diff options
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/dir.c | 45 | ||||
| -rw-r--r-- | fs/nfs/nfs3proc.c | 10 |
2 files changed, 41 insertions, 14 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index a7bb5c694aa3..1debc09eb55f 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -776,9 +776,9 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd) struct inode *dir; struct inode *inode; struct dentry *parent; + struct nfs_fh *fhandle = NULL; + struct nfs_fattr *fattr = NULL; int error; - struct nfs_fh fhandle; - struct nfs_fattr fattr; parent = dget_parent(dentry); dir = parent->d_inode; @@ -811,14 +811,22 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd) if (NFS_STALE(inode)) goto out_bad; - error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, &fhandle, &fattr); + error = -ENOMEM; + fhandle = nfs_alloc_fhandle(); + fattr = nfs_alloc_fattr(); + if (fhandle == NULL || fattr == NULL) + goto out_error; + + error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr); if (error) goto out_bad; - if (nfs_compare_fh(NFS_FH(inode), &fhandle)) + if (nfs_compare_fh(NFS_FH(inode), fhandle)) goto out_bad; - if ((error = nfs_refresh_inode(inode, &fattr)) != 0) + if ((error = nfs_refresh_inode(inode, fattr)) != 0) goto out_bad; + nfs_free_fattr(fattr); + nfs_free_fhandle(fhandle); out_set_verifier: nfs_set_verifier(dentry, nfs_save_change_attribute(dir)); out_valid: @@ -842,11 +850,21 @@ out_zap_parent: shrink_dcache_parent(dentry); } d_drop(dentry); + nfs_free_fattr(fattr); + nfs_free_fhandle(fhandle); dput(parent); dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) is invalid\n", __func__, dentry->d_parent->d_name.name, dentry->d_name.name); return 0; +out_error: + nfs_free_fattr(fattr); + nfs_free_fhandle(fhandle); + dput(parent); + dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) lookup returned error %d\n", + __func__, dentry->d_parent->d_name.name, + dentry->d_name.name, error); + return error; } /* @@ -911,9 +929,9 @@ static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru struct dentry *res; struct dentry *parent; struct inode *inode = NULL; + struct nfs_fh *fhandle = NULL; + struct nfs_fattr *fattr = NULL; int error; - struct nfs_fh fhandle; - struct nfs_fattr fattr; dfprintk(VFS, "NFS: lookup(%s/%s)\n", dentry->d_parent->d_name.name, dentry->d_name.name); @@ -923,7 +941,6 @@ static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru if (dentry->d_name.len > NFS_SERVER(dir)->namelen) goto out; - res = ERR_PTR(-ENOMEM); dentry->d_op = NFS_PROTO(dir)->dentry_ops; /* @@ -936,17 +953,23 @@ static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru goto out; } + res = ERR_PTR(-ENOMEM); + fhandle = nfs_alloc_fhandle(); + fattr = nfs_alloc_fattr(); + if (fhandle == NULL || fattr == NULL) + goto out; + parent = dentry->d_parent; /* Protect against concurrent sillydeletes */ nfs_block_sillyrename(parent); - error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, &fhandle, &fattr); + error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr); if (error == -ENOENT) goto no_entry; if (error < 0) { res = ERR_PTR(error); goto out_unblock_sillyrename; } - inode = nfs_fhget(dentry->d_sb, &fhandle, &fattr); + inode = nfs_fhget(dentry->d_sb, fhandle, fattr); res = (struct dentry *)inode; if (IS_ERR(res)) goto out_unblock_sillyrename; @@ -962,6 +985,8 @@ no_entry: out_unblock_sillyrename: nfs_unblock_sillyrename(parent); out: + nfs_free_fattr(fattr); + nfs_free_fhandle(fhandle); return res; } diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index e701002694e5..72334c19d481 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -144,14 +144,12 @@ static int nfs3_proc_lookup(struct inode *dir, struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr) { - struct nfs_fattr dir_attr; struct nfs3_diropargs arg = { .fh = NFS_FH(dir), .name = name->name, .len = name->len }; struct nfs3_diropres res = { - .dir_attr = &dir_attr, .fh = fhandle, .fattr = fattr }; @@ -163,16 +161,20 @@ nfs3_proc_lookup(struct inode *dir, struct qstr *name, int status; dprintk("NFS call lookup %s\n", name->name); - nfs_fattr_init(&dir_attr); + res.dir_attr = nfs_alloc_fattr(); + if (res.dir_attr == NULL) + return -ENOMEM; + nfs_fattr_init(fattr); status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); - nfs_refresh_inode(dir, &dir_attr); + nfs_refresh_inode(dir, res.dir_attr); if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) { msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; msg.rpc_argp = fhandle; msg.rpc_resp = fattr; status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); } + nfs_free_fattr(res.dir_attr); dprintk("NFS reply lookup: %d\n", status); return status; } |