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8db4a1d146
Move mirror_array's dss_count initialization and dss allocation to
ff_layout_alloc_mirror(), just before the loop that initializes each
nfs4_ff_layout_ds_stripe's nfs_file_localio.
Also handle NULL return from kcalloc() and remove one level of indent
in ff_layout_alloc_mirror().
This commit fixes dangling nfsd_serv refcount issues seen when using
NFS LOCALIO and then attempting to stop the NFSD service.
Fixes: 20b1d75fb8 ("NFSv4/flexfiles: Add support for striped layouts")
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>