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Re: CVS commit: src/sys
On Apr 27, 2013, at 12:27 AM, Michael van Elst <mlelstv%netbsd.org@localhost>
> Module Name: src
> Committed By: mlelstv
> Date: Fri Apr 26 22:27:17 UTC 2013
> Modified Files:
> src/sys/kern: vfs_mount.c
> src/sys/sys: mount.h
> Log Message:
> Correct umount semantics to return EBUSY when a filesystem is busy
> instead of failing filesystem operations with EBUSY when attempting
> an umount.
> This fixes kern/38141.
Who did the review or where has it been discussed?
We now get a deadlock between mountlist_lock and mnt_unmounting,
seen between dounmount() and do_sys_sync() for example.
The lock order is mountlist_lock->mnt_unmounting, but dounmount()
locks in reverse direction.
Please fix or revert.
J. Hannken-Illjes - hannken%eis.cs.tu-bs.de@localhost - TU Braunschweig
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