LCOV - code coverage report
Current view: top level - fs/notify - fsnotify.h (source / functions) Hit Total Coverage
Test: Real Lines: 4 6 66.7 %
Date: 2020-10-17 15:46:16 Functions: 0 0 -
Legend: Neither, QEMU, Real, Both Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* SPDX-License-Identifier: GPL-2.0 */
       2                 :            : #ifndef __FS_NOTIFY_FSNOTIFY_H_
       3                 :            : #define __FS_NOTIFY_FSNOTIFY_H_
       4                 :            : 
       5                 :            : #include <linux/list.h>
       6                 :            : #include <linux/fsnotify.h>
       7                 :            : #include <linux/srcu.h>
       8                 :            : #include <linux/types.h>
       9                 :            : 
      10                 :            : #include "../mount.h"
      11                 :            : 
      12                 :            : static inline struct inode *fsnotify_conn_inode(
      13                 :            :                                 struct fsnotify_mark_connector *conn)
      14                 :            : {
      15                 :          3 :         return container_of(conn->obj, struct inode, i_fsnotify_marks);
      16                 :            : }
      17                 :            : 
      18                 :            : static inline struct mount *fsnotify_conn_mount(
      19                 :            :                                 struct fsnotify_mark_connector *conn)
      20                 :            : {
      21                 :          0 :         return container_of(conn->obj, struct mount, mnt_fsnotify_marks);
      22                 :            : }
      23                 :            : 
      24                 :            : static inline struct super_block *fsnotify_conn_sb(
      25                 :            :                                 struct fsnotify_mark_connector *conn)
      26                 :            : {
      27                 :          0 :         return container_of(conn->obj, struct super_block, s_fsnotify_marks);
      28                 :            : }
      29                 :            : 
      30                 :            : /* destroy all events sitting in this groups notification queue */
      31                 :            : extern void fsnotify_flush_notify(struct fsnotify_group *group);
      32                 :            : 
      33                 :            : /* protects reads of inode and vfsmount marks list */
      34                 :            : extern struct srcu_struct fsnotify_mark_srcu;
      35                 :            : 
      36                 :            : /* compare two groups for sorting of marks lists */
      37                 :            : extern int fsnotify_compare_groups(struct fsnotify_group *a,
      38                 :            :                                    struct fsnotify_group *b);
      39                 :            : 
      40                 :            : /* Destroy all marks attached to an object via connector */
      41                 :            : extern void fsnotify_destroy_marks(fsnotify_connp_t *connp);
      42                 :            : /* run the list of all marks associated with inode and destroy them */
      43                 :            : static inline void fsnotify_clear_marks_by_inode(struct inode *inode)
      44                 :            : {
      45                 :          3 :         fsnotify_destroy_marks(&inode->i_fsnotify_marks);
      46                 :            : }
      47                 :            : /* run the list of all marks associated with vfsmount and destroy them */
      48                 :            : static inline void fsnotify_clear_marks_by_mount(struct vfsmount *mnt)
      49                 :            : {
      50                 :          3 :         fsnotify_destroy_marks(&real_mount(mnt)->mnt_fsnotify_marks);
      51                 :            : }
      52                 :            : /* run the list of all marks associated with sb and destroy them */
      53                 :            : static inline void fsnotify_clear_marks_by_sb(struct super_block *sb)
      54                 :            : {
      55                 :          2 :         fsnotify_destroy_marks(&sb->s_fsnotify_marks);
      56                 :            : }
      57                 :            : 
      58                 :            : /*
      59                 :            :  * update the dentry->d_flags of all of inode's children to indicate if inode cares
      60                 :            :  * about events that happen to its children.
      61                 :            :  */
      62                 :            : extern void __fsnotify_update_child_dentry_flags(struct inode *inode);
      63                 :            : 
      64                 :            : /* allocate and destroy and event holder to attach events to notification/access queues */
      65                 :            : extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void);
      66                 :            : extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder);
      67                 :            : 
      68                 :            : #endif  /* __FS_NOTIFY_FSNOTIFY_H_ */
    

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