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Commit 9fe6a50fb764f508dd2de47a66e62e51388791fb

Authored by Maarten Lankhorst
Committed by Chris Mason
1 parent 3ed4498caf

btrfs: Remove unused sysfs code 

Removes code no longer used. The sysfs file itself is kept, because the
btrfs developers expressed interest in putting new entries to sysfs.

Signed-off-by: Maarten Lankhorst <m.b.lankhorst@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

Showing 3 changed files with 0 additions and 148 deletions Side-by-side Diff

... ... @@ -1195,7 +1195,6 @@
1195 1195 struct btrfs_key defrag_max;
1196 1196 int defrag_running;
1197 1197 char *name;
1198   - int in_sysfs;
1199 1198  
1200 1199 /* the dirty list is only used by non-reference counted roots */
1201 1200 struct list_head dirty_list;
... ... @@ -1044,7 +1044,6 @@
1044 1044 root->last_trans = 0;
1045 1045 root->highest_objectid = 0;
1046 1046 root->name = NULL;
1047   - root->in_sysfs = 0;
1048 1047 root->inode_tree = RB_ROOT;
1049 1048 INIT_RADIX_TREE(&root->delayed_nodes_tree, GFP_ATOMIC);
1050 1049 root->block_rsv = NULL;
... ... @@ -28,152 +28,6 @@
28 28 #include "disk-io.h"
29 29 #include "transaction.h"
30 30  
31   -static ssize_t root_blocks_used_show(struct btrfs_root *root, char *buf)
32   -{
33   - return snprintf(buf, PAGE_SIZE, "%llu\n",
34   - (unsigned long long)btrfs_root_used(&root->root_item));
35   -}
36   -
37   -static ssize_t root_block_limit_show(struct btrfs_root *root, char *buf)
38   -{
39   - return snprintf(buf, PAGE_SIZE, "%llu\n",
40   - (unsigned long long)btrfs_root_limit(&root->root_item));
41   -}
42   -
43   -static ssize_t super_blocks_used_show(struct btrfs_fs_info *fs, char *buf)
44   -{
45   -
46   - return snprintf(buf, PAGE_SIZE, "%llu\n",
47   - (unsigned long long)btrfs_super_bytes_used(&fs->super_copy));
48   -}
49   -
50   -static ssize_t super_total_blocks_show(struct btrfs_fs_info *fs, char *buf)
51   -{
52   - return snprintf(buf, PAGE_SIZE, "%llu\n",
53   - (unsigned long long)btrfs_super_total_bytes(&fs->super_copy));
54   -}
55   -
56   -static ssize_t super_blocksize_show(struct btrfs_fs_info *fs, char *buf)
57   -{
58   - return snprintf(buf, PAGE_SIZE, "%llu\n",
59   - (unsigned long long)btrfs_super_sectorsize(&fs->super_copy));
60   -}
61   -
62   -/* this is for root attrs (subvols/snapshots) */
63   -struct btrfs_root_attr {
64   - struct attribute attr;
65   - ssize_t (*show)(struct btrfs_root *, char *);
66   - ssize_t (*store)(struct btrfs_root *, const char *, size_t);
67   -};
68   -
69   -#define ROOT_ATTR(name, mode, show, store) \
70   -static struct btrfs_root_attr btrfs_root_attr_##name = __ATTR(name, mode, \
71   - show, store)
72   -
73   -ROOT_ATTR(blocks_used, 0444, root_blocks_used_show, NULL);
74   -ROOT_ATTR(block_limit, 0644, root_block_limit_show, NULL);
75   -
76   -static struct attribute *btrfs_root_attrs[] = {
77   - &btrfs_root_attr_blocks_used.attr,
78   - &btrfs_root_attr_block_limit.attr,
79   - NULL,
80   -};
81   -
82   -/* this is for super attrs (actual full fs) */
83   -struct btrfs_super_attr {
84   - struct attribute attr;
