diff options
| author | Mikulas Patocka <mpatocka@redhat.com> | 2013-12-05 17:33:29 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-20 10:45:10 -0500 |
| commit | d468a287d01c58db4769ddd30870eb3c8a9360b2 (patch) | |
| tree | 0eaac08e5b2f582e5099e8090e250afca4478071 /drivers/md/persistent-data | |
| parent | 89ec75229a591cd7a3f57c330dc0791b8646b112 (diff) | |
dm bufio: initialize read-only module parameters
commit 4cb57ab4a2e61978f3a9b7d4f53988f30d61c27f upstream.
Some module parameters in dm-bufio are read-only. These parameters
inform the user about memory consumption. They are not supposed to be
changed by the user.
However, despite being read-only, these parameters can be set on
modprobe or insmod command line, for example:
modprobe dm-bufio current_allocated_bytes=12345
The kernel doesn't expect that these variables can be non-zero at module
initialization and if the user sets them, it results in BUG.
This patch initializes the variables in the module init routine, so that
user-supplied values are ignored.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/md/persistent-data')
0 files changed, 0 insertions, 0 deletions