Ryusuke Konishi fe5f171bb2
nilfs2: fix potential hang in nilfs_error on errors=remount-ro ...
nilfs_error() calls nilfs_detach_segment_constructor() if
errors=remount-ro option is specified, and this may lead to a hang due
to recursive locking of, for instance, nilfs->ns_segctor_sem and
others.
In this case, detaching segment constructor is not necessary because
read-only flag is set to the filesystem and further writes are
blocked.
This fixes the potential hang issue by removing the
nilfs_detach_segment_constructor() call from nilfs_error.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp >
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Ryusuke Konishi
fe5f171bb2