diff options
| author | Eric W. Biederman <[email protected]> | 2016-06-09 15:34:02 -0500 |
|---|---|---|
| committer | Eric W. Biederman <[email protected]> | 2016-06-23 15:41:57 -0500 |
| commit | a2982cc922c3068783eb9a1f77a5626a1ec36a1f (patch) | |
| tree | 61ccc6ad01f8804d5290ae4565ba8d4238bf648a /tools/perf/scripts/python/stackcollapse.py | |
| parent | 3ee690143c3c99f6c0e83f08ff17556890bc6027 (diff) | |
vfs: Generalize filesystem nodev handling.
Introduce a function may_open_dev that tests MNT_NODEV and a new
superblock flab SB_I_NODEV. Use this new function in all of the
places where MNT_NODEV was previously tested.
Add the new SB_I_NODEV s_iflag to proc, sysfs, and mqueuefs as those
filesystems should never support device nodes, and a simple superblock
flags makes that very hard to get wrong. With SB_I_NODEV set if any
device nodes somehow manage to show up on on a filesystem those
device nodes will be unopenable.
Acked-by: Seth Forshee <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions