fs/notify/inotify/inotify.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #include <linux/fsnotify_backend.h>
   3 #include <linux/inotify.h>
   4 #include <linux/slab.h> /* struct kmem_cache */
   5
   6 struct inotify_event_info {
   7         struct fsnotify_event fse;
   8         int wd;
   9         u32 sync_cookie;
  10         int name_len;
  11         char name[];
  12 };
  13
  14 struct inotify_inode_mark {
  15         struct fsnotify_mark fsn_mark;
  16         int wd;
  17 };
  18
  19 static inline struct inotify_event_info *INOTIFY_E(struct fsnotify_event *fse)
  20 {
  21         return container_of(fse, struct inotify_event_info, fse);
  22 }
  23
  24 extern void inotify_ignored_and_remove_idr(struct fsnotify_mark *fsn_mark,
  25                                            struct fsnotify_group *group);
  26 extern int inotify_handle_event(struct fsnotify_group *group,
  27                                 struct inode *inode,
  28                                 struct fsnotify_mark *inode_mark,
  29                                 struct fsnotify_mark *vfsmount_mark,
  30                                 u32 mask, const void *data, int data_type,
  31                                 const unsigned char *file_name, u32 cookie,
  32                                 struct fsnotify_iter_info *iter_info);
  33
  34 extern const struct fsnotify_ops inotify_fsnotify_ops;
  35 extern struct kmem_cache *inotify_inode_mark_cachep;
  36
  37 #ifdef CONFIG_INOTIFY_USER
  38 static inline void dec_inotify_instances(struct ucounts *ucounts)
  39 {
  40         dec_ucount(ucounts, UCOUNT_INOTIFY_INSTANCES);
  41 }
  42
  43 static inline struct ucounts *inc_inotify_watches(struct ucounts *ucounts)
  44 {
  45         return inc_ucount(ucounts->ns, ucounts->uid, UCOUNT_INOTIFY_WATCHES);
  46 }
  47
  48 static inline void dec_inotify_watches(struct ucounts *ucounts)
  49 {
  50         dec_ucount(ucounts, UCOUNT_INOTIFY_WATCHES);
  51 }
  52 #endif