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Commit 63f5f796 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

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: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent a6796419

fs/nfs/nfs4_fs.h

+3 −0
Original line number Diff line number Diff line
@@ -44,6 +44,7 @@ enum nfs4_client_state { 
#define NFS4_RENEW_TIMEOUT		0x01

#define NFS4_RENEW_DELEGATION_CB	0x02



struct nfs_seqid_counter;

struct nfs4_minor_version_ops {

	u32	minor_version;

	unsigned init_caps;
@@ -56,6 +57,8 @@ struct nfs4_minor_version_ops { 
			struct nfs_fsinfo *);

	void	(*free_lock_state)(struct nfs_server *,

			struct nfs4_lock_state *);

	struct nfs_seqid *

		(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t);

	const struct rpc_call_ops *call_sync_ops;

	const struct nfs4_state_recovery_ops *reboot_recovery_ops;

	const struct nfs4_state_recovery_ops *nograce_recovery_ops;

fs/nfs/nfs4proc.c

+15 −2
Original line number Diff line number Diff line
@@ -977,6 +977,7 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry, 
	struct dentry *parent = dget_parent(dentry);

	struct inode *dir = parent->d_inode;

	struct nfs_server *server = NFS_SERVER(dir);

	struct nfs_seqid *(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t);

	struct nfs4_opendata *p;



	p = kzalloc(sizeof(*p), gfp_mask);
@@ -987,7 +988,8 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry, 
	if (IS_ERR(p->f_label))

		goto err_free_p;



	p->o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid, gfp_mask);

	alloc_seqid = server->nfs_client->cl_mvops->alloc_seqid;

	p->o_arg.seqid = alloc_seqid(&sp->so_seqid, gfp_mask);

	if (IS_ERR(p->o_arg.seqid))

		goto err_free_label;

	nfs_sb_active(dentry->d_sb);
@@ -2751,6 +2753,7 @@ static bool nfs4_roc(struct inode *inode) 
int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait)

{

	struct nfs_server *server = NFS_SERVER(state->inode);

	struct nfs_seqid *(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t);

	struct nfs4_closedata *calldata;

	struct nfs4_state_owner *sp = state->owner;

	struct rpc_task *task;
@@ -2778,7 +2781,8 @@ int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait) 
	calldata->state = state;

	calldata->arg.fh = NFS_FH(state->inode);

	/* Serialization for the sequence id */

	calldata->arg.seqid = nfs_alloc_seqid(&state->owner->so_seqid, gfp_mask);

	alloc_seqid = server->nfs_client->cl_mvops->alloc_seqid;

	calldata->arg.seqid = alloc_seqid(&state->owner->so_seqid, gfp_mask);

	if (IS_ERR(calldata->arg.seqid))

		goto out_free_calldata;

	calldata->arg.fmode = 0;
@@ -8414,6 +8418,7 @@ static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = { 
	.match_stateid = nfs4_match_stateid,

	.find_root_sec = nfs4_find_root_sec,

	.free_lock_state = nfs4_release_lockowner,

	.alloc_seqid = nfs_alloc_seqid,

	.call_sync_ops = &nfs40_call_sync_ops,

	.reboot_recovery_ops = &nfs40_reboot_recovery_ops,

	.nograce_recovery_ops = &nfs40_nograce_recovery_ops,
@@ -8422,6 +8427,12 @@ static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = { 
};



#if defined(CONFIG_NFS_V4_1)

static struct nfs_seqid *

nfs_alloc_no_seqid(struct nfs_seqid_counter *arg1, gfp_t arg2)

{

	return NULL;

}



static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {

	.minor_version = 1,

	.init_caps = NFS_CAP_READDIRPLUS
@@ -8435,6 +8446,7 @@ static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = { 
	.match_stateid = nfs41_match_stateid,

	.find_root_sec = nfs41_find_root_sec,

	.free_lock_state = nfs41_free_lock_state,

	.alloc_seqid = nfs_alloc_no_seqid,

	.call_sync_ops = &nfs41_call_sync_ops,

	.reboot_recovery_ops = &nfs41_reboot_recovery_ops,

	.nograce_recovery_ops = &nfs41_nograce_recovery_ops,
@@ -8461,6 +8473,7 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = { 
	.find_root_sec = nfs41_find_root_sec,

	.free_lock_state = nfs41_free_lock_state,

	.call_sync_ops = &nfs41_call_sync_ops,

	.alloc_seqid = nfs_alloc_no_seqid,

	.reboot_recovery_ops = &nfs41_reboot_recovery_ops,

	.nograce_recovery_ops = &nfs41_nograce_recovery_ops,

	.state_renewal_ops = &nfs41_state_renewal_ops,