Messages in this thread | | | Date | Wed, 30 Jun 2004 14:02:40 -0500 | From | Olof Johansson <> | Subject | Re: [PATCH] PPC64: lockfix for rtas error log |
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Benjamin Herrenschmidt wrote: >> So instead, the problem can be easily >>avoided by not using a global buffer. The code below mallocs/frees. >>Its not perf-critcal, so I don't mind malloc overhead. Would this >>work for you? Patch attached below. > > > I prefer that, but couldn't we move the kmalloc outside of the spinlock > and so use GFP_KERNEL instead ?
Isn't the global buffer used since it's in BSS, and as such, in low memory, guaranteed to be below 4GB? RTAS has limitations that restricts any passed-in buffers to be addressable as 32-bit real mode pointers, right?
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