#include <linux/nfs.h>
#include <linux/nfs3.h>
#include <linux/nfs_fs.h>
-#include <linux/xattr_acl.h>
+#include <linux/posix_acl_xattr.h>
#include <linux/nfsacl.h>
#define NFSDBG_FACILITY NFSDBG_PROC
struct posix_acl *acl;
int type, error = 0;
- if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0)
+ if (strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0)
type = ACL_TYPE_ACCESS;
- else if (strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0)
+ else if (strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0)
type = ACL_TYPE_DEFAULT;
else
return -EOPNOTSUPP;
struct posix_acl *acl;
int type, error;
- if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0)
+ if (strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0)
type = ACL_TYPE_ACCESS;
- else if (strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0)
+ else if (strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0)
type = ACL_TYPE_DEFAULT;
else
return -EOPNOTSUPP;
struct inode *inode = dentry->d_inode;
int type;
- if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0)
+ if (strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0)
type = ACL_TYPE_ACCESS;
- else if (strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0)
+ else if (strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0)
type = ACL_TYPE_DEFAULT;
else
return -EOPNOTSUPP;
return nfs3_proc_setacl(inode, type, NULL);
}
+static void __nfs3_forget_cached_acls(struct nfs_inode *nfsi)
+{
+ if (!IS_ERR(nfsi->acl_access)) {
+ posix_acl_release(nfsi->acl_access);
+ nfsi->acl_access = ERR_PTR(-EAGAIN);
+ }
+ if (!IS_ERR(nfsi->acl_default)) {
+ posix_acl_release(nfsi->acl_default);
+ nfsi->acl_default = ERR_PTR(-EAGAIN);
+ }
+}
+
+void nfs3_forget_cached_acls(struct inode *inode)
+{
+ dprintk("NFS: nfs3_forget_cached_acls(%s/%ld)\n", inode->i_sb->s_id,
+ inode->i_ino);
+ spin_lock(&inode->i_lock);
+ __nfs3_forget_cached_acls(NFS_I(inode));
+ spin_unlock(&inode->i_lock);
+}
+
+static struct posix_acl *nfs3_get_cached_acl(struct inode *inode, int type)
+{
+ struct nfs_inode *nfsi = NFS_I(inode);
+ struct posix_acl *acl = ERR_PTR(-EINVAL);
+
+ spin_lock(&inode->i_lock);
+ switch(type) {
+ case ACL_TYPE_ACCESS:
+ acl = nfsi->acl_access;
+ break;
+
+ case ACL_TYPE_DEFAULT:
+ acl = nfsi->acl_default;
+ break;
+
+ default:
+ goto out;
+ }
+ if (IS_ERR(acl))
+ acl = ERR_PTR(-EAGAIN);
+ else
+ acl = posix_acl_dup(acl);
+out:
+ spin_unlock(&inode->i_lock);
+ dprintk("NFS: nfs3_get_cached_acl(%s/%ld, %d) = %p\n", inode->i_sb->s_id,
+ inode->i_ino, type, acl);
+ return acl;
+}
+
+static void nfs3_cache_acls(struct inode *inode, struct posix_acl *acl,
+ struct posix_acl *dfacl)
+{
+ struct nfs_inode *nfsi = NFS_I(inode);
+
+ dprintk("nfs3_cache_acls(%s/%ld, %p, %p)\n", inode->i_sb->s_id,
+ inode->i_ino, acl, dfacl);
+ spin_lock(&inode->i_lock);
+ __nfs3_forget_cached_acls(NFS_I(inode));
+ nfsi->acl_access = posix_acl_dup(acl);
+ nfsi->acl_default = posix_acl_dup(dfacl);
+ spin_unlock(&inode->i_lock);
+}
+
struct posix_acl *nfs3_proc_getacl(struct inode *inode, int type)
{
struct nfs_server *server = NFS_SERVER(inode);
struct nfs3_getaclres res = {
.fattr = &fattr,
};
- struct posix_acl *acl = NULL;
+ struct posix_acl *acl;
int status, count;
if (!nfs_server_capable(inode, NFS_CAP_ACLS))
return ERR_PTR(-EOPNOTSUPP);
- switch (type) {
- case ACL_TYPE_ACCESS:
- args.mask = NFS_ACLCNT|NFS_ACL;
- break;
-
- case ACL_TYPE_DEFAULT:
- if (!S_ISDIR(inode->i_mode))
- return NULL;
- args.mask = NFS_DFACLCNT|NFS_DFACL;
- break;
-
- default:
- return ERR_PTR(-EINVAL);
- }
+ status = nfs_revalidate_inode(server, inode);
+ if (status < 0)
+ return ERR_PTR(status);
+ acl = nfs3_get_cached_acl(inode, type);
+ if (acl != ERR_PTR(-EAGAIN))
+ return acl;
+ acl = NULL;
+
+ /*
+ * Only get the access acl when explicitly requested: We don't
+ * need it for access decisions, and only some applications use
+ * it. Applications which request the access acl first are not
+ * penalized from this optimization.
+ */
+ if (type == ACL_TYPE_ACCESS)
+ args.mask |= NFS_ACLCNT|NFS_ACL;
+ if (S_ISDIR(inode->i_mode))
+ args.mask |= NFS_DFACLCNT|NFS_DFACL;
+ if (args.mask == 0)
+ return NULL;
dprintk("NFS call getacl\n");
status = rpc_call(server->client_acl, ACLPROC3_GETACL,
res.acl_access = NULL;
}
}
+ nfs3_cache_acls(inode, res.acl_access, res.acl_default);
switch(type) {
case ACL_TYPE_ACCESS:
nfs_begin_data_update(inode);
status = rpc_call(server->client_acl, ACLPROC3_SETACL,
&args, &fattr, 0);
- NFS_FLAGS(inode) |= NFS_INO_INVALID_ACCESS;
+ spin_lock(&inode->i_lock);
+ NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ACCESS;
+ spin_unlock(&inode->i_lock);
nfs_end_data_update(inode);
dprintk("NFS reply setacl: %d\n", status);
fail:
return PTR_ERR(alloc);
}
+
+int nfs3_proc_set_default_acl(struct inode *dir, struct inode *inode,
+ mode_t mode)
+{
+ struct posix_acl *dfacl, *acl;
+ int error = 0;
+
+ dfacl = nfs3_proc_getacl(dir, ACL_TYPE_DEFAULT);
+ if (IS_ERR(dfacl)) {
+ error = PTR_ERR(dfacl);
+ return (error == -EOPNOTSUPP) ? 0 : error;
+ }
+ if (!dfacl)
+ return 0;
+ acl = posix_acl_clone(dfacl, GFP_KERNEL);
+ error = -ENOMEM;
+ if (!acl)
+ goto out_release_dfacl;
+ error = posix_acl_create_masq(acl, &mode);
+ if (error < 0)
+ goto out_release_acl;
+ error = nfs3_proc_setacls(inode, acl, S_ISDIR(inode->i_mode) ?
+ dfacl : NULL);
+out_release_acl:
+ posix_acl_release(acl);
+out_release_dfacl:
+ posix_acl_release(dfacl);
+ return error;
+}
projects / linux-2.6-omap-h63xx.git / blobdiff