diff options
| author | Dan Williams <[email protected]> | 2016-11-16 17:00:38 +0000 |
|---|---|---|
| committer | Dan Williams <[email protected]> | 2016-11-16 17:00:38 +0000 |
| commit | 4cb19355ea19995941ccaad115dbfac6b75215ca (patch) | |
| tree | ec4bbe77017ce2002940f2e9c9b502a7abf648d4 /lib/debugobjects.c | |
| parent | device-dax: check devm_nsio_enable() return value (diff) | |
| download | kernel-4cb19355ea19995941ccaad115dbfac6b75215ca.tar.gz kernel-4cb19355ea19995941ccaad115dbfac6b75215ca.zip | |
device-dax: fail all private mapping attempts
The device-dax implementation originally tried to be tricky and allow
private read-only mappings, but in the process allowed writable
MAP_PRIVATE + MAP_NORESERVE mappings. For simplicity and predictability
just fail all private mapping attempts since device-dax memory is
statically allocated and will never support overcommit.
Cc: <[email protected]>
Cc: Dave Hansen <[email protected]>
Fixes: dee410792419 ("/dev/dax, core: file operations and dax-mmap")
Reported-by: Pawel Lebioda <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
Diffstat (limited to 'lib/debugobjects.c')
0 files changed, 0 insertions, 0 deletions