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| author |   Andy Adamson <andros@netapp.com> | 2016-09-09 09:22:25 -0400 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2016-09-19 13:08:36 -0400 |
| commit | 39e5d2df959dd4aea81fa33d765d2a5cc67a0512 (patch) | |
| tree | 6766a5080986cb7f416638d12494b2f5761a5d16 /net/sunrpc/xprtmultipath.c | |
| parent | SUNRPC rpc_clnt_xprt_switch_add_xprt (diff) | |
| download | linux-dev-39e5d2df959dd4aea81fa33d765d2a5cc67a0512.tar.xz linux-dev-39e5d2df959dd4aea81fa33d765d2a5cc67a0512.zip | |
SUNRPC search xprt switch for sockaddr
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/xprtmultipath.c')
| -rw-r--r-- | net/sunrpc/xprtmultipath.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/net/sunrpc/xprtmultipath.c b/net/sunrpc/xprtmultipath.c index 66c9d63f4797..ae92a9e9ba52 100644 --- a/net/sunrpc/xprtmultipath.c +++ b/net/sunrpc/xprtmultipath.c @@ -15,6 +15,7 @@ #include <asm/cmpxchg.h> #include <linux/spinlock.h> #include <linux/sunrpc/xprt.h> +#include <linux/sunrpc/addr.h> #include <linux/sunrpc/xprtmultipath.h> typedef struct rpc_xprt *(*xprt_switch_find_xprt_t)(struct list_head *head, @@ -49,7 +50,8 @@ void rpc_xprt_switch_add_xprt(struct rpc_xprt_switch *xps, if (xprt == NULL) return; spin_lock(&xps->xps_lock); - if (xps->xps_net == xprt->xprt_net || xps->xps_net == NULL) + if ((xps->xps_net == xprt->xprt_net || xps->xps_net == NULL) && + !rpc_xprt_switch_has_addr(xps, (struct sockaddr *)&xprt->addr)) xprt_switch_add_xprt_locked(xps, xprt); spin_unlock(&xps->xps_lock); } @@ -232,6 +234,26 @@ struct rpc_xprt *xprt_iter_current_entry(struct rpc_xprt_iter *xpi) return xprt_switch_find_current_entry(head, xpi->xpi_cursor); } +bool rpc_xprt_switch_has_addr(struct rpc_xprt_switch *xps, + const struct sockaddr *sap) +{ + struct list_head *head; + struct rpc_xprt *pos; + + if (xps == NULL || sap == NULL) + return false; + + head = &xps->xps_xprt_list; + list_for_each_entry_rcu(pos, head, xprt_switch) { + if (rpc_cmp_addr_port(sap, (struct sockaddr *)&pos->addr)) { + pr_info("RPC: addr %s already in xprt switch\n", + pos->address_strings[RPC_DISPLAY_ADDR]); + return true; + } + } + return false; +} + static struct rpc_xprt *xprt_switch_find_next_entry(struct list_head *head, const struct rpc_xprt *cur) |