| commit | 5f0d9e03e7e0792fbd36ba9fb9859f0ef7956a20 | |
| author | Richard Weinberger <richard@nod.at> | |
| Wed, 2 Nov 2011 12:17:27 +0000 (2 13:17 +0100) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Fri, 11 Nov 2011 17:36:19 +0000 (11 09:36 -0800) | ||
| tree | cd9ef9985579e0a316808981ba2d00c834eff8d2 | treesnapshot (tar.gz zip) |
| parent | 73e2fc5d34007574d25d00e7088bbd42e988bb3e | commitdiff |
um: fix ubd cow size
commit 8535639810e578960233ad39def3ac2157b0c3ec upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 8535639810e578960233ad39def3ac2157b0c3ec upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| arch/um/drivers/ubd_kern.c | diffblobblamehistory |