diff options
author | Masami Hiramatsu <mhiramat@redhat.com> | 2010-04-27 18:33:12 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2010-05-08 12:08:30 -0400 |
commit | c0614829c16ab9d31f1b7d40516decfbf3d32102 (patch) | |
tree | 3787f73258a8cc02b6608849c37bff71ce3a3272 /kernel/kprobes.c | |
parent | c7993165ef0c1d636ca05f4787739f8414584e6d (diff) |
kprobes: Move enable/disable_kprobe() out from debugfs code
Move enable/disable_kprobe() API out from debugfs related code,
because these interfaces are not related to debugfs interface.
This fixes a compiler warning.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <20100427223312.2322.60512.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/kprobes.c')
-rw-r--r-- | kernel/kprobes.c | 132 |
1 files changed, 66 insertions, 66 deletions
diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 0ed46f3e51e9..282035f3ae96 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c | |||
@@ -1588,6 +1588,72 @@ static void __kprobes kill_kprobe(struct kprobe *p) | |||
1588 | arch_remove_kprobe(p); | 1588 | arch_remove_kprobe(p); |
1589 | } | 1589 | } |
1590 | 1590 | ||
1591 | /* Disable one kprobe */ | ||
1592 | int __kprobes disable_kprobe(struct kprobe *kp) | ||
1593 | { | ||
1594 | int ret = 0; | ||
1595 | struct kprobe *p; | ||
1596 | |||
1597 | mutex_lock(&kprobe_mutex); | ||
1598 | |||
1599 | /* Check whether specified probe is valid. */ | ||
1600 | p = __get_valid_kprobe(kp); | ||
1601 | if (unlikely(p == NULL)) { | ||
1602 | ret = -EINVAL; | ||
1603 | goto out; | ||
1604 | } | ||
1605 | |||
1606 | /* If the probe is already disabled (or gone), just return */ | ||
1607 | if (kprobe_disabled(kp)) | ||
1608 | goto out; | ||
1609 | |||
1610 | kp->flags |= KPROBE_FLAG_DISABLED; | ||
1611 | if (p != kp) | ||
1612 | /* When kp != p, p is always enabled. */ | ||
1613 | try_to_disable_aggr_kprobe(p); | ||
1614 | |||
1615 | if (!kprobes_all_disarmed && kprobe_disabled(p)) | ||
1616 | disarm_kprobe(p); | ||
1617 | out: | ||
1618 | mutex_unlock(&kprobe_mutex); | ||
1619 | return ret; | ||
1620 | } | ||
1621 | EXPORT_SYMBOL_GPL(disable_kprobe); | ||
1622 | |||
1623 | /* Enable one kprobe */ | ||
1624 | int __kprobes enable_kprobe(struct kprobe *kp) | ||
1625 | { | ||
1626 | int ret = 0; | ||
1627 | struct kprobe *p; | ||
1628 | |||
1629 | mutex_lock(&kprobe_mutex); | ||
1630 | |||
1631 | /* Check whether specified probe is valid. */ | ||
1632 | p = __get_valid_kprobe(kp); | ||
1633 | if (unlikely(p == NULL)) { | ||
1634 | ret = -EINVAL; | ||
1635 | goto out; | ||
1636 | } | ||
1637 | |||
1638 | if (kprobe_gone(kp)) { | ||
1639 | /* This kprobe has gone, we couldn't enable it. */ | ||
1640 | ret = -EINVAL; | ||
1641 | goto out; | ||
1642 | } | ||
1643 | |||
1644 | if (p != kp) | ||
1645 | kp->flags &= ~KPROBE_FLAG_DISABLED; | ||
1646 | |||
1647 | if (!kprobes_all_disarmed && kprobe_disabled(p)) { | ||
