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From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Masami Hiramatsu <mhiramat@kernel.org>
Cc: linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	"open list:MEMORY MANAGEMENT" <linux-mm@kvack.org>
Subject: Re: [PATCH v4 3/7] vmalloc: Add text_alloc() and text_free()
Date: Fri, 24 Jul 2020 01:24:55 +0300	[thread overview]
Message-ID: <20200723222455.GB12405@linux.intel.com> (raw)
In-Reply-To: <20200717175245.54758e3954abd1bcccfe5500@kernel.org>

On Fri, Jul 17, 2020 at 05:52:45PM +0900, Masami Hiramatsu wrote:
> On Fri, 17 Jul 2020 06:04:17 +0300
> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> 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. Provide default/fallback implementation
> > wrapping module_alloc() and module_memfree().
> 
> Doesn't it depend on CONFIG_MODULE?

The idea would be that arch specifically promotes that it has text
allocator that is not dependent on module subsystem.

E.g. like the patch set does for x86.

/Jarkko

  reply	other threads:[~2020-07-23 22:25 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-17  3:04 [PATCH v4 0/7] arch/x86: kprobes: Remove MODULES dependency Jarkko Sakkinen
2020-07-17  3:04 ` [PATCH v4 1/7] module: Add lock_modules() and unlock_modules() Jarkko Sakkinen
2020-07-17  3:04 ` [PATCH v4 2/7] kprobes: Use " Jarkko Sakkinen
2020-07-17  3:04 ` [PATCH v4 3/7] vmalloc: Add text_alloc() and text_free() Jarkko Sakkinen
2020-07-17  5:33   ` kernel test robot
2020-07-17  5:33   ` kernel test robot
2020-07-17  8:52   ` Masami Hiramatsu
2020-07-23 22:24     ` Jarkko Sakkinen [this message]
2020-07-18 16:23   ` Mike Rapoport
2020-07-20 12:01     ` Masami Hiramatsu
2020-07-23 22:28     ` Jarkko Sakkinen
2020-07-24 10:13       ` Mike Rapoport
2020-07-24 23:31         ` Jarkko Sakkinen
2020-07-24 23:40           ` Jarkko Sakkinen
2020-07-17  3:04 ` [PATCH v4 4/7] arch/x86: Implement " Jarkko Sakkinen
2020-07-17  3:04 ` [PATCH v4 5/7] arch/x86: kprobes: Use text_alloc() in alloc_insn_page() Jarkko Sakkinen
2020-07-23 22:16   ` Jarkko Sakkinen
2020-07-17  3:04 ` [PATCH v4 6/7] kprobes: Use text_alloc() and text_free() Jarkko Sakkinen
2020-07-17  3:04 ` [PATCH v4 7/7] kprobes: Flag out CONFIG_MODULES dependent code Jarkko Sakkinen

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