On Thu, 18 Sep 2014 16:42:22 +0200 Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > 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> Thanks. 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...) NeilBrown
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