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| author | Sunil Mushran <sunil.mushran@oracle.com> | 2010-01-26 02:58:30 +0100 |
|---|---|---|
| committer | Joel Becker <joel.becker@oracle.com> | 2010-02-03 03:56:34 +0100 |
| commit | cd34edd8cf80b507bb84b3f0c2988fe05099ffb5 (patch) | |
| tree | f6efa7606dbddb08938b1a887ab04e3ef2c6e916 | |
| parent | ocfs2: Add parenthesis to wrap the check for O_DIRECT. (diff) | |
| download | linux-cd34edd8cf80b507bb84b3f0c2988fe05099ffb5.tar.xz linux-cd34edd8cf80b507bb84b3f0c2988fe05099ffb5.zip | |
ocfs2/dlm: Handle EAGAIN for compatibility - v2
Mainline commit aad1b15310b9bcd59fa81ab8f2b1513b59553ea8 made the
dlm_begin_reco_handler() return -EAGAIN instead of EAGAIN.
As this error is transmitted over the wire, we want the receiver,
dlm_send_begin_reco_message(), to understand both the older EAGAIN and
the newer -EAGAIN, to allow rolling upgrade of the cluster nodes.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
| -rw-r--r-- | fs/ocfs2/dlm/dlmrecovery.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index cfb2ae9ab538..ad712211d4ea 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -2639,7 +2639,13 @@ retry: "begin reco msg (%d)\n", dlm->name, nodenum, ret); ret = 0; } - if (ret == -EAGAIN) { + + /* + * Prior to commit aad1b15310b9bcd59fa81ab8f2b1513b59553ea8, + * dlm_begin_reco_handler() returned EAGAIN and not -EAGAIN. + * We are handling both for compatibility reasons. + */ + if (ret == -EAGAIN || ret == EAGAIN) { mlog(0, "%s: trying to start recovery of node " "%u, but node %u is waiting for last recovery " "to complete, backoff for a bit\n", dlm->name, |