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Author SHA1 Message Date
Justin Cormack
3a1ab5b479 In the case of remounting with changed data, need to call mount
The case where we are trying to do a remount with changed filesystem specific options was missing,
we need to call `mount` as well here to change those options.

See #33844 for where we need this, as we change `tmpfs` options.

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
2017-07-13 15:48:58 +01:00
Steven Hartland
b3b14b97b1 Fix linux mount calls not applying propagation type changes
Propagation type changes must be done as a separate call, in the
same way as read only bind mounts.

To fix this:
1. Ensure propagation type change flags aren't included in other calls.
2. Apply propagation type change in a separate call.

Also:
* Make it clear which parameters are ignored by passing them as empty.
* Add tests to ensure Mount options are applied correctly.

Fixes #30415

Signed-off-by: Steven Hartland <steven.hartland@multiplay.co.uk>
2017-02-15 14:15:09 +00:00