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| author | Thomas Gleixner <tglx@linutronix.de> | 2022-09-15 14:11:20 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-10-17 17:41:11 +0300 |
| commit | fe54d0793796ccdb213d8ea7bff0b49903b6afaa (patch) | |
| tree | a93858add4a90d2595767de3e46df9a41ecf0daf /arch/x86/include/asm/text-patching.h | |
| parent | 80e4c1cd42fff110bfdae8fce7ac4f22465f9664 (diff) | |
| download | linux-fe54d0793796ccdb213d8ea7bff0b49903b6afaa.tar.xz | |
x86/alternatives: Provide text_poke_copy_locked()
The upcoming call thunk patching must hold text_mutex and needs access to
text_poke_copy(), which takes text_mutex.
Provide a _locked postfixed variant to expose the inner workings.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220915111147.159977224@infradead.org
Diffstat (limited to 'arch/x86/include/asm/text-patching.h')
| -rw-r--r-- | arch/x86/include/asm/text-patching.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/text-patching.h b/arch/x86/include/asm/text-patching.h index 1cc15528ce29..f4b87f08f5c5 100644 --- a/arch/x86/include/asm/text-patching.h +++ b/arch/x86/include/asm/text-patching.h @@ -45,6 +45,7 @@ extern void *text_poke(void *addr, const void *opcode, size_t len); extern void text_poke_sync(void); extern void *text_poke_kgdb(void *addr, const void *opcode, size_t len); extern void *text_poke_copy(void *addr, const void *opcode, size_t len); +extern void *text_poke_copy_locked(void *addr, const void *opcode, size_t len, bool core_ok); extern void *text_poke_set(void *addr, int c, size_t len); extern int poke_int3_handler(struct pt_regs *regs); extern void text_poke_bp(void *addr, const void *opcode, size_t len, const void *emulate); |