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author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2023-05-09 16:49:02 +0300 |
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committer | Luis Chamberlain <mcgrof@kernel.org> | 2023-05-24 08:23:18 +0300 |
commit | cb0b50b813f6198b7d44ae8e169803440333577a (patch) | |
tree | cdfef99608a1e25ec39c5e685ec42e9494c343bb /kernel/module/kallsyms.c | |
parent | d36f6efbe0cb422fe1e4475717d75f3737088832 (diff) | |
download | linux-cb0b50b813f6198b7d44ae8e169803440333577a.tar.xz |
module: Remove preempt_disable() from module reference counting.
The preempt_disable() section in module_put() was added in commit
e1783a240f491 ("module: Use this_cpu_xx to dynamically allocate counters")
while the per-CPU counter were switched to another API. The API requires
that during the RMW operation the CPU remained the same.
This counting API was later replaced with atomic_t in commit
2f35c41f58a97 ("module: Replace module_ref with atomic_t refcnt")
Since this atomic_t replacement there is no need to keep preemption
disabled while the reference counter is modified.
Remove preempt_disable() from module_put(), __module_get() and
try_module_get().
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Diffstat (limited to 'kernel/module/kallsyms.c')
0 files changed, 0 insertions, 0 deletions