1. 09 Jun, 2009 39 commits
  2. 08 Jun, 2009 1 commit
    • Linus Torvalds's avatar
      async: Fix lack of boot-time console due to insufficient synchronization · 3af968e0
      Linus Torvalds authored
      Our async work synchronization was broken by "async: make sure
      independent async domains can't accidentally entangle" (commit
      d5a877e8), because it would report
      the wrong lowest active async ID when there was both running and
      pending async work.
      
      This caused things like no being able to read the root filesystem,
      resulting in missing console devices and inability to run 'init',
      causing a boot-time panic.
      
      This fixes it by properly returning the lowest pending async ID: if
      there is any running async work, that will have a lower ID than any
      pending work, and we should _not_ look at the pending work list.
      
      There were alternative patches from Jaswinder and James, but this one
      also cleans up the code by removing the pointless 'ret' variable and
      the unnecesary testing for an empty list around 'for_each_entry()' (if
      the list is empty, the for_each_entry() thing just won't execute).
      
      Fixes-bug: http://bugzilla.kernel.org/show_bug.cgi?id=13474Reported-and-tested-by: default avatarChris Clayton <chris2553@googlemail.com>
      Cc: Jaswinder Singh Rajput <jaswinder@kernel.org>
      Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
      Cc: Arjan van de Ven <arjan@linux.intel.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      3af968e0