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