bpf: add schedule points to map alloc/free

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While using large percpu maps, htab_map_alloc() can hold
cpu for hundreds of ms.

This patch adds cond_resched() calls to percpu alloc/free
call sites, all running in process context.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Eric Dumazet 2017-12-12 14:22:39 -08:00 • committed by Alexei Starovoitov

parent 9dbd2d948e

commit 9147efcbe0

1 changed files with 2 additions and 0 deletions

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kernel/bpf/hashtab.c

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