1. 26 10月, 2012 2 次提交
    • A
      UBIFS: fix mounting problems after power cuts · a28ad42a
      Artem Bityutskiy 提交于
      This is a bugfix for a problem with the following symptoms:
      
      1. A power cut happens
      2. After reboot, we try to mount UBIFS
      3. Mount fails with "No space left on device" error message
      
      UBIFS complains like this:
      
      UBIFS error (pid 28225): grab_empty_leb: could not find an empty LEB
      
      The root cause of this problem is that when we mount, not all LEBs are
      categorized. Only those which were read are. However, the
      'ubifs_find_free_leb_for_idx()' function assumes that all LEBs were
      categorized and 'c->freeable_cnt' is valid, which is a false assumption.
      
      This patch fixes the problem by teaching 'ubifs_find_free_leb_for_idx()'
      to always fall back to LPT scanning if no freeable LEBs were found.
      
      This problem was reported by few people in the past, but Brent Taylor
      was able to reproduce it and send me a flash image which cannot be mounted,
      which made it easy to hunt the bug. Kudos to Brent.
      Reported-by: NBrent Taylor <motobud@gmail.com>
      Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
      Cc: stable@vger.kernel.org
      a28ad42a
    • A
      UBIFS: introduce categorized lprops counter · 98a1eebd
      Artem Bityutskiy 提交于
      This commit is a preparation for a subsequent bugfix. We introduce a
      counter for categorized lprops.
      Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
      Cc: stable@vger.kernel.org
      98a1eebd
  2. 21 10月, 2012 2 次提交
  3. 20 10月, 2012 36 次提交