1648 | p->flags &= ~KPROBE_FLAG_DISABLED; | ||
1649 | arm_kprobe(p); | ||
1650 | } | ||
1651 | out: | ||
1652 | mutex_unlock(&kprobe_mutex); | ||
1653 | return ret; | ||
1654 | } | ||
1655 | EXPORT_SYMBOL_GPL(enable_kprobe); | ||
1656 | |||
1591 | void __kprobes dump_kprobe(struct kprobe *kp) | 1657 | void __kprobes dump_kprobe(struct kprobe *kp) |
1592 | { | 1658 | { |
1593 | printk(KERN_WARNING "Dumping kprobe:\n"); | 1659 | printk(KERN_WARNING "Dumping kprobe:\n"); |
@@ -1805,72 +1871,6 @@ static const struct file_operations debugfs_kprobes_operations = { | |||
1805 | .release = seq_release, | 1871 | .release = seq_release, |
1806 | }; | 1872 | }; |
1807 | 1873 | ||
1808 | /* Disable one kprobe */ | ||
1809 | int __kprobes disable_kprobe(struct kprobe *kp) | ||
1810 | { | ||
1811 | int ret = 0; | ||
1812 | struct kprobe *p; | ||
1813 | |||
1814 | mutex_lock(&kprobe_mutex); | ||
1815 | |||
1816 | /* Check whether specified probe is valid. */ | ||
1817 | p = __get_valid_kprobe(kp); | ||
1818 | if (unlikely(p == NULL)) { | ||
1819 | ret = -EINVAL; | ||
1820 | goto out; | ||
1821 | } | ||
1822 | |||
1823 | /* If the probe is already disabled (or gone), just return */ | ||
1824 | if (kprobe_disabled(kp)) | ||
1825 | goto out; | ||
1826 | |||
1827 | kp->flags |= KPROBE_FLAG_DISABLED; | ||
1828 | if (p != kp) | ||
1829 | /* When kp != p, p is always enabled. */ | ||
1830 | try_to_disable_aggr_kprobe(p); | ||
1831 | |||
1832 | if (!kprobes_all_disarmed && kprobe_disabled(p)) | ||
1833 | disarm_kprobe(p); | ||
1834 | out: | ||
1835 | mutex_unlock(&kprobe_mutex); | ||
1836 | return ret; | ||
1837 | } | ||
1838 | EXPORT_SYMBOL_GPL(disable_kprobe); | ||
1839 | |||
1840 | /* Enable one kprobe */ | ||
1841 | int __kprobes enable_kprobe(struct kprobe *kp) | ||
1842 | { | ||
1843 | int ret = 0; | ||
1844 | struct kprobe *p; | ||
1845 | |||
1846 | mutex_lock(&kprobe_mutex); | ||
1847 | |||
1848 | /* Check whether specified probe is valid. */ | ||
1849 | p = __get_valid_kprobe(kp); | ||
1850 | if (unlikely(p == NULL)) { | ||
1851 | ret = -EINVAL; | ||
1852 | goto out; | ||
1853 | } | ||
1854 | |||
1855 | if (kprobe_gone(kp)) { | ||
1856 | /* This kprobe has gone, we couldn't enable it. */ | ||
1857 | ret = -EINVAL; | ||
1858 | goto out; | ||
1859 | } | ||
1860 | |||
1861 | if (p != kp) | ||
1862 | kp->flags &= ~KPROBE_FLAG_DISABLED; | ||
1863 | |||
1864 | if (!kprobes_all_disarmed && kprobe_disabled(p)) { | ||
1865 | p->flags &= ~KPROBE_FLAG_DISABLED; | ||
1866 | arm_kprobe(p); | ||
1867 | } | ||
1868 | out: | ||
1869 | mutex_unlock(&kprobe_mutex); | ||
1870 | return ret; | ||
1871 | } | ||
1872 | EXPORT_SYMBOL_GPL(enable_kprobe); | ||
1873 | |||
1874 | static void __kprobes arm_all_kprobes(void) | 1874 | static void __kprobes arm_all_kprobes(void) |
1875 | { | 1875 | { |
1876 | struct hlist_head *head; | 1876 | struct hlist_head *head; |