On Tue 2019-02-19 23:08:20, John Ogness wrote:
> On 2019-02-18, Petr Mladek wrote:
> >> The printk subsystem needs to be able to query the size of the ring
> >> buffer, seek to specific entries within the ring buffer, and track
> >> if records could not be stored in the ring buffer.
> >>
> >>
On 2019-02-18, Petr Mladek wrote:
>> The printk subsystem needs to be able to query the size of the ring
>> buffer, seek to specific entries within the ring buffer, and track
>> if records could not be stored in the ring buffer.
>>
>> diff --git a/lib/printk_ringbuffer.c
On Tue 2019-02-12 15:29:45, John Ogness wrote:
> The printk subsystem needs to be able to query the size of the ring
> buffer, seek to specific entries within the ring buffer, and track
> if records could not be stored in the ring buffer.
>
> diff --git a/lib/printk_ringbuffer.c
On 2019-02-12, Linus Torvalds wrote:
> On Tue, Feb 12, 2019 at 6:30 AM John Ogness wrote:
>>
>> + while (atomic_long_read(>lost)) {
>> + atomic_long_dec(>lost);
>> + rb->seq++;
>> + }
>
> This
On Tue, Feb 12, 2019 at 6:30 AM John Ogness wrote:
>
> + while (atomic_long_read(>lost)) {
> + atomic_long_dec(>lost);
> + rb->seq++;
> + }
This looks like crazy garbage. It's neither atomic
The printk subsystem needs to be able to query the size of the ring
buffer, seek to specific entries within the ring buffer, and track
if records could not be stored in the ring buffer.
Signed-off-by: John Ogness
---
include/linux/printk_ringbuffer.h | 5 +++
lib/printk_ringbuffer.c
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