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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-20 09:39:11 +0200 |
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| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-20 09:39:11 +0200 |
| commit | 6f2c6599ba70da7ca9603f8026c4e3cdc273ee02 (patch) | |
| tree | 88228298182133d9522be62c8cb3eecfcb595d49 /kernel/debug/debug_core.c | |
| parent | ea1be1e59b19017e61aa357d524b743ba5602d3c (diff) | |
| parent | ba47d845d715a010f7b51f6f89bae32845e6acb7 (diff) | |
| download | cachepc-linux-6f2c6599ba70da7ca9603f8026c4e3cdc273ee02.tar.gz cachepc-linux-6f2c6599ba70da7ca9603f8026c4e3cdc273ee02.zip | |
Merge 5.8-rc6 into tty-next
We need the serial/tty fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/debug/debug_core.c')
| -rw-r--r-- | kernel/debug/debug_core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c index bc8d25f2ac8a..9e5934780f41 100644 --- a/kernel/debug/debug_core.c +++ b/kernel/debug/debug_core.c @@ -587,6 +587,7 @@ static int kgdb_cpu_enter(struct kgdb_state *ks, struct pt_regs *regs, arch_kgdb_ops.disable_hw_break(regs); acquirelock: + rcu_read_lock(); /* * Interrupts will be restored by the 'trap return' code, except when * single stepping. @@ -646,6 +647,7 @@ return_normal: atomic_dec(&slaves_in_kgdb); dbg_touch_watchdogs(); local_irq_restore(flags); + rcu_read_unlock(); return 0; } cpu_relax(); @@ -664,6 +666,7 @@ return_normal: raw_spin_unlock(&dbg_master_lock); dbg_touch_watchdogs(); local_irq_restore(flags); + rcu_read_unlock(); goto acquirelock; } @@ -787,6 +790,7 @@ kgdb_restore: raw_spin_unlock(&dbg_master_lock); dbg_touch_watchdogs(); local_irq_restore(flags); + rcu_read_unlock(); return kgdb_info[cpu].ret_state; } |