Re: [PATCH] failslab: add abitily to filter slab caches

[Akinobu Mita]

2010/2/23 Dmitry Monakhov <dmonakhov@xxxxxxxxxx>:
> Example:
> echo 1 > /sys/kernel/slab/skbuff_head_cache/failslab
> echo 1 > /sys/kernel/debug/failslab/cache-filter

Looks good.

.Should we also support clearing the flag by
"echo 0 > /sys/kernel/slab/skbuff_head_cache/failslab" ?

> +static ssize_t failslab_store(struct kmem_cache *s, const char *buf,
> +                                                       size_t length)
> +{
> +       s->flags &= ~SLAB_FAILSLAB;
> +       if (buf[0] == '1')
> +               s->flags |= SLAB_FAILSLAB;
> +       return length;
> +}
> +SLAB_ATTR(failslab);
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