diff options
| author | Sunil Mushran <sunil.mushran@oracle.com> | 2007-01-29 15:44:27 -0800 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-02-07 12:10:39 -0800 |
| commit | 0dd82141b236ce36253e3056c6068ee3d5732196 (patch) | |
| tree | 51c4c4746ffa390d4dba6a342aeaa526a35cb4eb | |
| parent | e4968476a9bc5a6b30076076b4f3ce3e692e0d79 (diff) | |
ocfs2_dlm: Add timeout to dlm join domain
Currently the ocfs2 dlm has no timeout during dlm join domain. While this is
not a problem in normal operation, this does become an issue if, say, the
other node is refusing to let the node join the domain because of a stuck
recovery. This patch adds a 90 sec timeout.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| -rw-r--r-- | fs/ocfs2/dlm/dlmdomain.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index e8ecf8c3dbe7..6087c4749fee 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -1264,6 +1264,8 @@ bail: static int dlm_join_domain(struct dlm_ctxt *dlm) { int status; + unsigned int backoff; + unsigned int total_backoff = 0; BUG_ON(!dlm); @@ -1295,18 +1297,27 @@ static int dlm_join_domain(struct dlm_ctxt *dlm) } do { - unsigned int backoff; status = dlm_try_to_join_domain(dlm); /* If we're racing another node to the join, then we * need to back off temporarily and let them * complete. */ +#define DLM_JOIN_TIMEOUT_MSECS 90000 if (status == -EAGAIN) { if (signal_pending(current)) { status = -ERESTARTSYS; goto bail; } + if (total_backoff > + msecs_to_jiffies(DLM_JOIN_TIMEOUT_MSECS)) { + status = -ERESTARTSYS; + mlog(ML_NOTICE, "Timed out joining dlm domain " + "%s after %u msecs\n", dlm->name, + jiffies_to_msecs(total_backoff)); + goto bail; + } + /* * <chip> After you! * <dale> No, after you! @@ -1316,6 +1327,7 @@ static int dlm_join_domain(struct dlm_ctxt *dlm) */ backoff = (unsigned int)(jiffies & 0x3); backoff *= DLM_DOMAIN_BACKOFF_MS; + total_backoff += backoff; mlog(0, "backoff %d\n", backoff); msleep(backoff); } |