Re: [PATCH 1/4] SCHED: add some "wait..on_bit...timeout()" interfaces.
Date: Mon Sep 22 2014 - 22:11:19 EST
On Thu, 18 Sep 2014 16:42:22 +0200 Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> On Tue, Sep 16, 2014 at 03:31:35PM +1000, NeilBrown wrote:
> > In commit c1221321b7c25b53204447cff9949a6d5a7ddddc
> > sched: Allow wait_on_bit_action() functions to support a timeout
> > I suggested that a "wait_on_bit_timeout()" interface would not meet my
> > need. This isn't true - I was just over-engineering.
> > Including a 'private' field in wait_bit_key instead of a focused
> > "timeout" field was just premature generalization. If some other
> > use is ever found, it can be generalized or added later.
> > So this patch renames "private" to "timeout" with a meaning "stop
> > waiting when "jiffies" reaches or passes "timeout",
> > and adds two of the many possible wait..bit..timeout() interfaces:
> > wait_on_page_bit_killable_timeout(), which is the one I want to use,
> > and out_of_line_wait_on_bit_timeout() which is a reasonably general
> > example. Others can be added as needed.
> > Signed-off-by: NeilBrown <neilb@xxxxxxx>
> > ---
> > include/linux/pagemap.h | 2 ++
> > include/linux/wait.h | 5 ++++-
> > kernel/sched/wait.c | 36 ++++++++++++++++++++++++++++++++++++
> > mm/filemap.c | 13 +++++++++++++
> > 4 files changed, 55 insertions(+), 1 deletion(-)
> Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
I assume that means it is OK for this patch to go to Linus via the NFS tree,
so we get to keep everything together.
Now I just need an Ack from akpm for the mm bits (please...)
Description: PGP signature