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NFSv4.1: Allow parallel OPEN/OPEN_DOWNGRADE/CLOSE
Remove the serialisation of OPEN/OPEN_DOWNGRADE and CLOSE calls for the case of NFSv4.1 and newer. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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@ -44,6 +44,7 @@ enum nfs4_client_state {
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#define NFS4_RENEW_TIMEOUT 0x01
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#define NFS4_RENEW_DELEGATION_CB 0x02
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struct nfs_seqid_counter;
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struct nfs4_minor_version_ops {
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u32 minor_version;
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unsigned init_caps;
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@ -56,6 +57,8 @@ struct nfs4_minor_version_ops {
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struct nfs_fsinfo *);
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void (*free_lock_state)(struct nfs_server *,
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struct nfs4_lock_state *);
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struct nfs_seqid *
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(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t);
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const struct rpc_call_ops *call_sync_ops;
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const struct nfs4_state_recovery_ops *reboot_recovery_ops;
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const struct nfs4_state_recovery_ops *nograce_recovery_ops;
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@ -977,6 +977,7 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
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struct dentry *parent = dget_parent(dentry);
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struct inode *dir = parent->d_inode;
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struct nfs_server *server = NFS_SERVER(dir);
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struct nfs_seqid *(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t);
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struct nfs4_opendata *p;
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p = kzalloc(sizeof(*p), gfp_mask);
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@ -987,7 +988,8 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
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if (IS_ERR(p->f_label))
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goto err_free_p;
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p->o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid, gfp_mask);
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alloc_seqid = server->nfs_client->cl_mvops->alloc_seqid;
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p->o_arg.seqid = alloc_seqid(&sp->so_seqid, gfp_mask);
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if (IS_ERR(p->o_arg.seqid))
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goto err_free_label;
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nfs_sb_active(dentry->d_sb);
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@ -2751,6 +2753,7 @@ static bool nfs4_roc(struct inode *inode)
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int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait)
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{
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struct nfs_server *server = NFS_SERVER(state->inode);
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struct nfs_seqid *(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t);
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struct nfs4_closedata *calldata;
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struct nfs4_state_owner *sp = state->owner;
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struct rpc_task *task;
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@ -2778,7 +2781,8 @@ int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait)
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calldata->state = state;
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calldata->arg.fh = NFS_FH(state->inode);
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/* Serialization for the sequence id */
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calldata->arg.seqid = nfs_alloc_seqid(&state->owner->so_seqid, gfp_mask);
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alloc_seqid = server->nfs_client->cl_mvops->alloc_seqid;
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calldata->arg.seqid = alloc_seqid(&state->owner->so_seqid, gfp_mask);
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if (IS_ERR(calldata->arg.seqid))
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goto out_free_calldata;
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calldata->arg.fmode = 0;
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@ -8414,6 +8418,7 @@ static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = {
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.match_stateid = nfs4_match_stateid,
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.find_root_sec = nfs4_find_root_sec,
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.free_lock_state = nfs4_release_lockowner,
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.alloc_seqid = nfs_alloc_seqid,
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.call_sync_ops = &nfs40_call_sync_ops,
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.reboot_recovery_ops = &nfs40_reboot_recovery_ops,
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.nograce_recovery_ops = &nfs40_nograce_recovery_ops,
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@ -8422,6 +8427,12 @@ static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = {
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};
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#if defined(CONFIG_NFS_V4_1)
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static struct nfs_seqid *
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nfs_alloc_no_seqid(struct nfs_seqid_counter *arg1, gfp_t arg2)
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{
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return NULL;
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}
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static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
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.minor_version = 1,
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.init_caps = NFS_CAP_READDIRPLUS
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@ -8435,6 +8446,7 @@ static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
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.match_stateid = nfs41_match_stateid,
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.find_root_sec = nfs41_find_root_sec,
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.free_lock_state = nfs41_free_lock_state,
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.alloc_seqid = nfs_alloc_no_seqid,
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.call_sync_ops = &nfs41_call_sync_ops,
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.reboot_recovery_ops = &nfs41_reboot_recovery_ops,
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.nograce_recovery_ops = &nfs41_nograce_recovery_ops,
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@ -8461,6 +8473,7 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = {
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.find_root_sec = nfs41_find_root_sec,
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.free_lock_state = nfs41_free_lock_state,
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.call_sync_ops = &nfs41_call_sync_ops,
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.alloc_seqid = nfs_alloc_no_seqid,
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.reboot_recovery_ops = &nfs41_reboot_recovery_ops,
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.nograce_recovery_ops = &nfs41_nograce_recovery_ops,
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.state_renewal_ops = &nfs41_state_renewal_ops,
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