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Message-ID: <87mxz0vymx.fsf@openvz.org>
Date: Tue, 23 Feb 2010 17:02:14 +0300
From: Dmitry Monakhov <dmonakhov@...nvz.org>
To: Akinobu Mita <akinobu.mita@...il.com>
Cc: linux-kernel@...r.kernel.org
Subject: Re: [PATCH] failslab: add abitily to filter slab caches
Akinobu Mita <akinobu.mita@...il.com> writes:
> 2010/2/23 Dmitry Monakhov <dmonakhov@...nvz.org>:
>> 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" ?
But it already does this, any output except "1" treated as '0'
I've snipped this from trace option.
>
>> +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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