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17da35c541
nfs4_stat_to_errno() expects a NFSv4 error code as an argument and
returns a POSIX errno.
The problem is LOCALIO is passing nfs4_stat_to_errno() the POSIX errno
return values from filp->f_op->read_iter(), filp->f_op->write_iter()
and vfs_fsync_range().
So the POSIX errno that nfs_local_pgio_done() and
nfs_local_commit_done() are passing to nfs4_stat_to_errno() are
failing to match any NFSv4 error code, which results in
nfs4_stat_to_errno() defaulting ot returning -EREMOTEIO. This causes
assertions in upper layers due to -EREMOTEIO not being a valid NFSv4
error code.
Fix this by updating nfs_local_pgio_done() and nfs_local_commit_done()
to use the new errno_to_nfs4_stat() to map a POSIX errno to an NFSv4
error code.
Fixes: 70ba381e1a431 ("nfs: add LOCALIO support")
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>