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Song Liu authored
Add the following two macros for special roles: spare and faulty MD_DISK_ROLE_SPARE 0xffff MD_DISK_ROLE_FAULTY 0xfffe Add MD_DISK_ROLE_MAX 0xff00 as the maximal possible regular role, and minimal value of special role. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: NeilBrown <neilb@suse.com>
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