On 12/29/2015 03:40 PM, Ming Lei wrote:
Both htab_map_update_elem() and htab_map_delete_elem() can be
called from eBPF program, and they may be in kernel hot path,
so it isn't efficient to use a per-hashtable lock in this two
helpers.
The per-hashtable spinlock is used for protecting bucket's
hlist, and per-bucket lock is just enough. This patch converts
the per-hashtable lock into per-bucket spinlock, so that
contention can be decreased a lot.
Signed-off-by: Ming Lei <tom.leim...@gmail.com>
Looks better, thanks!
Acked-by: Daniel Borkmann <dan...@iogearbox.net>
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