diff options
| -rw-r--r-- | fs/nfs/nfs4_fs.h | 7 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 2 | ||||
| -rw-r--r-- | fs/nfs/nfs4state.c | 21 |
3 files changed, 26 insertions, 4 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 76eda46b5a17..a4e7b3feef8f 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -94,12 +94,18 @@ struct nfs4_state_owner { spinlock_t so_lock; atomic_t so_count; + unsigned long so_flags; struct list_head so_states; struct list_head so_delegations; struct nfs_seqid_counter so_seqid; struct rpc_sequence so_sequence; }; +enum { + NFS_OWNER_RECLAIM_REBOOT, + NFS_OWNER_RECLAIM_NOGRACE +}; + /* * struct nfs4_state maintains the client-side state for a given * (state_owner,inode) tuple (OPEN) or state_owner (LOCK). @@ -166,6 +172,7 @@ struct nfs4_exception { }; struct nfs4_state_recovery_ops { + int owner_flag_bit; int state_flag_bit; int (*recover_open)(struct nfs4_state_owner *, struct nfs4_state *); int (*recover_lock)(struct nfs4_state *, struct file_lock *); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 780ba004b3dd..019c8d67e145 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3690,12 +3690,14 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, } struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops = { + .owner_flag_bit = NFS_OWNER_RECLAIM_REBOOT, .state_flag_bit = NFS_STATE_RECLAIM_REBOOT, .recover_open = nfs4_open_reclaim, .recover_lock = nfs4_lock_reclaim, }; struct nfs4_state_recovery_ops nfs4_nograce_recovery_ops = { + .owner_flag_bit = NFS_OWNER_RECLAIM_NOGRACE, .state_flag_bit = NFS_STATE_RECLAIM_NOGRACE, .recover_open = nfs4_open_expired, .recover_lock = nfs4_lock_expired, diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index a780518c5c3f..7dcca23167dd 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -832,6 +832,7 @@ static int nfs4_state_mark_reclaim_reboot(struct nfs_client *clp, struct nfs4_st clear_bit(NFS_STATE_RECLAIM_REBOOT, &state->flags); return 0; } + set_bit(NFS_OWNER_RECLAIM_REBOOT, &state->owner->so_flags); set_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state); return 1; } @@ -840,6 +841,7 @@ static int nfs4_state_mark_reclaim_nograce(struct nfs_client *clp, struct nfs4_s { set_bit(NFS_STATE_RECLAIM_NOGRACE, &state->flags); clear_bit(NFS_STATE_RECLAIM_REBOOT, &state->flags); + set_bit(NFS_OWNER_RECLAIM_NOGRACE, &state->owner->so_flags); set_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state); return 1; } @@ -1043,14 +1045,25 @@ static int nfs4_do_reclaim(struct nfs_client *clp, const struct nfs4_state_recov struct rb_node *pos; int status = 0; - /* Note: list is protected by exclusive lock on cl->cl_sem */ +restart: + spin_lock(&clp->cl_lock); for (pos = rb_first(&clp->cl_state_owners); pos != NULL; pos = rb_next(pos)) { struct nfs4_state_owner *sp = rb_entry(pos, struct nfs4_state_owner, so_client_node); + if (!test_and_clear_bit(ops->owner_flag_bit, &sp->so_flags)) + continue; + atomic_inc(&sp->so_count); + spin_unlock(&clp->cl_lock); status = nfs4_reclaim_open_state(sp, ops); - if (status < 0) - break; + if (status < 0) { + set_bit(ops->owner_flag_bit, &sp->so_flags); + nfs4_put_state_owner(sp); + nfs4_recovery_handle_error(clp, status); + return status; + } + nfs4_put_state_owner(sp); + goto restart; } - nfs4_recovery_handle_error(clp, status); + spin_unlock(&clp->cl_lock); return status; } |