Messages in this thread | | | Date | Sun, 13 Oct 2002 12:47:56 +0100 (BST) | From | Hugh Dickins <> | Subject | Re: Strange load spikes on 2.4.19 kernel |
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On 13 Oct 2002, Andi Kleen wrote: > > Still in 2.4 the VFS takes the big kernel lock unnecessarily for > a few VFS operations (no matter if the underlying FS needs it or not). > That's fixed in 2.5.
Something I was a bit surprised to notice recently: 2.5 still holds big kernel lock around the potentially very lengthy vmtruncate() - is that one still really necessary at VFS level?
Hugh
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