diff options
| author | Jeff Mahoney <jeffm@suse.com> | 2006-06-26 00:27:25 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 09:58:35 -0700 |
| commit | 10da4f795f965f22039aa2930b6f80964aad3ee5 (patch) | |
| tree | 6f4bfd27cdcdad15b53df997476fae539383bf4a /lib/rbtree.c | |
| parent | 7ec75f254742766eb729f1d1024a5b4e6692fc5f (diff) | |
[PATCH] dm: add module ref counting
The reference counting on dm-mod is zero if no mapped devices are open. This
is incorrect, and can lead to an oops if the module is unloaded while mapped
devices exist.
This patch claims a reference to the module whenever a device is created, and
drops it again when the device is freed.
Devices must be removed before dm-mod is unloaded.
[akpm: too late for 2.6.17 - suitable for 2.6.17.x after it has settled]
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'lib/rbtree.c')
0 files changed, 0 insertions, 0 deletions