1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or https://opensource.org/licenses/CDDL-1.0. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2017, Intel Corporation. All rights reserved. 23 */ 24 25 #ifndef _SYS_ZFS_PROJECT_H 26 #define _SYS_ZFS_PROJECT_H 27 28 #ifndef _KERNEL 29 #ifndef _SYS_MOUNT_H 30 /* XXX: some hack to avoid include sys/mount.h */ 31 #define _SYS_MOUNT_H 32 #endif 33 #endif 34 35 #include <sys/vfs.h> 36 37 #ifdef FS_PROJINHERIT_FL 38 #define ZFS_PROJINHERIT_FL FS_PROJINHERIT_FL 39 #else 40 #define ZFS_PROJINHERIT_FL 0x20000000 41 #endif 42 43 #ifdef FS_IOC_FSGETXATTR 44 typedef struct fsxattr zfsxattr_t; 45 46 #define ZFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR 47 #define ZFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR 48 #else 49 struct zfsxattr { 50 uint32_t fsx_xflags; /* xflags field value (get/set) */ 51 uint32_t fsx_extsize; /* extsize field value (get/set) */ 52 uint32_t fsx_nextents; /* nextents field value (get) */ 53 uint32_t fsx_projid; /* project identifier (get/set) */ 54 uint32_t fsx_cowextsize; 55 unsigned char fsx_pad[8]; 56 }; 57 typedef struct zfsxattr zfsxattr_t; 58 59 #define ZFS_IOC_FSGETXATTR _IOR('X', 31, zfsxattr_t) 60 #define ZFS_IOC_FSSETXATTR _IOW('X', 32, zfsxattr_t) 61 #endif 62 63 #define ZFS_DEFAULT_PROJID (0ULL) 64 /* 65 * It is NOT ondisk project ID value. Just means either the object has 66 * no project ID or the operation does not touch project ID attribute. 67 */ 68 #define ZFS_INVALID_PROJID (-1ULL) 69 70 static inline boolean_t 71 zpl_is_valid_projid(uint32_t projid) 72 { 73 /* 74 * zfsxattr::fsx_projid is 32-bits, when convert to uint64_t, 75 * the higher 32-bits will be set as zero, so cannot directly 76 * compare with ZFS_INVALID_PROJID (-1ULL) 77 */ 78 if ((uint32_t)ZFS_INVALID_PROJID == projid) 79 return (B_FALSE); 80 return (B_TRUE); 81 } 82 83 #endif /* _SYS_ZFS_PROJECT_H */ 84