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| author | Rong Zeng <rongzeng@us.ibm.com> | 2014-06-01 13:04:48 -0400 |
|---|---|---|
| committer | Steve Dickson <steved@redhat.com> | 2014-06-01 13:10:02 -0400 |
| commit | a126e718ab931963ca877fd11203f873fd50811f (patch) | |
| tree | bc445e1cdf15217adfce6b0257720fc4850e162a /utils/statd/callback.c | |
| parent | 548bbdc49b1f5dfbe7ba75d20c5791652dfeb125 (diff) | |
| download | nfs-utils-a126e718ab931963ca877fd11203f873fd50811f.tar.gz nfs-utils-a126e718ab931963ca877fd11203f873fd50811f.tar.xz nfs-utils-a126e718ab931963ca877fd11203f873fd50811f.zip | |
statd: Adding callback on sm_notify
This patch adds a callback for incoming sm_notify to better handle
stale lock issue in client crash recovery in HA-NFS environment
1. "sm-notify" - callout name
2. monitored client name as in the SM_NOTIFY request
3. IP of the sender of the SM_NOITFY request.
4. state value in the SM_NOTIFY request
This new interface can be used by different HA-NFS product
in its specific configuration and environment to
recover from the client crash and stale lock scenarios.
Signed-off-by: Rong Zeng <rongzeng@us.ibm.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
Diffstat (limited to 'utils/statd/callback.c')
| -rw-r--r-- | utils/statd/callback.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/utils/statd/callback.c b/utils/statd/callback.c index d1cc139..bb7c590 100644 --- a/utils/statd/callback.c +++ b/utils/statd/callback.c @@ -10,11 +10,13 @@ #include <config.h> #endif +#include <unistd.h> #include <netdb.h> #include "rpcmisc.h" #include "statd.h" #include "notlist.h" +#include "ha-callout.h" /* Callback notify list. */ /* notify_list *cbnl = NULL; ... never used */ @@ -87,6 +89,13 @@ sm_notify_1_svc(struct stat_chge *argp, struct svc_req *rqstp) xlog(D_CALL, "Received SM_NOTIFY from %s, state: %d", argp->mon_name, argp->state); + if (!statd_present_address(sap, ip_addr, sizeof(ip_addr))) { + xlog_warn("Unrecognized sender address"); + return ((void *) &result); + } + + ha_callout("sm-notify", argp->mon_name, ip_addr, argp->state); + /* quick check - don't bother if we're not monitoring anyone */ if (rtnl == NULL) { xlog_warn("SM_NOTIFY from %s while not monitoring any hosts", @@ -94,11 +103,6 @@ sm_notify_1_svc(struct stat_chge *argp, struct svc_req *rqstp) return ((void *) &result); } - if (!statd_present_address(sap, ip_addr, sizeof(ip_addr))) { - xlog_warn("Unrecognized sender address"); - return ((void *) &result); - } - /* okir change: statd doesn't remove the remote host from its * internal monitor list when receiving an SM_NOTIFY call from * it. Lockd will want to continue monitoring the remote host |