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From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: linux-kernel@vger.kernel.org
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
	linux-mm@kvack.org, Andi Kleen <ak@linux.intel.com>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	x86@kernel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)),
	"H. Peter Anvin" <hpa@zytor.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	"Steven Rostedt (VMware)" <rostedt@goodmis.org>,
	Mike Rapoport <rppt@linux.ibm.com>, Jiri Olsa <jolsa@redhat.com>
Subject: [PATCH v5 4/6] arch/x86: kprobes: Use text_alloc() and text_free()
Date: Fri, 24 Jul 2020 08:05:51 +0300	[thread overview]
Message-ID: <20200724050553.1724168-5-jarkko.sakkinen@linux.intel.com> (raw)
In-Reply-To: <20200724050553.1724168-1-jarkko.sakkinen@linux.intel.com>

Use text_alloc() and text_free() to implement alloc_insn_page() and
free_insn_page().

Cc: linux-mm@kvack.org
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>Im
---
 arch/x86/kernel/kprobes/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index ada39ddbc922..9e57452b3a51 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -423,7 +423,7 @@ void *alloc_insn_page(void)
 {
 	void *page;
 
-	page = module_alloc(PAGE_SIZE);
+	page = text_alloc(PAGE_SIZE);
 	if (!page)
 		return NULL;
 
@@ -446,7 +446,7 @@ void *alloc_insn_page(void)
 /* Recover page to RW mode before releasing it */
 void free_insn_page(void *page)
 {
-	module_memfree(page);
+	text_free(page);
 }
 
 static int arch_copy_kprobe(struct kprobe *p)
-- 
2.25.1


  parent reply	other threads:[~2020-07-24  5:06 UTC|newest]

Thread overview: 46+ 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
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 ` Jarkko Sakkinen [this message]
2020-07-24  5:05 ` [PATCH v5 5/6] kprobes: Use " Jarkko Sakkinen
2020-07-24  9:27   ` Ingo Molnar
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
2020-07-28  8:17           ` Masami Hiramatsu
2020-07-28 10:56             ` Ard Biesheuvel
2020-07-28 13:35               ` Masami Hiramatsu
2020-07-28 17:51                 ` Ard Biesheuvel
2020-07-29  1:50                   ` Masami Hiramatsu
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

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