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| author | Wang Nan <wangnan0@huawei.com> | 2015-02-13 14:40:24 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-13 21:21:42 -0800 |
| commit | 977ad481b66ca91e1f6492b3c5c4748c68fdee9c (patch) | |
| tree | 2662accb1f4f5d238a56bff10d541b0797998302 /lib/percpu_counter.c | |
| parent | 5125991c9a9360fbdb717e22783c970bbd140660 (diff) | |
| download | linux-977ad481b66ca91e1f6492b3c5c4748c68fdee9c.tar.gz linux-977ad481b66ca91e1f6492b3c5c4748c68fdee9c.tar.bz2 linux-977ad481b66ca91e1f6492b3c5c4748c68fdee9c.zip | |
kprobes: set kprobes_all_disarmed earlier to enable re-optimization.
In original code, the probed instruction doesn't get optimized after
echo 0 > /sys/kernel/debug/kprobes/enabled
echo 1 > /sys/kernel/debug/kprobes/enabled
This is because original code checks kprobes_all_disarmed in
optimize_kprobe(), but this flag is turned off after calling that
function. Therefore, optimize_kprobe() will see kprobes_all_disarmed ==
true and doesn't do the optimization.
This patch simply turns off kprobes_all_disarmed earlier to enable
optimization.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/percpu_counter.c')
0 files changed, 0 insertions, 0 deletions