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2ee8333529
Since commit ee6d3dd4ed ("driver core: make kobj_type constant.")
the driver core allows the usage of const struct kobj_type.
Take advantage of this to constify the structure definitions to prevent
modification at runtime.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2014 Red Hat, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_SYSFS_H__
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#define __XFS_SYSFS_H__
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extern const struct kobj_type xfs_mp_ktype; /* xfs_mount */
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extern const struct kobj_type xfs_dbg_ktype; /* debug */
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extern const struct kobj_type xfs_log_ktype; /* xlog */
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extern const struct kobj_type xfs_stats_ktype; /* stats */
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static inline struct xfs_kobj *
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to_kobj(struct kobject *kobject)
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{
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return container_of(kobject, struct xfs_kobj, kobject);
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}
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static inline void
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xfs_sysfs_release(struct kobject *kobject)
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{
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struct xfs_kobj *kobj = to_kobj(kobject);
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complete(&kobj->complete);
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}
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static inline int
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xfs_sysfs_init(
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struct xfs_kobj *kobj,
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const struct kobj_type *ktype,
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struct xfs_kobj *parent_kobj,
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const char *name)
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{
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struct kobject *parent;
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int err;
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parent = parent_kobj ? &parent_kobj->kobject : NULL;
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init_completion(&kobj->complete);
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err = kobject_init_and_add(&kobj->kobject, ktype, parent, "%s", name);
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if (err)
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kobject_put(&kobj->kobject);
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return err;
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}
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static inline void
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xfs_sysfs_del(
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struct xfs_kobj *kobj)
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{
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kobject_del(&kobj->kobject);
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kobject_put(&kobj->kobject);
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wait_for_completion(&kobj->complete);
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}
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int xfs_error_sysfs_init(struct xfs_mount *mp);
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void xfs_error_sysfs_del(struct xfs_mount *mp);
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#endif /* __XFS_SYSFS_H__ */
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