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| author |   Ingo Molnar <mingo@kernel.org> | 2020-11-07 13:18:49 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-11-07 13:18:49 +0100 |
| commit | 0a986ea81e1aa8ac17e82cda53cc95158217956e (patch) | |
| tree | a054b0ef413b7f327c04137c5768b2da6488511d /kernel/kprobes.c | |
| parent | kprobes: Replace rp->free_instance with freelist (diff) | |
| parent | kprobes: Init kprobes in early_initcall (diff) | |
| download | linux-dev-0a986ea81e1aa8ac17e82cda53cc95158217956e.tar.xz linux-dev-0a986ea81e1aa8ac17e82cda53cc95158217956e.zip | |
Merge branch 'linus' into perf/kprobes
Merge recent kprobes updates into perf/kprobes that came from -mm.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/kprobes.c')
| -rw-r--r-- | kernel/kprobes.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 30b8fe7d571d..f7fb5d135930 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -2428,6 +2428,28 @@ static struct notifier_block kprobe_module_nb = { extern unsigned long __start_kprobe_blacklist[]; extern unsigned long __stop_kprobe_blacklist[]; +void kprobe_free_init_mem(void) +{ + void *start = (void *)(&__init_begin); + void *end = (void *)(&__init_end); + struct hlist_head *head; + struct kprobe *p; + int i; + + mutex_lock(&kprobe_mutex); + + /* Kill all kprobes on initmem */ + for (i = 0; i < KPROBE_TABLE_SIZE; i++) { + head = &kprobe_table[i]; + hlist_for_each_entry(p, head, hlist) { + if (start <= (void *)p->addr && (void *)p->addr < end) + kill_kprobe(p); + } + } + + mutex_unlock(&kprobe_mutex); +} + static int __init init_kprobes(void) { int i, err = 0; @@ -2479,7 +2501,7 @@ static int __init init_kprobes(void) init_test_probes(); return err; } -subsys_initcall(init_kprobes); +early_initcall(init_kprobes); #ifdef CONFIG_DEBUG_FS static void report_probe(struct seq_file *pi, struct kprobe *p, |