From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: linux-kernel@vger.kernel.org
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>,
Masami Hiramatsu <mhiramat@kernel.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>,
Peter Zijlstra <peterz@infradead.org>,
Mike Rapoport <rppt@linux.ibm.com>, Jiri Olsa <jolsa@redhat.com>
Subject: [PATCH v4 5/7] arch/x86: kprobes: Use text_alloc() in alloc_insn_page()
Date: Fri, 17 Jul 2020 06:04:19 +0300 [thread overview]
Message-ID: <20200717030422.679972-6-jarkko.sakkinen@linux.intel.com> (raw)
In-Reply-To: <20200717030422.679972-1-jarkko.sakkinen@linux.intel.com>
Use text_alloc() as part of the arch specific implementation for
alloc_insn_page().
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>Im
---
arch/x86/kernel/kprobes/core.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index ada39ddbc922..0f20a3e52a06 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;
@@ -443,12 +443,6 @@ void *alloc_insn_page(void)
return page;
}
-/* Recover page to RW mode before releasing it */
-void free_insn_page(void *page)
-{
- module_memfree(page);
-}
-
static int arch_copy_kprobe(struct kprobe *p)
{
struct insn insn;
--
2.25.1
next prev parent reply other threads:[~2020-07-17 3:05 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
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 ` Jarkko Sakkinen [this message]
2020-07-23 22:16 ` [PATCH v4 5/7] arch/x86: kprobes: Use text_alloc() in alloc_insn_page() 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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