Re: [patch 2/13] remove pages from the LRU in __free_pages_ok()

From: David S. Miller (davem@redhat.com)
Date: Sun Jul 28 2002 - 21:50:55 EST


   From: Andrew Morton <akpm@zip.com.au>
   Date: Sun, 28 Jul 2002 17:32:56 -0700
   
   Also skb_release_data(), ___pskb_trim() and __pskb_pull_tail(). Can these
   ever perform the final release against a page which is on the LRU?
   In interrupt context?

These page releases run from either user or softint context.

They must never run from HW irqs, in fact there is a BUG()
check there against this.

Any page that can be found in the page cache can end up here. So
whatever that mean for "release against a page which is on the LRU"
applies here.
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