1. 03 Oct, 2009 3 commits
  2. 02 Oct, 2009 1 commit
    • Jens Axboe's avatar
      cfq-iosched: add a knob for desktop interactiveness · 1d223515
      Jens Axboe authored
      
      
      This is basically identical to what Vivek Goyal posted, but combined
      into one and labelled 'desktop' instead of 'fairness'. The goal
      is to continue to improve on the latency side of things as it relates
      to interactiveness, keeping the questionable bits under this sysfs
      tunable so it would be easy for throughput-only people to turn off.
      
      Apart from adding the interactive sysfs knob, it also adds the
      behavioural change of allowing slice idling even if the hardware
      does tagged command queuing.
      Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
      1d223515
  3. 01 Oct, 2009 33 commits
  4. 27 Sep, 2009 3 commits
    • Linus Torvalds's avatar
      Linux 2.6.32-rc1 · 17d857be
      Linus Torvalds authored
      17d857be
    • Linus Torvalds's avatar
      alpha: Fix duplicate <asm/thread_info.h> include · b3b75cef
      Linus Torvalds authored
      .. duplicated by merging the same fix twice, for details see commit
      0d9df251 ("Merge
      git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes"
      
      )
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      b3b75cef
    • Dave Young's avatar
      tty: Fix regressions caused by commit b50989dc · f278a2f7
      Dave Young authored
      The following commit made console open fails while booting:
      
      	commit b50989dc
      	Author: Alan Cox <alan@linux.intel.com>
      	Date:   Sat Sep 19 13:13:22 2009 -0700
      
      	tty: make the kref destructor occur asynchronously
      
      Due to tty release routines run in a workqueue now, error like the
      following will be reported while booting:
      
      INIT open /dev/console Input/output error
      
      It also causes hibernation regression to appear as reported at
      http://bugzilla.kernel.org/show_bug.cgi?id=14229
      
      
      
      The reason is that now there's latency issue with closing, but when
      we open a "closing not finished" tty, -EIO will be returned.
      
      Fix it as per the following Alan's suggestion:
      
        Fun but it's actually not a bug and the fix is wrong in itself as
        the port may be closing but not yet being destructed, in which case
        it seems to do the wrong thing.  Opening a tty that is closing (and
        could be closing for long periods) is supposed to return -EIO.
      
        I suspect a better way to deal with this and keep the old console
        timing is to split tty->shutdown into two functions.
      
        tty->shutdown() - called synchronously just before we dump the tty
        onto the waitqueue for destruction
      
        tty->cleanup() - called when the destructor runs.
      
        We would then do the shutdown part which can occur in IRQ context
        fine, before queueing the rest of the release (from tty->magic = 0
        ...  the end) to occur asynchronously
      
        The USB update in -next would then need a call like
      
             if (tty->cleanup)
                     tty->cleanup(tty);
      
        at the top of the async function and the USB shutdown to be split
        between shutdown and cleanup as the USB resource cleanup and final
        tidy cannot occur synchronously as it needs to sleep.
      
        In other words the logic becomes
      
             final kref put
                     make object unfindable
      
             async
                     clean it up
      Signed-off-by: default avatarDave Young <hidave.darkstar@gmail.com>
      [ rjw: Rebased on top of 2.6.31-git, reworked the changelog. ]
      Signed-off-by: default avatar"Rafael J. Wysocki" <rjw@sisk.pl>
      [ Changed serial naming to match new rules, dropped tty_shutdown as per
        comments from Alan Stern  - Linus ]
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      f278a2f7