diff options
Diffstat (limited to 'include/sys/zfs_project.h')
| -rw-r--r-- | include/sys/zfs_project.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/include/sys/zfs_project.h b/include/sys/zfs_project.h new file mode 100644 index 000000000..52d5204a6 --- /dev/null +++ b/include/sys/zfs_project.h @@ -0,0 +1,83 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 2017, Intel Corporation. All rights reserved. + */ + +#ifndef _SYS_ZFS_PROJECT_H +#define _SYS_ZFS_PROJECT_H + +#ifndef _KERNEL +#ifndef _SYS_MOUNT_H +/* XXX: some hack to avoid include sys/mount.h */ +#define _SYS_MOUNT_H +#endif +#endif + +#include <linux/fs.h> + +#ifdef FS_PROJINHERIT_FL +#define ZFS_PROJINHERIT_FL FS_PROJINHERIT_FL +#else +#define ZFS_PROJINHERIT_FL 0x20000000 +#endif + +#ifdef FS_IOC_FSGETXATTR +typedef struct fsxattr zfsxattr_t; + +#define ZFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR +#define ZFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR +#else +struct zfsxattr { + uint32_t fsx_xflags; /* xflags field value (get/set) */ + uint32_t fsx_extsize; /* extsize field value (get/set) */ + uint32_t fsx_nextents; /* nextents field value (get) */ + uint32_t fsx_projid; /* project identifier (get/set) */ + uint32_t fsx_cowextsize; + unsigned char fsx_pad[8]; +}; +typedef struct zfsxattr zfsxattr_t; + +#define ZFS_IOC_FSGETXATTR _IOR('X', 31, zfsxattr_t) +#define ZFS_IOC_FSSETXATTR _IOW('X', 32, zfsxattr_t) +#endif + +#define ZFS_DEFAULT_PROJID (0ULL) +/* + * It is NOT ondisk project ID value. Just means either the object has + * no project ID or the operation does not touch project ID attribute. + */ +#define ZFS_INVALID_PROJID (-1ULL) + +static inline boolean_t +zpl_is_valid_projid(uint32_t projid) +{ + /* + * zfsxattr::fsx_projid is 32-bits, when convert to uint64_t, + * the higher 32-bits will be set as zero, so cannot directly + * compare with ZFS_INVALID_PROJID (-1ULL) + */ + if ((uint32_t)ZFS_INVALID_PROJID == projid) + return (B_FALSE); + return (B_TRUE); +} + +#endif /* _SYS_ZFS_PROJECT_H */ |