Re: [PATCH] Export current_is_keventd() for libphy

Linus Torvalds <[email protected]> wrote:

> How about something like this?

At first glance, this looks reasonable.

It also looks like it should be used to replace a lot of the
cancel_delayed_work() calls that attempt to cancel _undelayed_ work items.
That would allow a number of work items to be downgraded from delayed_work to
work_struct.

Also, the name "run_scheduled_work" sort of suggests that the work *will* be
run regardless of whether it was pending or not.  Given the confusion over
cancel_delayed_work(), I imagine this will rain confusion too.

+	if (get_wq_data(work) == cwq
+	    && test_bit(WORK_STRUCT_PENDING, &work->management)

I wonder if those can be combined, perhaps:

+	if ((work->management & ~WORK_STRUCT_NOAUTOREL) ==
+	    ((unsigned long) cwq | (1 << WORK_STRUCT_PENDING))

Otherwise for i386 the compiler can't combine them because test_bit() is done
with inline asm.

And:

+		if (!test_bit(WORK_STRUCT_PENDING, &work->management))

Should possibly be:

+		if (!work_pending(work))

David
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Follow-Ups:
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: David Howells <[email protected]>
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: Linus Torvalds <[email protected]>
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: Jeff Garzik <[email protected]>

• References:
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: Linus Torvalds <[email protected]>
  • [PATCH] Export current_is_keventd() for libphy
    • From: Ben Collins <[email protected]>
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: "Maciej W. Rozycki" <[email protected]>
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: Andy Fleming <[email protected]>
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: Roland Dreier <[email protected]>
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: "Maciej W. Rozycki" <[email protected]>
  • Re: [PATCH] Export current_is_keventd() for libphy
    • From: Andrew Morton <[email protected]>

• Prev by Date: Re: [PATCH 26/35] Unionfs: Privileged operations workqueue
• Next by Date: Re: PMTMR running too fast
• Previous by thread: Re: [PATCH] Export current_is_keventd() for libphy
• Next by thread: Re: [PATCH] Export current_is_keventd() for libphy
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]