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  1. 05 8月, 2008 3 次提交
    • N
      Fail safely when trying to grow an array with a write-intent bitmap. · dba034ee
      由 NeilBrown 提交于 
      We cannot currently change the size of a write-intent bitmap.
So if we change the size of an array which has such a bitmap, it
tries to set bits beyond the end of the bitmap.

For now, simply reject any request to change the size of an array
which has a bitmap.  mdadm can remove the bitmap and add a new one
after the array has changed size.
Signed-off-by: NNeilBrown <neilb@suse.de>
      dba034ee
    • N
      Restore force switch of md array to readonly at reboot time. · 2b25000b
      由 NeilBrown 提交于 
      A recent patch allowed do_md_stop to know whether it was being called
via an ioctl or not, and thus where to allow for an extra open file
descriptor when checking if it is in use.
This broke then switch to readonly performed by the shutdown notifier,
which needs to work even when the array is still (apparently) active
(as md doesn't get told when the filesystem becomes readonly).

So restore this feature by pretending that there can be lots of
file descriptors open, but we still want do_md_stop to switch to
readonly.
Signed-off-by: NNeilBrown <neilb@suse.de>
      2b25000b
    • N
      Make writes to md/safe_mode_delay immediately effective. · 19052c0e
      由 NeilBrown 提交于 
      If we reduce the 'safe_mode_delay', it could still wait for the old
delay to completely expire before doing anything about safe_mode.
Thus the effect if the change is delayed.

To make the effect more immediate, run the timeout function
immediately if the delay was reduced.  This may cause it to run
slightly earlier that required, but that is the safer option.
Signed-off-by: NNeilBrown <neilb@suse.de>
      19052c0e
  3. 02 8月, 2008 37 次提交