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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-01-23 21:18:18 +0100 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-01-25 15:36:21 +0100 |
| commit | 810d82e6830100615e7481813a862d26ffcff6bd (patch) | |
| tree | 800222904c927e881b0d469f0b2f3de229ba132d /fs/nfs/nfs4session.h | |
| parent | NFSv4.x: Fix wraparound issues when validing the callback sequence id (diff) | |
| download | linux-810d82e6830100615e7481813a862d26ffcff6bd.tar.xz linux-810d82e6830100615e7481813a862d26ffcff6bd.zip | |
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.h | 8 |
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); |