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85 lines
2.7 KiB
85 lines
2.7 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __FS_NOTIFY_FSNOTIFY_H_ |
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#define __FS_NOTIFY_FSNOTIFY_H_ |
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#include <linux/list.h> |
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#include <linux/fsnotify.h> |
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#include <linux/srcu.h> |
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#include <linux/types.h> |
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#include "../mount.h" |
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static inline struct inode *fsnotify_conn_inode( |
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struct fsnotify_mark_connector *conn) |
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{ |
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return container_of(conn->obj, struct inode, i_fsnotify_marks); |
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} |
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static inline struct mount *fsnotify_conn_mount( |
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struct fsnotify_mark_connector *conn) |
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{ |
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return container_of(conn->obj, struct mount, mnt_fsnotify_marks); |
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} |
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static inline struct super_block *fsnotify_conn_sb( |
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struct fsnotify_mark_connector *conn) |
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{ |
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return container_of(conn->obj, struct super_block, s_fsnotify_marks); |
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} |
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static inline struct super_block *fsnotify_connector_sb( |
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struct fsnotify_mark_connector *conn) |
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{ |
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switch (conn->type) { |
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case FSNOTIFY_OBJ_TYPE_INODE: |
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return fsnotify_conn_inode(conn)->i_sb; |
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case FSNOTIFY_OBJ_TYPE_VFSMOUNT: |
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return fsnotify_conn_mount(conn)->mnt.mnt_sb; |
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case FSNOTIFY_OBJ_TYPE_SB: |
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return fsnotify_conn_sb(conn); |
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default: |
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return NULL; |
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} |
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} |
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/* destroy all events sitting in this groups notification queue */ |
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extern void fsnotify_flush_notify(struct fsnotify_group *group); |
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/* protects reads of inode and vfsmount marks list */ |
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extern struct srcu_struct fsnotify_mark_srcu; |
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/* compare two groups for sorting of marks lists */ |
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extern int fsnotify_compare_groups(struct fsnotify_group *a, |
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struct fsnotify_group *b); |
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/* Destroy all marks attached to an object via connector */ |
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extern void fsnotify_destroy_marks(fsnotify_connp_t *connp); |
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/* run the list of all marks associated with inode and destroy them */ |
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static inline void fsnotify_clear_marks_by_inode(struct inode *inode) |
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{ |
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fsnotify_destroy_marks(&inode->i_fsnotify_marks); |
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} |
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/* run the list of all marks associated with vfsmount and destroy them */ |
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static inline void fsnotify_clear_marks_by_mount(struct vfsmount *mnt) |
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{ |
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fsnotify_destroy_marks(&real_mount(mnt)->mnt_fsnotify_marks); |
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} |
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/* run the list of all marks associated with sb and destroy them */ |
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static inline void fsnotify_clear_marks_by_sb(struct super_block *sb) |
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{ |
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fsnotify_destroy_marks(&sb->s_fsnotify_marks); |
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} |
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/* |
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* update the dentry->d_flags of all of inode's children to indicate if inode cares |
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* about events that happen to its children. |
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*/ |
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extern void __fsnotify_update_child_dentry_flags(struct inode *inode); |
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/* allocate and destroy and event holder to attach events to notification/access queues */ |
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extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void); |
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extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder); |
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extern struct kmem_cache *fsnotify_mark_connector_cachep; |
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#endif /* __FS_NOTIFY_FSNOTIFY_H_ */
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