1. 06 Nov, 2012 1 commit
    • Shaohua Li's avatar
      block CFQ: avoid moving request to different queue · 3d106fba
      Shaohua Li authored
      request is queued in cfqq->fifo list. Looks it's possible we are moving a
      request from one cfqq to another in request merge case. In such case, adjusting
      the fifo list order doesn't make sense and is impossible if we don't iterate
      the whole fifo list.
      
      My test does hit one case the two cfqq are different, but didn't cause kernel
      crash, maybe it's because fifo list isn't used frequently. Anyway, from the
      code logic, this is buggy.
      
      I thought we can re-enable the recusive merge logic after this is fixed.
      Signed-off-by: default avatarShaohua Li <shli@fusionio.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      3d106fba
  2. 04 Nov, 2012 1 commit
  3. 03 Nov, 2012 15 commits
  4. 02 Nov, 2012 23 commits