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author | Grant Likely <grant.likely@secretlab.ca> | 2010-05-22 08:36:56 +0200 |
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committer | Grant Likely <grant.likely@secretlab.ca> | 2010-05-22 08:36:56 +0200 |
commit | cf9b59e9d3e008591d1f54830f570982bb307a0d (patch) | |
tree | 113478ce8fd8c832ba726ffdf59b82cb46356476 /kernel/kprobes.c | |
parent | of: change of_match_device to work with struct device (diff) | |
parent | fbmem: avoid printk format warning with 32-bit resources (diff) | |
download | linux-cf9b59e9d3e008591d1f54830f570982bb307a0d.tar.xz linux-cf9b59e9d3e008591d1f54830f570982bb307a0d.zip |
Merge remote branch 'origin' into secretlab/next-devicetree
Merging in current state of Linus' tree to deal with merge conflicts and
build failures in vio.c after merge.
Conflicts:
drivers/i2c/busses/i2c-cpm.c
drivers/i2c/busses/i2c-mpc.c
drivers/net/gianfar.c
Also fixed up one line in arch/powerpc/kernel/vio.c to use the
correct node pointer.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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) arch_remove_kprobe(p); } +/* Disable one kprobe */ +int __kprobes disable_kprobe(struct kprobe *kp) +{ + int ret = 0; + struct kprobe *p; + + mutex_lock(&kprobe_mutex); + + /* Check whether specified probe is valid. */ + p = __get_valid_kprobe(kp); + if (unlikely(p == NULL)) { + ret = -EINVAL; + goto out; + } + + /* If the probe is already disabled (or gone), just return */ + if (kprobe_disabled(kp)) + goto out; + + kp->flags |= KPROBE_FLAG_DISABLED; + if (p != kp) + /* When kp != p, p is always enabled. */ + try_to_disable_aggr_kprobe(p); + + if (!kprobes_all_disarmed && kprobe_disabled(p)) + disarm_kprobe(p); +out: + mutex_unlock(&kprobe_mutex); + return ret; +} +EXPORT_SYMBOL_GPL(disable_kprobe); + +/* Enable one kprobe */ +int __kprobes enable_kprobe(struct kprobe *kp) +{ + int ret = 0; + struct kprobe *p; + + mutex_lock(&kprobe_mutex); + + /* Check whether specified probe is valid. */ + p = __get_valid_kprobe(kp); + if (unlikely(p == NULL)) { + ret = -EINVAL; + goto out; + } + + if (kprobe_gone(kp)) { + /* This kprobe has gone, we couldn't enable it. */ + ret = -EINVAL; + goto out; + } + + if (p != kp) + kp->flags &= ~KPROBE_FLAG_DISABLED; + + if (!kprobes_all_disarmed && kprobe_disabled(p)) { + p->flags &= ~KPROBE_FLAG_DISABLED; + arm_kprobe(p); + } +out: + mutex_unlock(&kprobe_mutex); + return ret; +} +EXPORT_SYMBOL_GPL(enable_kprobe); + void __kprobes dump_kprobe(struct kprobe *kp) { printk(KERN_WARNING "Dumping kprobe:\n"); @@ -1805,72 +1871,6 @@ static const struct file_operations debugfs_kprobes_operations = { .release = seq_release, }; -/* Disable one kprobe */ -int __kprobes disable_kprobe(struct kprobe *kp) -{ - int ret = 0; - struct kprobe *p; - - mutex_lock(&kprobe_mutex); - - /* Check whether specified probe is valid. */ - p = __get_valid_kprobe(kp); - if (unlikely(p == NULL)) { - ret = -EINVAL; - goto out; - } - - /* If the probe is already disabled (or gone), just return */ - if (kprobe_disabled(kp)) - goto out; - - kp->flags |= KPROBE_FLAG_DISABLED; - if (p != kp) - /* When kp != p, p is always enabled. */ - try_to_disable_aggr_kprobe(p); - - if (!kprobes_all_disarmed && kprobe_disabled(p)) - disarm_kprobe(p); -out: - mutex_unlock(&kprobe_mutex); - return ret; -} -EXPORT_SYMBOL_GPL(disable_kprobe); - -/* Enable one kprobe */ -int __kprobes enable_kprobe(struct kprobe *kp) -{ - int ret = 0; - struct kprobe *p; - - mutex_lock(&kprobe_mutex); - - /* Check whether specified probe is valid. */ - p = __get_valid_kprobe(kp); - if (unlikely(p == NULL)) { - ret = -EINVAL; - goto out; - } - - if (kprobe_gone(kp)) { - /* This kprobe has gone, we couldn't enable it. */ - ret = -EINVAL; - goto out; - } - - if (p != kp) - kp->flags &= ~KPROBE_FLAG_DISABLED; - - if (!kprobes_all_disarmed && kprobe_disabled(p)) { - p->flags &= ~KPROBE_FLAG_DISABLED; - arm_kprobe(p); - } -out: - mutex_unlock(&kprobe_mutex); - return ret; -} -EXPORT_SYMBOL_GPL(enable_kprobe); - static void __kprobes arm_all_kprobes(void) { struct hlist_head *head; |