nfs4_opendata doesn't need struct path either

[platform/adaptation/renesas_rcar/renesas_kernel.git] / fs / nfs / nfs4proc.c

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 5879b23..aef22fa 100644 (file)
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -763,8 +763,8 @@ struct nfs4_opendata {
        struct nfs_open_confirmres c_res;
        struct nfs_fattr f_attr;
        struct nfs_fattr dir_attr;
-       struct path path;
        struct dentry *dir;
+       struct dentry *dentry;
        struct nfs4_state_owner *owner;
        struct nfs4_state *state;
        struct iattr attrs;
@@ -786,12 +786,12 @@ static void nfs4_init_opendata_res(struct nfs4_opendata *p)
        nfs_fattr_init(&p->dir_attr);
 }
 
-static struct nfs4_opendata *nfs4_opendata_alloc(struct path *path,
+static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
                struct nfs4_state_owner *sp, fmode_t fmode, int flags,
                const struct iattr *attrs,
                gfp_t gfp_mask)
 {
-       struct dentry *parent = dget_parent(path->dentry);
+       struct dentry *parent = dget_parent(dentry);
        struct inode *dir = parent->d_inode;
        struct nfs_server *server = NFS_SERVER(dir);
        struct nfs4_opendata *p;
@@ -802,8 +802,8 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct path *path,
        p->o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid, gfp_mask);
        if (p->o_arg.seqid == NULL)
                goto err_free;
-       path_get(path);
-       p->path = *path;
+       nfs_sb_active(dentry->d_sb);
+       p->dentry = dget(dentry);
        p->dir = parent;
        p->owner = sp;
        atomic_inc(&sp->so_count);
@@ -812,7 +812,7 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct path *path,
        p->o_arg.fmode = fmode & (FMODE_READ|FMODE_WRITE);
        p->o_arg.clientid = server->nfs_client->cl_clientid;
        p->o_arg.id = sp->so_owner_id.id;
-       p->o_arg.name = &p->path.dentry->d_name;
+       p->o_arg.name = &dentry->d_name;
        p->o_arg.server = server;
        p->o_arg.bitmask = server->attr_bitmask;
        p->o_arg.claim = NFS4_OPEN_CLAIM_NULL;
@@ -842,13 +842,15 @@ static void nfs4_opendata_free(struct kref *kref)
 {
        struct nfs4_opendata *p = container_of(kref,
                        struct nfs4_opendata, kref);
+       struct super_block *sb = p->dentry->d_sb;
 
        nfs_free_seqid(p->o_arg.seqid);
        if (p->state != NULL)
                nfs4_put_open_state(p->state);
        nfs4_put_state_owner(p->owner);
        dput(p->dir);
-       path_put(&p->path);
+       dput(p->dentry);
+       nfs_sb_deactive(sb);
        kfree(p);
 }
 
@@ -1130,7 +1132,7 @@ static struct nfs4_opendata *nfs4_open_recoverdata_alloc(struct nfs_open_context
 {
        struct nfs4_opendata *opendata;
 
-       opendata = nfs4_opendata_alloc(&ctx->path, state->owner, 0, 0, NULL, GFP_NOFS);
+       opendata = nfs4_opendata_alloc(ctx->path.dentry, state->owner, 0, 0, NULL, GFP_NOFS);
        if (opendata == NULL)
                return ERR_PTR(-ENOMEM);
        opendata->state = state;
@@ -1154,7 +1156,7 @@ static int nfs4_open_recover_helper(struct nfs4_opendata *opendata, fmode_t fmod
        newstate = nfs4_opendata_to_nfs4_state(opendata);
        if (IS_ERR(newstate))
                return PTR_ERR(newstate);
-       nfs4_close_state(&opendata->path, newstate, fmode);
+       nfs4_close_state(newstate, fmode);
        *res = newstate;
        return 0;
 }
@@ -1352,7 +1354,7 @@ static void nfs4_open_confirm_release(void *calldata)
                goto out_free;
        state = nfs4_opendata_to_nfs4_state(data);
        if (!IS_ERR(state))
-               nfs4_close_state(&data->path, state, data->o_arg.fmode);
+               nfs4_close_state(state, data->o_arg.fmode);
 out_free:
        nfs4_opendata_put(data);
 }
@@ -1497,7 +1499,7 @@ static void nfs4_open_release(void *calldata)
                goto out_free;
        state = nfs4_opendata_to_nfs4_state(data);
        if (!IS_ERR(state))
-               nfs4_close_state(&data->path, state, data->o_arg.fmode);
+               nfs4_close_state(state, data->o_arg.fmode);
 out_free:
        nfs4_opendata_put(data);
 }
@@ -1706,7 +1708,7 @@ static inline void nfs4_exclusive_attrset(struct nfs4_opendata *opendata, struct
 /*
  * Returns a referenced nfs4_state
  */
-static int _nfs4_do_open(struct inode *dir, struct path *path, fmode_t fmode, int flags, struct iattr *sattr, struct rpc_cred *cred, struct nfs4_state **res)
+static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, fmode_t fmode, int flags, struct iattr *sattr, struct rpc_cred *cred, struct nfs4_state **res)
 {
        struct nfs4_state_owner  *sp;
        struct nfs4_state     *state = NULL;
@@ -1723,15 +1725,15 @@ static int _nfs4_do_open(struct inode *dir, struct path *path, fmode_t fmode, in
        status = nfs4_recover_expired_lease(server);
        if (status != 0)
                goto err_put_state_owner;
-       if (path->dentry->d_inode != NULL)
-               nfs4_return_incompatible_delegation(path->dentry->d_inode, fmode);
+       if (dentry->d_inode != NULL)
+               nfs4_return_incompatible_delegation(dentry->d_inode, fmode);
        status = -ENOMEM;
-       opendata = nfs4_opendata_alloc(path, sp, fmode, flags, sattr, GFP_KERNEL);
+       opendata = nfs4_opendata_alloc(dentry, sp, fmode, flags, sattr, GFP_KERNEL);
        if (opendata == NULL)
                goto err_put_state_owner;
 
