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svcrdma: Use standard Linux lists for context cache

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Replace the one-off linked list implementation used to implement the
context cache with the standard Linux list_head lists. Add a context
counter to catch resource leaks. A WARN_ON will be added later to
ensure that we've freed all contexts.

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
This commit is contained in:
Tom Tucker
2008-04-30 20:44:39 -05:00
parent 02e7452de7
commit 8740767376
2 changed files with 29 additions and 23 deletions
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5
include/linux/sunrpc/svc_rdma.h
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@ -72,7 +72,7 @@ extern atomic_t rdma_stat_sq_prod;
*/
struct svc_rdma_op_ctxt {
struct svc_rdma_op_ctxt *read_hdr;
struct svc_rdma_op_ctxt *next;
struct list_head free_list;
struct xdr_buf arg;
struct list_head dto_q;
enum ib_wr_opcode wr_op;
@ -104,7 +104,8 @@ struct svcxprt_rdma {
struct ib_pd *sc_pd;
struct svc_rdma_op_ctxt *sc_ctxt_head;
atomic_t sc_ctxt_used;
struct list_head sc_ctxt_free;
int sc_ctxt_cnt;
int sc_ctxt_bump;
int sc_ctxt_max;