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This extends our sysfs '/sys/module/zfs' entry to include feature and property attributes. The primary consumer of this information is user processes, like the zfs CLI, that need to know what the current loaded ZFS module supports. The libzfs binary will consult this information when instantiating the zfs and zpool property tables and the pool features table. This introduces 4 kernel objects (dirs) into '/sys/module/zfs' with corresponding attributes (files): features.runtime features.pool properties.dataset properties.pool Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Don Brady <don.brady@delphix.com> Closes #7706
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/*
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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) 2018 by Delphix. All rights reserved.
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*/
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#ifndef _SYS_ZFS_SYSFS_H
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#define _SYS_ZFS_SYSFS_H
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#ifdef _KERNEL
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void zfs_sysfs_init(void);
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void zfs_sysfs_fini(void);
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#else
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#define zfs_sysfs_init()
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#define zfs_sysfs_fini()
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#endif
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#define ZFS_SYSFS_POOL_PROPERTIES "properties.pool"
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#define ZFS_SYSFS_DATASET_PROPERTIES "properties.dataset"
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#define ZFS_SYSFS_KERNEL_FEATURES "features.kernel"
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#define ZFS_SYSFS_POOL_FEATURES "features.pool"
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#define ZFS_SYSFS_DIR "/sys/module/zfs"
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#endif /* _SYS_ZFS_SYSFS_H */
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