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| author | Zqiang <qiang1.zhang@intel.com> | 2022-07-01 05:44:04 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2022-08-31 15:03:14 +0300 |
| commit | 6ca0292ccf968e0132e64d6a699d36ba3e92cb81 (patch) | |
| tree | e35b8248fe746aeabfbc0abfd14c3c9d1a93acc5 /tools/perf/scripts/python/syscall-counts.py | |
| parent | fcb42c9a77d490ed0974e4d394519481aa06e585 (diff) | |
| download | linux-6ca0292ccf968e0132e64d6a699d36ba3e92cb81.tar.xz | |
rcu: Make tiny RCU support leak callbacks for debug-object errors
Currently, only Tree RCU leaks callbacks setting when it detects a
duplicate call_rcu(). This commit causes Tiny RCU to also leak
callbacks in this situation.
Because this is Tiny RCU, kernel size is important:
1. CONFIG_TINY_RCU=y and CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
(Production kernel)
Original:
text data bss dec hex filename
26290663 20159823 15212544 61663030 3ace736 vmlinux
With this commit:
text data bss dec hex filename
26290663 20159823 15212544 61663030 3ace736 vmlinux
2. CONFIG_TINY_RCU=y and CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
(Debugging kernel)
Original:
text data bss dec hex filename
26291319 20160143 15212544 61664006 3aceb06 vmlinux
With this commit:
text data bss dec hex filename
26291319 20160431 15212544 61664294 3acec26 vmlinux
These results show that the kernel size is unchanged for production
kernels, as desired.
Signed-off-by: Zqiang <qiang1.zhang@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions