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| author |   NeilBrown <neil@brown.name> | 2019-01-06 21:06:25 +1100 |
|---|---|---|
| committer |   Mike Snitzer <snitzer@redhat.com> | 2019-03-05 14:48:52 -0500 |
| commit | 0bdb50c531f7377a9da80d3ce2d61f389c84cb30 (patch) | |
| tree | 73c7dc72106541c696fa61e40c2484eddd443987 /drivers/md/dm-integrity.c | |
| parent | dm switch: use struct_size() in kzalloc() (diff) | |
| download | linux-dev-0bdb50c531f7377a9da80d3ce2d61f389c84cb30.tar.xz linux-dev-0bdb50c531f7377a9da80d3ce2d61f389c84cb30.zip | |
dm: fix to_sector() for 32bit
A dm-raid array with devices larger than 4GB won't assemble on
a 32 bit host since _check_data_dev_sectors() was added in 4.16.
This is because to_sector() treats its argument as an "unsigned long"
which is 32bits (4GB) on a 32bit host. Using "unsigned long long"
is more correct.
Kernels as early as 4.2 can have other problems due to to_sector()
being used on the size of a device.
Fixes: 0cf4503174c1 ("dm raid: add support for the MD RAID0 personality")
cc: stable@vger.kernel.org (v4.2+)
Reported-and-tested-by: Guillaume Perréal <gperreal@free.fr>
Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-integrity.c')
0 files changed, 0 insertions, 0 deletions