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authorRichard Weinberger <richard@nod.at>2011-11-02 13:17:27 +0100
committerRichard Weinberger <richard@nod.at>2011-11-02 14:15:42 +0100
commit8535639810e578960233ad39def3ac2157b0c3ec (patch)
tree519778b447082e802b42c2d6720475ca1cc7c96e /arch/um/Makefile
parent0d65ede0a605d6252acc5c8a9c536c4cd0211f3c (diff)
downloadop-kernel-dev-8535639810e578960233ad39def3ac2157b0c3ec.zip
op-kernel-dev-8535639810e578960233ad39def3ac2157b0c3ec.tar.gz
um: fix ubd cow size
ubd_file_size() cannot use ubd_dev->cow.file because at this time ubd_dev->cow.file is not initialized. Therefore, ubd_file_size() will always report a wrong disk size when COW files are used. Reading from /dev/ubd* would crash the kernel. We have to read the correct disk size from the COW file's backing file. Signed-off-by: Richard Weinberger <richard@nod.at> CC: stable@kernel.org
Diffstat (limited to 'arch/um/Makefile')
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