1. 27 7月, 2011 2 次提交
  2. 10 6月, 2011 1 次提交
  3. 17 5月, 2011 1 次提交
  4. 10 5月, 2011 1 次提交
  5. 02 5月, 2011 3 次提交
  6. 01 5月, 2011 2 次提交
  7. 26 4月, 2011 1 次提交
  8. 22 4月, 2011 1 次提交
    • T
      block: unexport DISK_EVENT_MEDIA_CHANGE for legacy/fringe drivers · 9fd097b1
      Tejun Heo 提交于
      In-kernel disk event polling doesn't matter for legacy/fringe drivers
      and may lead to infinite event loop if ->check_events() implementation
      generates events on level condition instead of edge.
      
      Now that block layer supports suppressing exporting unlisted events,
      simply leaving disk->events cleared allows these drivers to keep the
      internal revalidation behavior intact while avoiding weird
      interactions with userland event handler.
      Signed-off-by: NTejun Heo <tj@kernel.org>
      Cc: Kay Sievers <kay.sievers@vrfy.org>
      Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
      9fd097b1
  9. 31 3月, 2011 1 次提交
  10. 17 3月, 2011 1 次提交
  11. 10 3月, 2011 2 次提交
    • J
      block: remove per-queue plugging · 7eaceacc
      Jens Axboe 提交于
      Code has been converted over to the new explicit on-stack plugging,
      and delay users have been converted to use the new API for that.
      So lets kill off the old plugging along with aops->sync_page().
      Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
      7eaceacc
    • T
      i2o_block: Convert to bdops->check_events() · f47350fd
      Tejun Heo 提交于
      Convert from ->media_changed() to ->check_events().
      
      i2o_block buffers media changed state and clears it after reporting.
      It will behave correctly with kernel event polling.
      Signed-off-by: NTejun Heo <tj@kernel.org>
      Cc: Jens Axboe <axboe@kernel.dk>
      Cc: Kay Sievers <kay.sievers@vrfy.org>
      Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
      f47350fd
  12. 13 2月, 2011 5 次提交
  13. 01 2月, 2011 1 次提交
  14. 25 1月, 2011 1 次提交
  15. 19 1月, 2011 1 次提交
  16. 17 11月, 2010 1 次提交
    • J
      SCSI host lock push-down · f281233d
      Jeff Garzik 提交于
      Move the mid-layer's ->queuecommand() invocation from being locked
      with the host lock to being unlocked to facilitate speeding up the
      critical path for drivers who don't need this lock taken anyway.
      
      The patch below presents a simple SCSI host lock push-down as an
      equivalent transformation.  No locking or other behavior should change
      with this patch.  All existing bugs and locking orders are preserved.
      
      Additionally, add one parameter to queuecommand,
      	struct Scsi_Host *
      and remove one parameter from queuecommand,
      	void (*done)(struct scsi_cmnd *)
      
      Scsi_Host* is a convenient pointer that most host drivers need anyway,
      and 'done' is redundant to struct scsi_cmnd->scsi_done.
      
      Minimal code disturbance was attempted with this change.  Most drivers
      needed only two one-line modifications for their host lock push-down.
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      Acked-by: NJames Bottomley <James.Bottomley@suse.de>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      f281233d
  17. 02 11月, 2010 1 次提交
  18. 05 10月, 2010 1 次提交
    • A
      block: autoconvert trivial BKL users to private mutex · 2a48fc0a
      Arnd Bergmann 提交于
      The block device drivers have all gained new lock_kernel
      calls from a recent pushdown, and some of the drivers
      were already using the BKL before.
      
      This turns the BKL into a set of per-driver mutexes.
      Still need to check whether this is safe to do.
      
      file=$1
      name=$2
      if grep -q lock_kernel ${file} ; then
          if grep -q 'include.*linux.mutex.h' ${file} ; then
                  sed -i '/include.*<linux\/smp_lock.h>/d' ${file}
          else
                  sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file}
          fi
          sed -i ${file} \
              -e "/^#include.*linux.mutex.h/,$ {
                      1,/^\(static\|int\|long\)/ {
                           /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex);
      
      } }"  \
          -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \
          -e '/[      ]*cycle_kernel_lock();/d'
      else
          sed -i -e '/include.*\<smp_lock.h\>/d' ${file}  \
                      -e '/cycle_kernel_lock()/d'
      fi
      Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      2a48fc0a
  19. 16 9月, 2010 1 次提交
    • A
      scsi: autoconvert trivial BKL users to private mutex · c45d15d2
      Arnd Bergmann 提交于
      All these files use the big kernel lock in a trivial
      way to serialize their private file operations,
      typically resulting from an earlier semi-automatic
      pushdown from VFS.
      
      None of these drivers appears to want to lock against
      other code, and they all use the BKL as the top-level
      lock in their file operations, meaning that there
      is no lock-order inversion problem.
      
      Consequently, we can remove the BKL completely,
      replacing it with a per-file mutex in every case.
      Using a scripted approach means we can avoid
      typos.
      
      file=$1
      name=$2
      if grep -q lock_kernel ${file} ; then
          if grep -q 'include.*linux.mutex.h' ${file} ; then
                  sed -i '/include.*<linux\/smp_lock.h>/d' ${file}
          else
                  sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file}
          fi
          sed -i ${file} \
              -e "/^#include.*linux.mutex.h/,$ {
                      1,/^\(static\|int\|long\)/ {
                           /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex);
      
      } }"  \
          -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \
          -e '/[      ]*cycle_kernel_lock();/d'
      else
          sed -i -e '/include.*\<smp_lock.h\>/d' ${file}  \
                      -e '/cycle_kernel_lock()/d'
      fi
      Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      Cc: linux-scsi@vger.kernel.org
      Cc: "James E.J. Bottomley" <James.Bottomley@suse.de>
      c45d15d2
  20. 06 9月, 2010 1 次提交
  21. 15 8月, 2010 2 次提交
  22. 11 8月, 2010 8 次提交
  23. 08 8月, 2010 1 次提交
    • A
      scsi/i2o: restore ioctl changes · 2daa672b
      Arnd Bergmann 提交于
      This restores the changes from "scsi/i2o_block: cleanup ioctl
      handling", which accidentally got reverted.
      
      Origignal changelog:
            This fixes the ioctl function of the i2o_block driver, which
            has multiple problems:
      
            * The BLKI2OSRSTRAT and BLKI2OSWSTRAT commands always return
              -ENOTTY on success, where they should return 0.
            * Support for 32 bit compat is missing
            * The driver should use the .ioctl function and because
              .locked_ioctl is going away.
      
            The use of the big kernel lock remains for now, but gets
            made explictit in the ioctl function.
      Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
      2daa672b
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