-       if (path->dentry->d_inode != NULL)
-               opendata->state = nfs4_get_open_state(path->dentry->d_inode, sp);
+       if (dentry->d_inode != NULL)
+               opendata->state = nfs4_get_open_state(dentry->d_inode, sp);
 
        status = _nfs4_proc_open(opendata);
        if (status != 0)
@@ -1769,14 +1771,14 @@ out_err:
 }
 
 
-static struct nfs4_state *nfs4_do_open(struct inode *dir, struct path *path, fmode_t fmode, int flags, struct iattr *sattr, struct rpc_cred *cred)
+static struct nfs4_state *nfs4_do_open(struct inode *dir, struct dentry *dentry, fmode_t fmode, int flags, struct iattr *sattr, struct rpc_cred *cred)
 {
        struct nfs4_exception exception = { };
        struct nfs4_state *res;
        int status;
 
        do {
-               status = _nfs4_do_open(dir, path, fmode, flags, sattr, cred, &res);
+               status = _nfs4_do_open(dir, dentry, fmode, flags, sattr, cred, &res);
                if (status == 0)
                        break;
                /* NOTE: BAD_SEQID means the server and client disagree about the
@@ -1873,7 +1875,6 @@ static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
 }
 
 struct nfs4_closedata {
-       struct path path;
        struct inode *inode;
        struct nfs4_state *state;
        struct nfs_closeargs arg;
@@ -1888,13 +1889,14 @@ static void nfs4_free_closedata(void *data)
 {
        struct nfs4_closedata *calldata = data;
        struct nfs4_state_owner *sp = calldata->state->owner;
+       struct super_block *sb = calldata->state->inode->i_sb;
 
        if (calldata->roc)
                pnfs_roc_release(calldata->state->inode);
        nfs4_put_open_state(calldata->state);
        nfs_free_seqid(calldata->arg.seqid);
        nfs4_put_state_owner(sp);
-       path_put(&calldata->path);
+       nfs_sb_deactive(sb);
        kfree(calldata);
 }
 
@@ -2014,7 +2016,7 @@ static const struct rpc_call_ops nfs4_close_ops = {
  *
  * NOTE: Caller must be holding the sp->so_owner semaphore!
  */
-int nfs4_do_close(struct path *path, struct nfs4_state *state, gfp_t gfp_mask, int wait, bool roc)
+int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait, bool roc)
 {
        struct nfs_server *server = NFS_SERVER(state->inode);
        struct nfs4_closedata *calldata;
@@ -2050,8 +2052,7 @@ int nfs4_do_close(struct path *path, struct nfs4_state *state, gfp_t gfp_mask, i
        calldata->res.seqid = calldata->arg.seqid;
        calldata->res.server = server;
        calldata->roc = roc;
-       path_get(path);
-       calldata->path = *path;
+       nfs_sb_active(calldata->inode->i_sb);
 
        msg.rpc_argp = &calldata->arg;
        msg.rpc_resp = &calldata->res;
@@ -2080,7 +2081,7 @@ nfs4_atomic_open(struct inode *dir, struct nfs_open_context *ctx, int open_flags
        struct nfs4_state *state;
 
        /* Protect against concurrent sillydeletes */
-       state = nfs4_do_open(dir, &ctx->path, ctx->mode, open_flags, attr, ctx->cred);
+       state = nfs4_do_open(dir, ctx->path.dentry, ctx->mode, open_flags, attr, ctx->cred);
        if (IS_ERR(state))
                return ERR_CAST(state);
        ctx->state = state;
@@ -2092,9 +2093,9 @@ static void nfs4_close_context(struct nfs_open_context *ctx, int is_sync)
        if (ctx->state == NULL)
                return;
        if (is_sync)
-               nfs4_close_sync(&ctx->path, ctx->state, ctx->mode);
+               nfs4_close_sync(ctx->state, ctx->mode);
        else
-               nfs4_close_state(&ctx->path, ctx->state, ctx->mode);
+               nfs4_close_state(ctx->state, ctx->mode);
 }
 
 static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle)
@@ -2616,10 +2617,7 @@ static int
 nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
                  int flags, struct nfs_open_context *ctx)
 {
-       struct path my_path = {
-               .dentry = dentry,
-       };
-       struct path *path = &my_path;
+       struct dentry *de = dentry;
        struct nfs4_state *state;
        struct rpc_cred *cred = NULL;
        fmode_t fmode = 0;
@@ -2627,11 +2625,11 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 
        if (ctx != NULL) {
                cred = ctx->cred;
-               path = &ctx->path;
+               de = ctx->path.dentry;
                fmode = ctx->mode;
        }
        sattr->ia_mode &= ~current_umask();
-       state = nfs4_do_open(dir, path, fmode, flags, sattr, cred);
+       state = nfs4_do_open(dir, de, fmode, flags, sattr, cred);
        d_drop(dentry);
        if (IS_ERR(state)) {
                status = PTR_ERR(state);
@@ -2642,7 +2640,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
        if (ctx != NULL)
                ctx->state = state;
        else
-               nfs4_close_sync(path, state, fmode);
+               nfs4_close_sync(state, fmode);
 out:
        return status;
 }