[net-next v6 PATCH 0/2] page_pool: NUMA node handling fixes

Jesper Dangaard Brouer
2019-12-27T17:13:26Z

The recently added NUMA changes (merged for v5.5) to page_pool, it both
contains a bug in handling NUMA_NO_NODE condition, and added code to
the fast-path.

This patchset fixes the bug and moves code out of fast-path. The first
patch contains a fix that should be considered for 5.5. The second
patch reduce code size and overhead in case CONFIG_NUMA is disabled.

Currently the NUMA_NO_NODE setting bug only affects driver 'ti_cpsw'
(drivers/net/ethernet/ti/), but after this patchset, we plan to move
other drivers (netsec and mvneta) to use NUMA_NO_NODE setting.

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Jesper Dangaard Brouer (2):
page_pool: handle page recycle for NUMA_NO_NODE condition
page_pool: help compiler remove code in case CONFIG_NUMA=n

net/core/page_pool.c | 89 +++++++++++++++++++++++++++++++++++++++-----------
1 file changed, 70 insertions(+), 19 deletions(-)

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