85   - ssize_t (*show)(struct btrfs_fs_info *, char *);
86   - ssize_t (*store)(struct btrfs_fs_info *, const char *, size_t);
87   -};
88   -
89   -#define SUPER_ATTR(name, mode, show, store) \
90   -static struct btrfs_super_attr btrfs_super_attr_##name = __ATTR(name, mode, \
91   - show, store)
92   -
93   -SUPER_ATTR(blocks_used, 0444, super_blocks_used_show, NULL);
94   -SUPER_ATTR(total_blocks, 0444, super_total_blocks_show, NULL);
95   -SUPER_ATTR(blocksize, 0444, super_blocksize_show, NULL);
96   -
97   -static struct attribute *btrfs_super_attrs[] = {
98   - &btrfs_super_attr_blocks_used.attr,
99   - &btrfs_super_attr_total_blocks.attr,
100   - &btrfs_super_attr_blocksize.attr,
101   - NULL,
102   -};
103   -
104   -static ssize_t btrfs_super_attr_show(struct kobject *kobj,
105   - struct attribute *attr, char *buf)
106   -{
107   - struct btrfs_fs_info *fs = container_of(kobj, struct btrfs_fs_info,
108   - super_kobj);
109   - struct btrfs_super_attr *a = container_of(attr,
110   - struct btrfs_super_attr,
111   - attr);
112   -
113   - return a->show ? a->show(fs, buf) : 0;
114   -}
115   -
116   -static ssize_t btrfs_super_attr_store(struct kobject *kobj,
117   - struct attribute *attr,
118   - const char *buf, size_t len)
119   -{
120   - struct btrfs_fs_info *fs = container_of(kobj, struct btrfs_fs_info,
121   - super_kobj);
122   - struct btrfs_super_attr *a = container_of(attr,
123   - struct btrfs_super_attr,
124   - attr);
125   -
126   - return a->store ? a->store(fs, buf, len) : 0;
127   -}
128   -
129   -static ssize_t btrfs_root_attr_show(struct kobject *kobj,
130   - struct attribute *attr, char *buf)
131   -{
132   - struct btrfs_root *root = container_of(kobj, struct btrfs_root,
133   - root_kobj);
134   - struct btrfs_root_attr *a = container_of(attr,
135   - struct btrfs_root_attr,
136   - attr);
137   -
138   - return a->show ? a->show(root, buf) : 0;
139   -}
140   -
141   -static ssize_t btrfs_root_attr_store(struct kobject *kobj,
142   - struct attribute *attr,
143   - const char *buf, size_t len)
144   -{
145   - struct btrfs_root *root = container_of(kobj, struct btrfs_root,
146   - root_kobj);
147   - struct btrfs_root_attr *a = container_of(attr,
148   - struct btrfs_root_attr,
149   - attr);
150   - return a->store ? a->store(root, buf, len) : 0;
151   -}
152   -
153   -static void btrfs_super_release(struct kobject *kobj)
154   -{
155   - struct btrfs_fs_info *fs = container_of(kobj, struct btrfs_fs_info,
156   - super_kobj);
157   - complete(&fs->kobj_unregister);
158   -}
159   -
160   -static void btrfs_root_release(struct kobject *kobj)
161   -{
162   - struct btrfs_root *root = container_of(kobj, struct btrfs_root,
163   - root_kobj);
164   - complete(&root->kobj_unregister);
165   -}
166   -
167   -static const struct sysfs_ops btrfs_super_attr_ops = {
168   - .show = btrfs_super_attr_show,
169   - .store = btrfs_super_attr_store,
170   -};
171   -
172   -static const struct sysfs_ops btrfs_root_attr_ops = {
173   - .show = btrfs_root_attr_show,
174   - .store = btrfs_root_attr_store,
175   -};
176   -
177 31 /* /sys/fs/btrfs/ entry */
178 32 static struct kset *btrfs_kset;
179 33