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| author |   Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-11-20 19:49:20 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-12-06 00:30:42 +0100 |
| commit | 87dda67e7386ba7d2164391ea58b34e028d8157b (patch) | |
| tree | 9f8740fa1631a5bb5d3163d86783a764d542cbc6 /fs/nfs/nfs4state.c | |
| parent | NFSv4.1: Support dynamic resizing of the session slot table (diff) | |
| download | linux-dev-87dda67e7386ba7d2164391ea58b34e028d8157b.tar.xz linux-dev-87dda67e7386ba7d2164391ea58b34e028d8157b.zip | |
NFSv4.1: Allow SEQUENCE to resize the slot table on the fly
Instead of an array of slots, use a singly linked list of slots that
can be dynamically appended to or shrunk.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4state.c')
| -rw-r--r-- | fs/nfs/nfs4state.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 1b7fa73c9436..c14b2c7ac8a7 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -2025,29 +2025,15 @@ out: static int nfs4_recall_slot(struct nfs_client *clp) { struct nfs4_slot_table *fc_tbl; - struct nfs4_slot *new, *old; - int i; + u32 new_size; if (!nfs4_has_session(clp)) return 0; nfs4_begin_drain_session(clp); - fc_tbl = &clp->cl_session->fc_slot_table; - new = nfs4_alloc_slots(fc_tbl, fc_tbl->target_highest_slotid + 1, GFP_NOFS); - if (!new) - return -ENOMEM; - spin_lock(&fc_tbl->slot_tbl_lock); - for (i = 0; i <= fc_tbl->target_highest_slotid; i++) - new[i].seq_nr = fc_tbl->slots[i].seq_nr; - old = fc_tbl->slots; - fc_tbl->slots = new; - fc_tbl->max_slots = fc_tbl->target_highest_slotid + 1; - fc_tbl->max_slotid = fc_tbl->target_highest_slotid; - clp->cl_session->fc_attrs.max_reqs = fc_tbl->max_slots; - spin_unlock(&fc_tbl->slot_tbl_lock); - - kfree(old); - return 0; + fc_tbl = &clp->cl_session->fc_slot_table; + new_size = fc_tbl->server_highest_slotid + 1; + return nfs4_resize_slot_table(fc_tbl, new_size, 1); } static int nfs4_bind_conn_to_session(struct nfs_client *clp) |