Re: Oops in 2.2.15 with NWFS using the Linux Buffer Cache SMP

From: Jeff V. Merkey (jmerkey@timpanogas.com)
Date: Wed Mar 29 2000 - 14:38:01 EST


Stephen,

This is what I thought. Noticed that 2.3 fixes much of this. I will
put the kernel lock over the buffer cache when using it in this mode on
2.2. The LRU in NWFS is fully SMP and multi-threaded -- if folks want
SMP buffer cache support they can use that one on 2.2.

Very Truly Yours,

Jeff

"Stephen C. Tweedie" wrote:
>
> Hi,
>
> On Wed, Mar 29, 2000 at 03:16:50AM -0700, Jeff V. Merkey wrote:
> >
> > Is it required that I hold the kernel lock with lock_kernel() over the
> > Linux Buffer Cache when doing I/O to it in 2.2.15?
>
> Yes, the bulk of the 2.2 VFS is still single-threaded.
>
> --Stephen
>
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