Re: [PATCH] ncpfs: fix rmdir returns Device or resource busy

From: Ben Hutchings
Date: Tue Jun 25 2013 - 21:05:55 EST


On Wed, 2013-06-19 at 10:30 +0100, Luis Henriques wrote:
> Dave Chiluk <chiluk@xxxxxxxxxxxxx> writes:
>
> > 1d2ef5901483004d74947bbf78d5146c24038fe7 caused a regression in ncpfs such that
> > directories could no longer be removed. This was because ncp_rmdir checked
> > to see if a dentry could be unhashed before allowing it to be removed. Since
> > 1d2ef5901483004d74947bbf78d5146c24038fe7 introduced a change that incremented
> > dentry->d_count causing it to always be greater than 1 unhash would always
> > fail. Thus causing the error path in ncp_rmdir to always be taken. Removing
> > this error path is safe as unhashing is still accomplished by calls to dput
> > from vfs_rmdir.
>
> Stable kernels starting with 3.0 also contain the offending commit, so
> I believe this patch should be applied to stable kernels as well.
>
> Upstream commit is 698b8223631472bf982ed570b0812faa61955683.

Queued up for 3.2, thanks.

Ben.

--
Ben Hutchings
Knowledge is power. France is bacon.

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