Jakub Kicinski 28b225282d page_pool: store detach_time as ktime_t to avoid false-negatives ...

While testing other changes in vng I noticed that
nl_netdev.page_pool_check flakes. This never happens in real CI.

Turns out vng may boot and get to that test in less than a second.
page_pool_detached() records the detach time in seconds, so if
vng is fast enough detach time is set to 0. Other code treats
0 as "not detached". detach_time is only used to report the state
to the user, so it's not a huge deal in practice but let's fix it.
Store the raw ktime_t (nanoseconds) instead. A nanosecond value
of 0 is practically impossible.

Acked-by: Jesper Dangaard Brouer <[email protected]>
Fixes: 69cb4952b6 ("net: page_pool: report when page pool was destroyed")
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

2026-03-10 19:03:34 -07:00

..

helpers.h

net: add helper to pre-check if PP for an Rx queue will be unreadable

2025-09-04 10:19:17 +02:00

memory_provider.h

net: move mp dev config validation to __net_mp_open_rxq()

2025-04-04 07:35:38 -07:00

types.h

page_pool: store detach_time as ktime_t to avoid false-negatives

2026-03-10 19:03:34 -07:00