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| author | Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> | 2006-01-09 20:52:43 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-10 08:01:40 -0800 |
| commit | 49a2a1b83ba6fa40c41968d6a28ba16e7ed0c3f7 (patch) | |
| tree | f257b535d0f09f9ac2531d40feb732349993665c /include/linux | |
| parent | 41dead49ccb4d7f0a34d56478f487342a3c3ab2b (diff) | |
| download | linux-3.10-49a2a1b83ba6fa40c41968d6a28ba16e7ed0c3f7.tar.gz linux-3.10-49a2a1b83ba6fa40c41968d6a28ba16e7ed0c3f7.tar.bz2 linux-3.10-49a2a1b83ba6fa40c41968d6a28ba16e7ed0c3f7.zip | |
[PATCH] kprobes: changed from using spinlock to mutex
Since Kprobes runtime exception handlers is now lock free as this code path is
now using RCU to walk through the list, there is no need for the
register/unregister{_kprobe} to use spin_{lock/unlock}_isr{save/restore}. The
serialization during registration/unregistration is now possible using just a
mutex.
In the above process, this patch also fixes a minor memory leak for x86_64 and
powerpc.
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kprobes.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index c03f2dc933d..ad6e4fe970f 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -150,7 +150,6 @@ struct kretprobe_instance { extern spinlock_t kretprobe_lock; extern int arch_prepare_kprobe(struct kprobe *p); -extern void arch_copy_kprobe(struct kprobe *p); extern void arch_arm_kprobe(struct kprobe *p); extern void arch_disarm_kprobe(struct kprobe *p); extern void arch_remove_kprobe(struct kprobe *p); |