Re: [PATCH] md: Avoid a deadlock when removing a device from an md array via sysfs.

On Monday April 2, [EMAIL PROTECTED] wrote: > > What guarantees that *rdev is still valid when delayed_delete() runs? Because that is how kobjects and krefs work. There is an embedded refcount etc etc.. > > And what guarantees that the md module hasn't been rmmodded when > delayed_delete() tri

Re: [PATCH] md: Avoid a deadlock when removing a device from an md array via sysfs.

On Mon, 2 Apr 2007 17:44:17 +1000 NeilBrown <[EMAIL PROTECTED]> wrote: > (This patch should go in 2.6.21 as it fixes a recent regression - NB) > > A device can be removed from an md array via e.g. > echo remove > /sys/block/md3/md/dev-sde/state > > This will try to remove the 'dev-sde' subtree

[PATCH] md: Avoid a deadlock when removing a device from an md array via sysfs.

(This patch should go in 2.6.21 as it fixes a recent regression - NB) A device can be removed from an md array via e.g. echo remove > /sys/block/md3/md/dev-sde/state This will try to remove the 'dev-sde' subtree which will deadlock since commit e7b0d26a86943370c04d6833c6edba2a72a6e240 With t