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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-10-10 22:52:30 +0200
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-11-29 00:52:33 +0100
commitd633198088bd9e358566c470ed182994403acc7a (patch)
tree41a5a7824e5e52f81c5c7a8794e80c6b5bd62834 /mm
parentLinux 4.15-rc1 (diff)
downloadlinux-d633198088bd9e358566c470ed182994403acc7a.tar.xz
linux-d633198088bd9e358566c470ed182994403acc7a.zip
srcu: Prohibit call_srcu() use under raw spinlocks
Invoking queue_delayed_work() while holding a raw spinlock is forbidden in -rt kernels, which is exactly what __call_srcu() does, indirectly via srcu_funnel_gp_start(). This commit therefore downgrades Tree SRCU's locking from raw to non-raw spinlocks, which works because call_srcu() is not ever called while holding a raw spinlock. Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions