[lkml]   [2004]   [Sep]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH/RFC] Simplified Readahead
Andrew Morton wrote:
> Steven Pratt <> wrote:

>>Can you expand on the POSIX_FADV_WILLNEED.
> It's an application-specified readahead hint. It should ideally be
> asynchronous so the application can get some I/O underway while it's
> crunching on something else. If the queue is contested then the
> application will accidentally block when launching the readahead, which
> kinda defeats the purpose.
> Yes, the application will block when it does the subsequent read() anyway,
> but applications expect to block in read(). Seems saner this way.

Good point. I guess you're right.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 14:06    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean