1. 22 May, 2009 2 commits
  2. 10 Dec, 2008 1 commit
  3. 04 Dec, 2008 1 commit
  4. 21 Oct, 2008 7 commits
  5. 16 Oct, 2008 1 commit
  6. 09 Oct, 2008 2 commits
    • Denis ChengRq's avatar
      block: mark bio_split_pool static · 6feef531
      Denis ChengRq authored
      Since all bio_split calls refer the same single bio_split_pool, the bio_split
      function can use bio_split_pool directly instead of the mempool_t parameter;
      
      then the mempool_t parameter can be removed from bio_split param list, and
      bio_split_pool is only referred in fs/bio.c file, can be marked static.
      Signed-off-by: default avatarDenis ChengRq <crquan@gmail.com>
      Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
      6feef531
    • Tejun Heo's avatar
      block: don't depend on consecutive minor space · f331c029
      Tejun Heo authored
      * Implement disk_devt() and part_devt() and use them to directly
        access devt instead of computing it from ->major and ->first_minor.
      
        Note that all references to ->major and ->first_minor outside of
        block layer is used to determine devt of the disk (the part0) and as
        ->major and ->first_minor will continue to represent devt for the
        disk, converting these users aren't strictly necessary.  However,
        convert them for consistency.
      
      * Implement disk_max_parts() to avoid directly deferencing
        genhd->minors.
      
      * Update bdget_disk() such that it doesn't assume consecutive minor
        space.
      
      * Move devt computation from register_disk() to add_disk() and make it
        the only one (all other usages use the initially determined value).
      
      These changes clean up the code and will help disk->part dereference
      fix and extended block device numbers.
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
      f331c029
  7. 27 Aug, 2008 1 commit
  8. 22 Jul, 2008 1 commit
  9. 04 Jul, 2008 2 commits
  10. 03 Jul, 2008 1 commit
    • Alasdair G Kergon's avatar
      Add bvec_merge_data to handle stacked devices and ->merge_bvec() · cc371e66
      Alasdair G Kergon authored
      When devices are stacked, one device's merge_bvec_fn may need to perform
      the mapping and then call one or more functions for its underlying devices.
      
      The following bio fields are used:
        bio->bi_sector
        bio->bi_bdev
        bio->bi_size
        bio->bi_rw  using bio_data_dir()
      
      This patch creates a new struct bvec_merge_data holding a copy of those
      fields to avoid having to change them directly in the struct bio when
      going down the stack only to have to change them back again on the way
      back up.  (And then when the bio gets mapped for real, the whole
      exercise gets repeated, but that's a problem for another day...)
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      Cc: Neil Brown <neilb@suse.de>
      Cc: Milan Broz <mbroz@redhat.com>
      Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
      cc371e66
  11. 29 Apr, 2008 3 commits
  12. 05 Mar, 2008 1 commit
  13. 06 Feb, 2008 1 commit
  14. 25 Jan, 2008 3 commits
  15. 18 Dec, 2007 1 commit
  16. 08 Nov, 2007 1 commit
  17. 16 Oct, 2007 2 commits
  18. 10 Oct, 2007 1 commit
  19. 24 Jul, 2007 1 commit
  20. 17 Jul, 2007 1 commit
    • Rafael J. Wysocki's avatar
      Freezer: make kernel threads nonfreezable by default · 83144186
      Rafael J. Wysocki authored
      Currently, the freezer treats all tasks as freezable, except for the kernel
      threads that explicitly set the PF_NOFREEZE flag for themselves.  This
      approach is problematic, since it requires every kernel thread to either
      set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it doesn't
      care for the freezing of tasks at all.
      
      It seems better to only require the kernel threads that want to or need to
      be frozen to use some freezer-related code and to remove any
      freezer-related code from the other (nonfreezable) kernel threads, which is
      done in this patch.
      
      The patch causes all kernel threads to be nonfreezable by default (ie.  to
      have PF_NOFREEZE set by default) and introduces the set_freezable()
      function that should be called by the freezable kernel threads in order to
      unset PF_NOFREEZE.  It also makes all of the currently freezable kernel
      threads call set_freezable(), so it shouldn't cause any (intentional)
      change of behaviour to appear.  Additionally, it updates documentation to
      describe the freezing of tasks more accurately.
      
      [akpm@linux-foundation.org: build fixes]
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Acked-by: default avatarNigel Cunningham <nigel@nigel.suspend2.net>
      Cc: Pavel Machek <pavel@ucw.cz>
      Cc: Oleg Nesterov <oleg@tv-sign.ru>
      Cc: Gautham R Shenoy <ego@in.ibm.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      83144186
  21. 16 Jul, 2007 1 commit
  22. 11 Jul, 2007 1 commit
    • Tejun Heo's avatar
      sysfs: kill unnecessary attribute->owner · 7b595756
      Tejun Heo authored
      sysfs is now completely out of driver/module lifetime game.  After
      deletion, a sysfs node doesn't access anything outside sysfs proper,
      so there's no reason to hold onto the attribute owners.  Note that
      often the wrong modules were accounted for as owners leading to
      accessing removed modules.
      
      This patch kills now unnecessary attribute->owner.  Note that with
      this change, userland holding a sysfs node does not prevent the
      backing module from being unloaded.
      
      For more info regarding lifetime rule cleanup, please read the
      following message.
      
        http://article.gmane.org/gmane.linux.kernel/510293
      
      (tweaked by Greg to not delete the field just yet, to make it easier to
      merge things properly.)
      Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
      Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      7b595756
  23. 25 Apr, 2007 1 commit
    • Andrew Morton's avatar
      packet: fix error handling · cbc31a47
      Andrew Morton authored
      The packet driver is assuming (reasonably) that the (undocumented)
      request.errors is an errno.  But it is in fact some mysterious bitfield.  When
      things go wrong we return weird positive numbers to the VFS as pointers and it
      goes oops.
      
      Thanks to William Heimbigner for reporting and diagnosis.
      
      (It doesn't oops, but this driver still doesn't work for William)
      
      Cc: William Heimbigner <icxcnika@mar.tar.cc>
      Cc: Peter Osterlund <petero2@telia.com>
      Cc: Jens Axboe <jens.axboe@oracle.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      cbc31a47
  24. 21 Feb, 2007 1 commit
  25. 12 Feb, 2007 1 commit
  26. 11 Feb, 2007 1 commit