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| author | Patrick Caulfield <pcaulfie@redhat.com> | 2006-11-06 08:53:28 +0000 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2006-11-06 09:28:01 -0500 |
| commit | e2de7f565521a76fbbb927f701c5a1d381c71a93 (patch) | |
| tree | 0068cf0d624045eedb91b0452a89dc691871641b /fs/dlm | |
| parent | ba542e3b92f9ea7c482ae56b68b9122eebc53a39 (diff) | |
| download | linux-e2de7f565521a76fbbb927f701c5a1d381c71a93.tar.gz linux-e2de7f565521a76fbbb927f701c5a1d381c71a93.tar.bz2 linux-e2de7f565521a76fbbb927f701c5a1d381c71a93.zip | |
[DLM] fix oops in kref_put when removing a lockspace
Now that the lockspace struct is freed when the last sysfs object is released
this patch prevents use of that lockspace by sysfs. We attempt to re-get the
lockspace from the lockspace list and fail the request if it has been removed.
Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/dlm')
| -rw-r--r-- | fs/dlm/lockspace.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c index 499ee1156365..f8842ca443c2 100644 --- a/fs/dlm/lockspace.c +++ b/fs/dlm/lockspace.c @@ -43,6 +43,10 @@ static ssize_t dlm_control_store(struct dlm_ls *ls, const char *buf, size_t len) ssize_t ret = len; int n = simple_strtol(buf, NULL, 0); + ls = dlm_find_lockspace_local(ls->ls_local_handle); + if (!ls) + return -EINVAL; + switch (n) { case 0: dlm_ls_stop(ls); @@ -53,6 +57,7 @@ static ssize_t dlm_control_store(struct dlm_ls *ls, const char *buf, size_t len) default: ret = -EINVAL; } + dlm_put_lockspace(ls); return ret; } |