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| author |   Paul E. McKenney <paulmck@kernel.org> | 2024-02-15 09:04:30 -0800 |
|---|---|---|
| committer |   Uladzislau Rezki (Sony) <urezki@gmail.com> | 2024-04-15 11:29:48 +0200 |
| commit | 65b4a59557f6fb5d4355093ad5a2c1bd5598ee41 (patch) | |
| tree | 31a5e70e4a09cfb69d4752364a9ab58297ba4134 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | rcu: Make TINY_RCU depend on !PREEMPT_RCU rather than !PREEMPTION (diff) | |
| download | wireguard-linux-65b4a59557f6fb5d4355093ad5a2c1bd5598ee41.tar.xz wireguard-linux-65b4a59557f6fb5d4355093ad5a2c1bd5598ee41.zip | |
srcu: Make Tiny SRCU explicitly disable preemption
Because Tiny SRCU is used only in kernels built with either
CONFIG_PREEMPT_NONE=y or CONFIG_PREEMPT_VOLUNTARY=y, there has not
been any need for TINY SRCU to explicitly disable preemption. However,
the prospect of lazy preemption changes that, and the lazy-preemption
patches do result in rcutorture runs finding both too-short grace periods
and grace-period hangs for Tiny SRCU.
This commit therefore adds the needed preempt_disable() and
preempt_enable() calls to Tiny SRCU.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Ankur Arora <ankur.a.arora@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions