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| author |   Wang Nan <wangnan0@huawei.com> | 2015-02-13 14:40:26 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-13 21:21:42 -0800 |
| commit | 69d54b916d83872a0a327778a01af2a096923f59 (patch) | |
| tree | ee62261a484b8e939ad763e2cf4e8039ca9658ea /fs | |
| parent | kprobes: set kprobes_all_disarmed earlier to enable re-optimization. (diff) | |
| download | linux-dev-69d54b916d83872a0a327778a01af2a096923f59.tar.xz linux-dev-69d54b916d83872a0a327778a01af2a096923f59.zip | |
kprobes: makes kprobes/enabled works correctly for optimized kprobes.
debugfs/kprobes/enabled doesn't work correctly on optimized kprobes.
Masami Hiramatsu has a test report on x86_64 platform:
https://lkml.org/lkml/2015/1/19/274
This patch forces it to unoptimize kprobe if kprobes_all_disarmed is set.
It also checks the flag in unregistering path for skipping unneeded
disarming process when kprobes globally disarmed.
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 'fs')
0 files changed, 0 insertions, 0 deletions