NFSD: Fault injection operations take a per-client forget function
The eventual goal is to forget state based on ip address, so it makes sense to call this function in a for-each-client loop until the correct amount of state is forgotten. I also use this patch as an opportunity to rename the forget function from "func()" to "forget()". Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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@ -13,29 +13,29 @@
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struct nfsd_fault_inject_op {
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struct nfsd_fault_inject_op {
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char *file;
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char *file;
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void (*func)(u64);
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u64 (*forget)(struct nfs4_client *, u64);
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};
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};
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static struct nfsd_fault_inject_op inject_ops[] = {
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static struct nfsd_fault_inject_op inject_ops[] = {
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{
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{
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.file = "forget_clients",
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.file = "forget_clients",
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.func = nfsd_forget_clients,
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.forget = nfsd_forget_client,
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},
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},
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{
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{
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.file = "forget_locks",
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.file = "forget_locks",
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.func = nfsd_forget_locks,
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.forget = nfsd_forget_client_locks,
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},
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},
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{
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{
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.file = "forget_openowners",
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.file = "forget_openowners",
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.func = nfsd_forget_openowners,
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.forget = nfsd_forget_client_openowners,
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},
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},
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{
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{
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.file = "forget_delegations",
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.file = "forget_delegations",
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.func = nfsd_forget_delegations,
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.forget = nfsd_forget_client_delegations,
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},
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},
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{
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{
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.file = "recall_delegations",
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.file = "recall_delegations",
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.func = nfsd_recall_delegations,
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.forget = nfsd_recall_client_delegations,
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},
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},
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};
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};
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@ -44,6 +44,7 @@ static struct dentry *debug_dir;
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static int nfsd_inject_set(void *op_ptr, u64 val)
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static int nfsd_inject_set(void *op_ptr, u64 val)
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{
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{
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u64 count = 0;
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struct nfsd_fault_inject_op *op = op_ptr;
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struct nfsd_fault_inject_op *op = op_ptr;
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if (val == 0)
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if (val == 0)
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@ -52,8 +53,9 @@ static int nfsd_inject_set(void *op_ptr, u64 val)
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printk(KERN_INFO "NFSD Fault Injection: %s (n = %llu)", op->file, val);
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printk(KERN_INFO "NFSD Fault Injection: %s (n = %llu)", op->file, val);
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nfs4_lock_state();
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nfs4_lock_state();
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op->func(val);
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count = nfsd_for_n_state(val, op->forget);
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nfs4_unlock_state();
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nfs4_unlock_state();
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printk(KERN_INFO "NFSD: %s: found %llu", op->file, count);
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return 0;
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return 0;
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}
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}
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@ -4721,36 +4721,6 @@ u64 nfsd_for_n_state(u64 max, u64 (*func)(struct nfs4_client *, u64))
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return count;
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return count;
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}
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}
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void nfsd_forget_clients(u64 num)
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{
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u64 count = nfsd_for_n_state(num, nfsd_forget_client);
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printk(KERN_INFO "NFSD: Forgot %llu clients", count);
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}
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void nfsd_forget_locks(u64 num)
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{
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u64 count = nfsd_for_n_state(num, nfsd_forget_client_locks);
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printk(KERN_INFO "NFSD: Forgot %llu locks", count);
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}
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void nfsd_forget_openowners(u64 num)
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{
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u64 count = nfsd_for_n_state(num, nfsd_forget_client_openowners);
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printk(KERN_INFO "NFSD: Forgot %llu open owners", count);
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}
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void nfsd_forget_delegations(u64 num)
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{
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u64 count = nfsd_for_n_state(num, nfsd_forget_client_delegations);
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printk(KERN_INFO "NFSD: Forgot %llu delegations", count);
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}
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void nfsd_recall_delegations(u64 num)
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{
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u64 count = nfsd_for_n_state(num, nfsd_recall_client_delegations);
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printk(KERN_INFO "NFSD: Recalled %llu delegations", count);
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}
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#endif /* CONFIG_NFSD_FAULT_INJECTION */
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#endif /* CONFIG_NFSD_FAULT_INJECTION */
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/* initialization to perform at module load time: */
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/* initialization to perform at module load time: */
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@ -501,11 +501,13 @@ extern void nfsd4_record_grace_done(struct nfsd_net *nn, time_t boot_time);
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#ifdef CONFIG_NFSD_FAULT_INJECTION
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#ifdef CONFIG_NFSD_FAULT_INJECTION
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int nfsd_fault_inject_init(void);
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int nfsd_fault_inject_init(void);
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void nfsd_fault_inject_cleanup(void);
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void nfsd_fault_inject_cleanup(void);
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void nfsd_forget_clients(u64);
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u64 nfsd_for_n_state(u64, u64 (*)(struct nfs4_client *, u64));
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void nfsd_forget_locks(u64);
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void nfsd_forget_openowners(u64);
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u64 nfsd_forget_client(struct nfs4_client *, u64);
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void nfsd_forget_delegations(u64);
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u64 nfsd_forget_client_locks(struct nfs4_client*, u64);
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void nfsd_recall_delegations(u64);
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u64 nfsd_forget_client_openowners(struct nfs4_client *, u64);
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u64 nfsd_forget_client_delegations(struct nfs4_client *, u64);
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u64 nfsd_recall_client_delegations(struct nfs4_client *, u64);
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#else /* CONFIG_NFSD_FAULT_INJECTION */
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#else /* CONFIG_NFSD_FAULT_INJECTION */
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static inline int nfsd_fault_inject_init(void) { return 0; }
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static inline int nfsd_fault_inject_init(void) { return 0; }
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static inline void nfsd_fault_inject_cleanup(void) {}
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static inline void nfsd_fault_inject_cleanup(void) {}
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