Messages in this thread Patch in this message | | | From | zanussi@kernel ... | Subject | [PATCH RT 12/19] Revert "futex: Ensure lock/unlock symetry versus pi_lock and hash bucket lock" | Date | Thu, 8 Aug 2019 14:52:40 -0500 |
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
v4.14.137-rt65-rc1 stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit 6a773b70cf105b46298ed3b44e77c102ce31d9ec ]
Drop the RT fixup, the futex code will be changed to avoid the need for the workaround.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Tom Zanussi <zanussi@kernel.org> --- kernel/futex.c | 2 -- 1 file changed, 2 deletions(-)
diff --git a/kernel/futex.c b/kernel/futex.c index ad0abb0e339f..07b148ad703a 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -936,9 +936,7 @@ void exit_pi_state_list(struct task_struct *curr) if (head->next != next) { /* retain curr->pi_lock for the loop invariant */ raw_spin_unlock(&pi_state->pi_mutex.wait_lock); - raw_spin_unlock_irq(&curr->pi_lock); spin_unlock(&hb->lock); - raw_spin_lock_irq(&curr->pi_lock); put_pi_state(pi_state); continue; } -- 2.14.1
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