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Christoph Hellwig authored
disks_mutex is intended to serialize md_alloc. Extended it to also cover the kobject_uevent call and getting the sysfs dirent to help reducing error handling complexity. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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