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authorTheodore Ts'o <tytso@mit.edu>2015-09-23 12:46:17 -0400
committerTheodore Ts'o <tytso@mit.edu>2015-09-23 12:46:17 -0400
commitebd173beb8db5b8b315fa1c5bbac86c54059397a (patch)
tree2150c4685e1b44c0435632ea27bd417293d999f7 /fs/ext4/extents_status.c
parent76d33bca5581b1dd5c3157fa168db849a784ada4 (diff)
downloadlinux-ebd173beb8db5b8b315fa1c5bbac86c54059397a.tar.bz2
ext4: move procfs registration code to fs/ext4/sysfs.c
This allows us to refactor the procfs code, which saves a bit of compiled space. More importantly it isolates most of the procfs support code into a single file, so it's easier to #ifdef it out if the proc file system has been disabled. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/extents_status.c')
-rw-r--r--fs/ext4/extents_status.c60
1 files changed, 2 insertions, 58 deletions
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index 26724aeece73..ac748b3af1c1 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -1089,20 +1089,9 @@ static unsigned long ext4_es_scan(struct shrinker *shrink,
return nr_shrunk;
}
-static void *ext4_es_seq_shrinker_info_start(struct seq_file *seq, loff_t *pos)
+int ext4_seq_es_shrinker_info_show(struct seq_file *seq, void *v)
{
- return *pos ? NULL : SEQ_START_TOKEN;
-}
-
-static void *
-ext4_es_seq_shrinker_info_next(struct seq_file *seq, void *v, loff_t *pos)
-{
- return NULL;
-}
-
-static int ext4_es_seq_shrinker_info_show(struct seq_file *seq, void *v)
-{
- struct ext4_sb_info *sbi = seq->private;
+ struct ext4_sb_info *sbi = EXT4_SB((struct super_block *) seq->private);
struct ext4_es_stats *es_stats = &sbi->s_es_stats;
struct ext4_inode_info *ei, *max = NULL;
unsigned int inode_cnt = 0;
@@ -1143,45 +1132,6 @@ static int ext4_es_seq_shrinker_info_show(struct seq_file *seq, void *v)
return 0;
}
-static void ext4_es_seq_shrinker_info_stop(struct seq_file *seq, void *v)
-{
-}
-
-static const struct seq_operations ext4_es_seq_shrinker_info_ops = {
- .start = ext4_es_seq_shrinker_info_start,
- .next = ext4_es_seq_shrinker_info_next,
- .stop = ext4_es_seq_shrinker_info_stop,
- .show = ext4_es_seq_shrinker_info_show,
-};
-
-static int
-ext4_es_seq_shrinker_info_open(struct inode *inode, struct file *file)
-{
- int ret;
-
- ret = seq_open(file, &ext4_es_seq_shrinker_info_ops);
- if (!ret) {
- struct seq_file *m = file->private_data;
- m->private = PDE_DATA(inode);
- }
-
- return ret;
-}
-
-static int
-ext4_es_seq_shrinker_info_release(struct inode *inode, struct file *file)
-{
- return seq_release(inode, file);
-}
-
-static const struct file_operations ext4_es_seq_shrinker_info_fops = {
- .owner = THIS_MODULE,
- .open = ext4_es_seq_shrinker_info_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = ext4_es_seq_shrinker_info_release,
-};
-
int ext4_es_register_shrinker(struct ext4_sb_info *sbi)
{
int err;
@@ -1210,10 +1160,6 @@ int ext4_es_register_shrinker(struct ext4_sb_info *sbi)
if (err)
goto err2;
- if (sbi->s_proc)
- proc_create_data("es_shrinker_info", S_IRUGO, sbi->s_proc,
- &ext4_es_seq_shrinker_info_fops, sbi);
-
return 0;
err2:
@@ -1225,8 +1171,6 @@ err1:
void ext4_es_unregister_shrinker(struct ext4_sb_info *sbi)
{
- if (sbi->s_proc)
- remove_proc_entry("es_shrinker_info", sbi->s_proc);
percpu_counter_destroy(&sbi->s_es_stats.es_stats_all_cnt);
percpu_counter_destroy(&sbi->s_es_stats.es_stats_shk_cnt);
unregister_shrinker(&sbi->s_es_shrinker);