)
In-Reply-To: <20200720092435.17469-4-rppt@kernel.org>
Hi Mike,
On Mon, 20 Jul 2020 at 11:26, Mike Rapoport <rppt@kernel.org> wrote:
>
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> Introduce "secretmemfd" system call with the ability to create memory areas
> visible only in the context of the owning process and not mapped not only
> to other processes but in the kernel page tables as well.
>
> The user will create a file descriptor using the secretmemfd system call
Without wanting to start a bikeshed discussion, the more common
convention in recently added system calls is to use an underscore in
names that consist of multiple clearly distinct words. See many
examples in https://man7.org/linux/man-pages/man2/syscalls.2.html.
Thus, I'd suggest at least secret_memfd().
Also, I wonder whether memfd_secret() might not be even better.
There's plenty of precedent for the naming style where related APIs
share a common prefix [1].
Thanks,
Michael
[1] Some examples:
epoll_create(2)
epoll_create1(2)
epoll_ctl(2)
epoll_pwait(2)
epoll_wait(2)
mq_getsetattr(2)
mq_notify(2)
mq_open(2)
mq_timedreceive(2)
mq_timedsend(2)
mq_unlink(2)
sched_get_affinity(2)
sched_get_priority_max(2)
sched_get_priority_min(2)
sched_getaffinity(2)
sched_getattr(2)
sched_getparam(2)
sched_getscheduler(2)
sched_rr_get_interval(2)
sched_set_affinity(2)
sched_setaffinity(2)
sched_setattr(2)
sched_setparam(2)
sched_setscheduler(2)
sched_yield(2)
timer_create(2)
timer_delete(2)
timer_getoverrun(2)
timer_gettime(2)
timer_settime(2)
timerfd_create(2)
timerfd_gettime(2)
timerfd_settime(2)
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
next prev parent reply other threads:[~2020-07-21 10:59 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-20 9:24 [PATCH 0/6] mm: introduce secretmemfd system call to create "secret" memory areas Mike Rapoport
2020-07-20 9:24 ` [PATCH 1/6] mm: add definition of PMD_PAGE_ORDER Mike Rapoport
2020-07-20 9:24 ` [PATCH 2/6] mmap: make mlock_future_check() global Mike Rapoport
2020-07-20 9:24 ` [PATCH 3/6] mm: introduce secretmemfd system call to create "secret" memory areas Mike Rapoport
2020-07-20 11:30 ` Arnd Bergmann
2020-07-20 14:20 ` Mike Rapoport
2020-07-20 14:34 ` Arnd Bergmann
2020-07-20 17:46 ` Mike Rapoport
2020-07-20 15:51 ` James Bottomley
2020-07-20 18:08 ` Arnd Bergmann
2020-07-20 19:16 ` James Bottomley
2020-07-20 20:05 ` Arnd Bergmann
2020-07-21 10:59 ` Michael Kerrisk (man-pages) [this message]
2020-07-20 9:24 ` [PATCH 4/6] arch, mm: wire up secretmemfd system call were relevant Mike Rapoport
2020-07-26 17:44 ` Palmer Dabbelt
2020-07-20 9:24 ` [PATCH 5/6] mm: secretmem: use PMD-size pages to amortize direct map fragmentation Mike Rapoport
2020-07-20 9:24 ` [PATCH 6/6] mm: secretmem: add ability to reserve memory at boot Mike Rapoport
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