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| author | Sunil Mushran <sunil.mushran@oracle.com> | 2011-07-24 10:32:54 -0700 |
|---|---|---|
| committer | Sunil Mushran <sunil.mushran@oracle.com> | 2011-07-24 10:32:54 -0700 |
| commit | 3ba169ccec1c5ad0f678e04fd29b990197fdfe79 (patch) | |
| tree | 44aa0576afaf198a717e12b0450f45619e2c5cc4 /fs/ocfs2/cluster/tcp.c | |
| parent | bb570a5d9e74f71d32751823052db4a97d6a5e7c (diff) | |
| download | linux-3ba169ccec1c5ad0f678e04fd29b990197fdfe79.tar.gz | |
ocfs2/cluster: Add new function o2net_fill_node_map()
Patch adds function o2net_fill_node_map() to return the bitmap of nodes that
it is connected to. This bitmap is also accessible by the user via the debugfs
file, /sys/kernel/debug/o2net/connected_nodes.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Diffstat (limited to 'fs/ocfs2/cluster/tcp.c')
| -rw-r--r-- | fs/ocfs2/cluster/tcp.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c index 6e97895ecf24aa..ae13d5ca7908cd 100644 --- a/fs/ocfs2/cluster/tcp.c +++ b/fs/ocfs2/cluster/tcp.c @@ -1034,6 +1034,25 @@ static int o2net_tx_can_proceed(struct o2net_node *nn, return ret; } +/* Get a map of all nodes to which this node is currently connected to */ +void o2net_fill_node_map(unsigned long *map, unsigned bytes) +{ + struct o2net_sock_container *sc; + int node, ret; + + BUG_ON(bytes < (BITS_TO_LONGS(O2NM_MAX_NODES) * sizeof(unsigned long))); + + memset(map, 0, bytes); + for (node = 0; node < O2NM_MAX_NODES; ++node) { + o2net_tx_can_proceed(o2net_nn_from_num(node), &sc, &ret); + if (!ret) { + set_bit(node, map); + sc_put(sc); + } + } +} +EXPORT_SYMBOL_GPL(o2net_fill_node_map); + int o2net_send_message_vec(u32 msg_type, u32 key, struct kvec *caller_vec, size_t caller_veclen, u8 target_node, int *status) { |