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由 Peter Osterlund 提交于
When attempting to open the device for writing, only return -EROFS if the disc appears to be readable but not writable. Signed-off-by: NPeter Osterlund <petero2@telia.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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