#ifndef _BTRFS_SYSFS_H_ #define _BTRFS_SYSFS_H_ /* * Data exported through sysfs */ extern u64 btrfs_debugfs_test; enum btrfs_feature_set { FEAT_COMPAT, FEAT_COMPAT_RO, FEAT_INCOMPAT, FEAT_MAX }; #define __INIT_KOBJ_ATTR(_name, _mode, _show, _store) \ { \ .attr = { .name = __stringify(_name), .mode = _mode }, \ .show = _show, \ .store = _store, \ } #define BTRFS_ATTR_RW(_name, _show, _store) \ static struct kobj_attribute btrfs_attr_##_name = \ __INIT_KOBJ_ATTR(_name, 0644, _show, _store) #define BTRFS_ATTR(_name, _show) \ static struct kobj_attribute btrfs_attr_##_name = \ __INIT_KOBJ_ATTR(_name, 0444, _show, NULL) #define BTRFS_ATTR_PTR(_name) (&btrfs_attr_##_name.attr) #define BTRFS_RAID_ATTR(_name, _show) \ static struct kobj_attribute btrfs_raid_attr_##_name = \ __INIT_KOBJ_ATTR(_name, 0444, _show, NULL) #define BTRFS_RAID_ATTR_PTR(_name) (&btrfs_raid_attr_##_name.attr) struct btrfs_feature_attr { struct kobj_attribute kobj_attr; enum btrfs_feature_set feature_set; u64 feature_bit; }; #define BTRFS_FEAT_ATTR(_name, _feature_set, _prefix, _feature_bit) \ static struct btrfs_feature_attr btrfs_attr_##_name = { \ .kobj_attr = __INIT_KOBJ_ATTR(_name, S_IRUGO, \ btrfs_feature_attr_show, \ btrfs_feature_attr_store), \ .feature_set = _feature_set, \ .feature_bit = _prefix ##_## _feature_bit, \ } #define BTRFS_FEAT_ATTR_PTR(_name) (&btrfs_attr_##_name.kobj_attr.attr) #define BTRFS_FEAT_ATTR_COMPAT(name, feature) \ BTRFS_FEAT_ATTR(name, FEAT_COMPAT, BTRFS_FEATURE_COMPAT, feature) #define BTRFS_FEAT_ATTR_COMPAT_RO(name, feature) \ BTRFS_FEAT_ATTR(name, FEAT_COMPAT_RO, BTRFS_FEATURE_COMPAT_RO, feature) #define BTRFS_FEAT_ATTR_INCOMPAT(name, feature) \ BTRFS_FEAT_ATTR(name, FEAT_INCOMPAT, BTRFS_FEATURE_INCOMPAT, feature) /* convert from attribute */ static inline struct btrfs_feature_attr * to_btrfs_feature_attr(struct kobj_attribute *a) { return container_of(a, struct btrfs_feature_attr, kobj_attr); } static inline struct kobj_attribute *attr_to_btrfs_attr(struct attribute *attr) { return container_of(attr, struct kobj_attribute, attr); } static inline struct btrfs_feature_attr * attr_to_btrfs_feature_attr(struct attribute *attr) { return to_btrfs_feature_attr(attr_to_btrfs_attr(attr)); } char *btrfs_printable_features(enum btrfs_feature_set set, u64 flags); extern const char * const btrfs_feature_set_names[3]; extern struct kobj_type space_info_ktype; extern struct kobj_type btrfs_raid_ktype; int btrfs_sysfs_add_device_link(struct btrfs_fs_devices *fs_devices, struct btrfs_device *one_device); int btrfs_sysfs_rm_device_link(struct btrfs_fs_devices *fs_devices, struct btrfs_device *one_device); int btrfs_sysfs_add_fsid(struct btrfs_fs_devices *fs_devs, struct kobject *parent); int btrfs_sysfs_add_device(struct btrfs_fs_devices *fs_devs); void btrfs_sysfs_remove_fsid(struct btrfs_fs_devices *fs_devs); void btrfs_sysfs_feature_update(struct btrfs_fs_info *fs_info, u64 bit, enum btrfs_feature_set set); #endif /* _BTRFS_SYSFS_H_ */ ssage (Expand)AuthorFilesLines 63e37d70556a89'>drm/drm_modeset_lock.h
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