Displaying 2 results from an estimated 2 matches for "u64_stats_update_begin_irqsave".
2020 May 06
2
[PATCH] virtio_net: fix lockdep warning on 32 bit
...kdep is trying to enforce
the rule that the same lock isn't accessed from preemptible
and softirq context. This causes a false-positive warning:
WARNING: inconsistent lock state
...
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
As a work around, shut down the warning by switching
to u64_stats_update_begin_irqsave - that works by disabling
interrupts on 32 bit only, is a NOP on 64 bit.
Reported-by: Thomas Gleixner <tglx at linutronix.de>
Suggested-by: Eric Dumazet <eric.dumazet at gmail.com>
Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
---
I'm not thrilled about this but this...
2020 May 07
1
[PATCH v2] virtio_net: fix lockdep warning on 32 bit
...n't accessed from preemptible and softirq
context - it doesn't know about napi being enabled/disabled. This causes
a false-positive warning:
WARNING: inconsistent lock state
...
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
As a work around, shut down the warning by switching
to u64_stats_update_begin_irqsave - that works by disabling
interrupts on 32 bit only, is a NOP on 64 bit.
Reported-by: Thomas Gleixner <tglx at linutronix.de>
Suggested-by: Eric Dumazet <eric.dumazet at gmail.com>
Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
---
changes from v1:
builds now. lightly te...