diff options
| -rw-r--r-- | arch/powerpc/kernel/kprobes.c | 6 | ||||
| -rw-r--r-- | arch/x86_64/kernel/kprobes.c | 6 | ||||
| -rw-r--r-- | include/asm-i386/kprobes.h | 2 | ||||
| -rw-r--r-- | include/asm-ia64/kprobes.h | 2 | ||||
| -rw-r--r-- | include/asm-powerpc/kprobes.h | 3 | ||||
| -rw-r--r-- | include/asm-sparc64/kprobes.h | 2 | ||||
| -rw-r--r-- | include/asm-x86_64/kprobes.h | 3 | ||||
| -rw-r--r-- | include/linux/kprobes.h | 1 | ||||
| -rw-r--r-- | kernel/kprobes.c | 4 |
9 files changed, 16 insertions, 13 deletions
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index 93444e32fccd..27b0c40601fb 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -80,11 +80,11 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p) (unsigned long) p->addr + sizeof(kprobe_opcode_t)); } -void __kprobes arch_remove_kprobe(struct kprobe *p, struct semaphore *s) +void __kprobes arch_remove_kprobe(struct kprobe *p) { - down(s); + down(&kprobe_mutex); free_insn_slot(p->ainsn.insn); - up(s); + up(&kprobe_mutex); } static inline void prepare_singlestep(struct kprobe *p, struct pt_regs *regs) diff --git a/arch/x86_64/kernel/kprobes.c b/arch/x86_64/kernel/kprobes.c index 61a6a9369cbd..b7dc1f816d13 100644 --- a/arch/x86_64/kernel/kprobes.c +++ b/arch/x86_64/kernel/kprobes.c @@ -220,11 +220,11 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p) (unsigned long) p->addr + sizeof(kprobe_opcode_t)); } -void __kprobes arch_remove_kprobe(struct kprobe *p, struct semaphore *s) +void __kprobes arch_remove_kprobe(struct kprobe *p) { - down(s); + down(&kprobe_mutex); free_insn_slot(p->ainsn.insn); - up(s); + up(&kprobe_mutex); } static inline void save_previous_kprobe(struct kprobe_ctlblk *kcb) diff --git a/include/asm-i386/kprobes.h b/include/asm-i386/kprobes.h index dc559267ce3e..27cac050a60e 100644 --- a/include/asm-i386/kprobes.h +++ b/include/asm-i386/kprobes.h @@ -40,7 +40,7 @@ typedef u8 kprobe_opcode_t; #define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry #define ARCH_SUPPORTS_KRETPROBES -#define arch_remove_kprobe(p, s) do { } while(0) +#define arch_remove_kprobe(p) do {} while (0) void kretprobe_trampoline(void); diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h index 698508f4a0cf..a74b68104559 100644 --- a/include/asm-ia64/kprobes.h +++ b/include/asm-ia64/kprobes.h @@ -89,7 +89,7 @@ struct kprobe_ctlblk { #define IP_RELATIVE_PREDICT_OPCODE (7) #define LONG_BRANCH_OPCODE (0xC) #define LONG_CALL_OPCODE (0xD) -#define arch_remove_kprobe(p, s) do { } while(0) +#define arch_remove_kprobe(p) do {} while (0) typedef struct kprobe_opcode { bundle_t bundle; diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h index 89dee13c2a4c..f466bc804f41 100644 --- a/include/asm-powerpc/kprobes.h +++ b/include/asm-powerpc/kprobes.h @@ -33,6 +33,7 @@ #define __ARCH_WANT_KPROBES_INSN_SLOT struct pt_regs; +struct kprobe; typedef unsigned int kprobe_opcode_t; #define BREAKPOINT_INSTRUCTION 0x7fe00008 /* trap */ @@ -50,7 +51,7 @@ typedef unsigned int kprobe_opcode_t; #define ARCH_SUPPORTS_KRETPROBES void kretprobe_trampoline(void); -extern void arch_remove_kprobe(struct kprobe *p, struct semaphore *s); +extern void arch_remove_kprobe(struct kprobe *p); /* Architecture specific copy of original instruction */ struct arch_specific_insn { diff --git a/include/asm-sparc64/kprobes.h b/include/asm-sparc64/kprobes.h index 27fbdcba724b..e4efe652b54b 100644 --- a/include/asm-sparc64/kprobes.h +++ b/include/asm-sparc64/kprobes.h @@ -12,7 +12,7 @@ typedef u32 kprobe_opcode_t; #define MAX_INSN_SIZE 2 #define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry -#define arch_remove_kprobe(p, s) do { } while(0) +#define arch_remove_kprobe(p) do {} while (0) /* Architecture specific copy of original instruction*/ struct arch_specific_insn { diff --git a/include/asm-x86_64/kprobes.h b/include/asm-x86_64/kprobes.h index 3a19ad179220..98a1e95ddb98 100644 --- a/include/asm-x86_64/kprobes.h +++ b/include/asm-x86_64/kprobes.h @@ -30,6 +30,7 @@ #define __ARCH_WANT_KPROBES_INSN_SLOT struct pt_regs; +struct kprobe; typedef u8 kprobe_opcode_t; #define BREAKPOINT_INSTRUCTION 0xcc @@ -44,6 +45,7 @@ typedef u8 kprobe_opcode_t; #define ARCH_SUPPORTS_KRETPROBES void kretprobe_trampoline(void); +extern void arch_remove_kprobe(struct kprobe *p); /* Architecture specific copy of original instruction*/ struct arch_specific_insn { @@ -78,7 +80,6 @@ static inline void restore_interrupts(struct pt_regs *regs) local_irq_enable(); } -extern void arch_remove_kprobe(struct kprobe *p, struct semaphore *s); extern int post_kprobe_handler(struct pt_regs *regs); extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); extern int kprobe_handler(struct pt_regs *regs); diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 59bf240cdb9d..10005bc92a31 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -149,6 +149,7 @@ struct kretprobe_instance { }; extern spinlock_t kretprobe_lock; +extern struct semaphore kprobe_mutex; extern int arch_prepare_kprobe(struct kprobe *p); extern void arch_arm_kprobe(struct kprobe *p); extern void arch_disarm_kprobe(struct kprobe *p); diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 19c42cbf91a0..f24cbab558f1 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -48,7 +48,7 @@ static struct hlist_head kprobe_table[KPROBE_TABLE_SIZE]; static struct hlist_head kretprobe_inst_table[KPROBE_TABLE_SIZE]; -static DECLARE_MUTEX(kprobe_mutex); /* Protects kprobe_table */ +DECLARE_MUTEX(kprobe_mutex); /* Protects kprobe_table */ DEFINE_SPINLOCK(kretprobe_lock); /* Protects kretprobe_inst_table */ static DEFINE_PER_CPU(struct kprobe *, kprobe_instance) = NULL; @@ -532,7 +532,7 @@ valid_p: list_del_rcu(&p->list); kfree(old_p); } - arch_remove_kprobe(p, &kprobe_mutex); + arch_remove_kprobe(p); } } |