sysfs.h 1.3 KB

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  1. /*
  2. * fs/sysfs/sysfs.h - sysfs internal header file
  3. *
  4. * Copyright (c) 2001-3 Patrick Mochel
  5. * Copyright (c) 2007 SUSE Linux Products GmbH
  6. * Copyright (c) 2007 Tejun Heo <teheo@suse.de>
  7. *
  8. * This file is released under the GPLv2.
  9. */
  10. #ifndef __SYSFS_INTERNAL_H
  11. #define __SYSFS_INTERNAL_H
  12. #include "../kernfs/kernfs-internal.h"
  13. #include <linux/sysfs.h>
  14. /*
  15. * mount.c
  16. */
  17. struct sysfs_super_info {
  18. /*
  19. * Each sb is associated with one namespace tag, currently the network
  20. * namespace of the task which mounted this sysfs instance. If multiple
  21. * tags become necessary, make the following an array and compare
  22. * sysfs_dirent tag against every entry.
  23. */
  24. const void *ns;
  25. };
  26. #define sysfs_info(SB) ((struct sysfs_super_info *)(SB->s_fs_info))
  27. extern struct sysfs_dirent sysfs_root;
  28. extern struct kmem_cache *sysfs_dir_cachep;
  29. /*
  30. * dir.c
  31. */
  32. extern spinlock_t sysfs_symlink_target_lock;
  33. void sysfs_warn_dup(struct sysfs_dirent *parent, const char *name);
  34. /*
  35. * file.c
  36. */
  37. int sysfs_add_file(struct sysfs_dirent *dir_sd,
  38. const struct attribute *attr, bool is_bin);
  39. int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd,
  40. const struct attribute *attr, bool is_bin,
  41. umode_t amode, const void *ns);
  42. /*
  43. * symlink.c
  44. */
  45. int sysfs_create_link_sd(struct sysfs_dirent *sd, struct kobject *target,
  46. const char *name);
  47. #endif /* __SYSFS_INTERNAL_H */