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Re: [tip:x86/mm] percpu: Introduce a read-mostly percpu API

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From: Eric Dumazet
Subject: Re: [tip:x86/mm] percpu: Introduce a read-mostly percpu API
Date: Wednesday, October 20, 2010 - 11:07 pm

Le mercredi 20 octobre 2010 à 22:54 -0700, H. Peter Anvin a écrit :


I see, and we dont have better way to express this hint/requirement than
using PAGE_SIZE or INTERNODE_CACHE_SHIFT ?

In your patch you force a PAGE_SIZE alignement *before*
*(.data..percpu..page_aligned)   

If this alignment is really needed, this should be part of another
patch, since this fixes a previous bug in 2.6.36 ?



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Messages in current thread:
[PATCH 1/2]percpu: introduce read mostly percpu API, Shaohua Li, (Tue Oct 19, 8:07 pm)
Re: [PATCH 1/2]percpu: introduce read mostly percpu API, Eric Dumazet, (Tue Oct 19, 10:18 pm)
Re: [PATCH 1/2]percpu: introduce read mostly percpu API, H. Peter Anvin, (Tue Oct 19, 11:00 pm)
Re: [PATCH 1/2]percpu: introduce read mostly percpu API, Andi Kleen, (Wed Oct 20, 12:35 am)
Re: [PATCH 1/2]percpu: introduce read mostly percpu API, Eric Dumazet, (Wed Oct 20, 12:53 am)
Re: [PATCH 1/2]percpu: introduce read mostly percpu API, H. Peter Anvin, (Wed Oct 20, 2:33 pm)
Re: [PATCH 1/2]percpu: introduce read mostly percpu API, H. Peter Anvin, (Wed Oct 20, 2:38 pm)
Re: [PATCH 1/2]percpu: introduce read mostly percpu API, H. Peter Anvin, (Wed Oct 20, 2:42 pm)
[tip:x86/mm] percpu: Introduce a read-mostly percpu API, tip-bot for Shaohua Li, (Wed Oct 20, 4:06 pm)
Re: [tip:x86/mm] percpu: Introduce a read-mostly percpu API, Shaohua Li, (Wed Oct 20, 6:38 pm)
Re: [tip:x86/mm] percpu: Introduce a read-mostly percpu API, H. Peter Anvin, (Wed Oct 20, 7:53 pm)
Re: [tip:x86/mm] percpu: Introduce a read-mostly percpu API, Eric Dumazet, (Wed Oct 20, 10:33 pm)
Re: [tip:x86/mm] percpu: Introduce a read-mostly percpu API, H. Peter Anvin, (Wed Oct 20, 10:54 pm)
Re: [tip:x86/mm] percpu: Introduce a read-mostly percpu API, Eric Dumazet, (Wed Oct 20, 11:07 pm)
Re: [tip:x86/mm] percpu: Introduce a read-mostly percpu API, H. Peter Anvin, (Wed Oct 20, 11:09 pm)
Re: [tip:x86/mm] percpu: Introduce a read-mostly percpu API, H. Peter Anvin, (Wed Oct 20, 11:10 pm)
Re: [tip:x86/mm] percpu: Introduce a read-mostly percpu API, Shaohua Li, (Wed Oct 20, 11:17 pm)
Re: [tip:x86/mm] percpu: Introduce a read-mostly percpu API, Eric Dumazet, (Wed Oct 20, 11:48 pm)
Re: [tip:x86/mm] percpu: Introduce a read-mostly percpu API, H. Peter Anvin, (Wed Oct 20, 11:54 pm)
[tip:x86/mm] x86-32, percpu: Correct the ordering of the p ..., tip-bot for H. Peter ..., (Thu Oct 21, 12:40 am)