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authorTrond Myklebust <trond.myklebust@primarydata.com>2016-01-23 15:18:18 -0500
committerTrond Myklebust <trond.myklebust@primarydata.com>2016-01-25 09:36:21 -0500
commit810d82e6830100615e7481813a862d26ffcff6bd (patch)
tree800222904c927e881b0d469f0b2f3de229ba132d /fs/nfs/nfs4session.h
parent5f83d86cf531d737ba2ca9c3cc500ff331fbd43e (diff)
NFSv4.x: Allow multiple callbacks in flight
Hook the callback channel into the same session management machinery as we use for the forward channel. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/nfs4session.h')
-rw-r--r--fs/nfs/nfs4session.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/nfs/nfs4session.h b/fs/nfs/nfs4session.h
index e3ea2c5324d6..5b51298d1d03 100644
--- a/fs/nfs/nfs4session.h
+++ b/fs/nfs/nfs4session.h
@@ -77,6 +77,8 @@ extern int nfs4_setup_slot_table(struct nfs4_slot_table *tbl,
unsigned int max_reqs, const char *queue);
extern void nfs4_shutdown_slot_table(struct nfs4_slot_table *tbl);
extern struct nfs4_slot *nfs4_alloc_slot(struct nfs4_slot_table *tbl);
+extern struct nfs4_slot *nfs4_lookup_slot(struct nfs4_slot_table *tbl, u32 slotid);
+extern bool nfs4_try_to_lock_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot);
extern void nfs4_free_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot);
extern void nfs4_slot_tbl_drain_complete(struct nfs4_slot_table *tbl);
bool nfs41_wake_and_assign_slot(struct nfs4_slot_table *tbl,
@@ -88,6 +90,12 @@ static inline bool nfs4_slot_tbl_draining(struct nfs4_slot_table *tbl)
return !!test_bit(NFS4_SLOT_TBL_DRAINING, &tbl->slot_tbl_state);
}
+static inline bool nfs4_test_locked_slot(const struct nfs4_slot_table *tbl,
+ u32 slotid)
+{
+ return !!test_bit(slotid, tbl->used_slots);
+}
+
#if defined(CONFIG_NFS_V4_1)
extern void nfs41_set_target_slotid(struct nfs4_slot_table *tbl,
u32 target_highest_slotid);