netdev - Re: [PATCH] fs/select: add vmalloc fallback for select(2)

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Message-ID: <3097822d-231b-8406-17bc-631aea4f82e7@suse.cz>
Date:   Thu, 22 Sep 2016 18:40:30 +0200
From:   Vlastimil Babka <vbabka@...e.cz>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     Alexander Viro <viro@...iv.linux.org.uk>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, Michal Hocko <mhocko@...nel.org>,
        netdev@...r.kernel.org
Subject: Re: [PATCH] fs/select: add vmalloc fallback for select(2)

On 09/22/2016 06:24 PM, Eric Dumazet wrote:

>> +		bits = kmalloc(alloc_size, GFP_KERNEL|__GFP_NOWARN);
>> +		if (!bits && alloc_size > PAGE_SIZE) {
>> +			bits = vmalloc(alloc_size);
>> +
>> +			if (!bits)
>> +				goto out_nofds;
>
> Test should happen if alloc_size <= PAGE_SIZE
>
>> +		}
>
> if (!bits && alloc_size > PAGE_SIZE)
>     bits = vmalloc(alloc_size);
>
> if (!bits)
>       goto out_nofds;
>

Thanks... stupid last-minute changes.