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From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Andi Kleen <ak@linux.intel.com>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH v5 2/6] vmalloc: Add text_alloc() and text_free()
Date: Sat, 25 Jul 2020 05:20:00 +0300	[thread overview]
Message-ID: <20200725022000.GB17052@linux.intel.com> (raw)
In-Reply-To: <20200724102243.GA2831654@kernel.org>

On Fri, Jul 24, 2020 at 01:22:43PM +0300, Mike Rapoport wrote:
> On Fri, Jul 24, 2020 at 08:05:49AM +0300, Jarkko Sakkinen wrote:
> > Introduce functions for allocating memory for dynamic trampolines, such
> > as kprobes. An arch can promote the availability of these functions with
> > CONFIG_ARCH_HAS_TEXT_ALLOC.
> 
> As it was pointed out at the discussion on the previous version [1],
> text_alloc() alone won't necessarily suit other architectures.
>  
> I don't see a point in defining a "generic" interface that apriory could
> not be imeplemented by several architectures.
> 
> [1] https://lore.kernel.org/lkml/20200714094625.1443261-1-jarkko.sakkinen@linux.intel.com/

These changes do actually acknowledge the feedback [1][2][3]. They do not
interfere with module_alloc() and are fully optional.

[1] https://lore.kernel.org/linux-riscv/20200714102826.GB4756@willie-the-truck/
[2] https://lore.kernel.org/linux-riscv/20200714164245.GE1551@shell.armlinux.org.uk/
[3] https://lore.kernel.org/linux-riscv/20200714135651.GA27819@linux-8ccs/

/Jarkko

  reply	other threads:[~2020-07-25  2:21 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-24  5:05 [PATCH v5 0/6] arch/x86: kprobes: Remove MODULES dependency Jarkko Sakkinen
2020-07-24  5:05 ` [PATCH v5 1/6] kprobes: Remove dependency to the module_mutex Jarkko Sakkinen
2020-07-24  9:13   ` Ingo Molnar
2020-07-25  2:36     ` Jarkko Sakkinen
2020-07-24  9:17   ` Ingo Molnar
2020-07-25  3:01     ` Jarkko Sakkinen
2020-07-25 10:21       ` Ingo Molnar
2020-07-28  7:34         ` Masami Hiramatsu
2020-07-28 12:29           ` [tip: perf/core] kprobes: Remove unnecessary module_mutex locking from kprobe_optimizer() tip-bot2 for Masami Hiramatsu
2020-08-17 21:22           ` [PATCH v5 1/6] kprobes: Remove dependency to the module_mutex Jarkko Sakkinen
2020-07-24 10:22   ` Mike Rapoport
2020-07-25  2:42     ` Jarkko Sakkinen
2020-07-24 14:46   ` Masami Hiramatsu
2020-07-25  2:48     ` Jarkko Sakkinen
2020-07-24  5:05 ` [PATCH v5 2/6] vmalloc: Add text_alloc() and text_free() Jarkko Sakkinen
2020-07-24 10:22   ` Mike Rapoport
2020-07-25  2:20     ` Jarkko Sakkinen [this message]
2020-07-24  5:05 ` [PATCH v5 3/6] arch/x86: Implement " Jarkko Sakkinen
2020-07-24  9:22   ` Ingo Molnar
2020-07-25  2:03     ` Jarkko Sakkinen
2020-07-24  5:05 ` [PATCH v5 4/6] arch/x86: kprobes: Use " Jarkko Sakkinen
2020-07-24  5:05 ` [PATCH v5 5/6] " Jarkko Sakkinen
2020-07-24  9:27   ` Ingo Molnar
2020-07-24 12:16     ` Ard Biesheuvel
2020-07-24 12:16       ` Ard Biesheuvel
2020-07-25  3:19       ` [PATCH v5 5/6] kprobes: Use text_alloc() and text_free()] Jarkko Sakkinen
2020-07-25  3:16     ` [PATCH v5 5/6] kprobes: Use text_alloc() and text_free() Jarkko Sakkinen
2020-07-26  8:14       ` Mike Rapoport
2020-07-26 16:06         ` Ard Biesheuvel
2020-07-26 16:06           ` Ard Biesheuvel
2020-07-28  8:17           ` Masami Hiramatsu
2020-07-28 10:56             ` Ard Biesheuvel
2020-07-28 10:56               ` Ard Biesheuvel
2020-07-28 13:35               ` Masami Hiramatsu
2020-07-28 17:51                 ` Ard Biesheuvel
2020-07-28 17:51                   ` Ard Biesheuvel
2020-07-29  1:50                   ` Masami Hiramatsu
2020-07-29  6:13                     ` Ard Biesheuvel
2020-07-29  6:13                       ` Ard Biesheuvel
2020-07-30  1:09                       ` Masami Hiramatsu
2020-08-18  5:30         ` Jarkko Sakkinen
2020-08-18 11:51           ` Mike Rapoport
2020-08-18 16:30             ` Jarkko Sakkinen
2020-08-19  6:47               ` Mike Rapoport
2020-08-19 21:07                 ` Jarkko Sakkinen
2020-07-24 10:27   ` Mike Rapoport
2020-07-24 14:57     ` Masami Hiramatsu
2020-07-24 23:38     ` Jarkko Sakkinen
2020-07-24  5:05 ` [PATCH v5 6/6] kprobes: Remove CONFIG_MODULES dependency Jarkko Sakkinen
2020-07-24  7:01 ` [PATCH v5 0/6] arch/x86: kprobes: Remove MODULES dependency Jarkko Sakkinen
2020-07-24 10:26 ` Mike Rapoport
  -- strict thread matches above, loose matches on Subject: below --
2020-07-24  5:04 Jarkko Sakkinen
2020-07-24  5:04 ` [PATCH v5 2/6] vmalloc: Add text_alloc() and text_free() Jarkko Sakkinen

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