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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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jfs: simplify procfs code
Use remove_proc_subtree to remove the whole subtree on cleanup, and unwind the registration loop into individual calls. Switch to use proc_create_seq where applicable. Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig
parent
247dbed8c9
commit
07a3b8ed48
@ -29,7 +29,6 @@
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#ifdef PROC_FS_JFS /* see jfs_debug.h */
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static struct proc_dir_entry *base;
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#ifdef CONFIG_JFS_DEBUG
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static int jfs_loglevel_proc_show(struct seq_file *m, void *v)
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{
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@ -66,43 +65,29 @@ static const struct file_operations jfs_loglevel_proc_fops = {
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};
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#endif
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static struct {
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const char *name;
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const struct file_operations *proc_fops;
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} Entries[] = {
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#ifdef CONFIG_JFS_STATISTICS
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{ "lmstats", &jfs_lmstats_proc_fops, },
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{ "txstats", &jfs_txstats_proc_fops, },
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{ "xtstat", &jfs_xtstat_proc_fops, },
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{ "mpstat", &jfs_mpstat_proc_fops, },
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#endif
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#ifdef CONFIG_JFS_DEBUG
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{ "TxAnchor", &jfs_txanchor_proc_fops, },
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{ "loglevel", &jfs_loglevel_proc_fops }
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#endif
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};
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#define NPROCENT ARRAY_SIZE(Entries)
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void jfs_proc_init(void)
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{
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int i;
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struct proc_dir_entry *base;
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if (!(base = proc_mkdir("fs/jfs", NULL)))
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base = proc_mkdir("fs/jfs", NULL);
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if (!base)
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return;
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for (i = 0; i < NPROCENT; i++)
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proc_create(Entries[i].name, 0, base, Entries[i].proc_fops);
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#ifdef CONFIG_JFS_STATISTICS
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proc_create_single("lmstats", 0, base, jfs_lmstats_proc_show);
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proc_create_single("txstats", 0, base, jfs_txstats_proc_show);
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proc_create_single("xtstat", 0, base, jfs_xtstat_proc_show);
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proc_create_single("mpstat", 0, base, jfs_mpstat_proc_show);
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#endif
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#ifdef CONFIG_JFS_DEBUG
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proc_create_single("TxAnchor", 0, base, jfs_txanchor_proc_show);
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proc_create("loglevel", 0, base, &jfs_loglevel_proc_fops);
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#endif
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}
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void jfs_proc_clean(void)
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{
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int i;
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if (base) {
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for (i = 0; i < NPROCENT; i++)
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remove_proc_entry(Entries[i].name, base);
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remove_proc_entry("fs/jfs", NULL);
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}
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remove_proc_subtree("fs/jfs", NULL);
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}
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#endif /* PROC_FS_JFS */
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@ -62,7 +62,7 @@ extern void jfs_proc_clean(void);
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extern int jfsloglevel;
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extern const struct file_operations jfs_txanchor_proc_fops;
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int jfs_txanchor_proc_show(struct seq_file *m, void *v);
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/* information message: e.g., configuration, major event */
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#define jfs_info(fmt, arg...) do { \
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@ -105,10 +105,10 @@ extern const struct file_operations jfs_txanchor_proc_fops;
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* ----------
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*/
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#ifdef CONFIG_JFS_STATISTICS
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extern const struct file_operations jfs_lmstats_proc_fops;
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extern const struct file_operations jfs_txstats_proc_fops;
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extern const struct file_operations jfs_mpstat_proc_fops;
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extern const struct file_operations jfs_xtstat_proc_fops;
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int jfs_lmstats_proc_show(struct seq_file *m, void *v);
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int jfs_txstats_proc_show(struct seq_file *m, void *v);
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int jfs_mpstat_proc_show(struct seq_file *m, void *v);
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int jfs_xtstat_proc_show(struct seq_file *m, void *v);
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#define INCREMENT(x) ((x)++)
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#define DECREMENT(x) ((x)--)
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@ -2493,7 +2493,7 @@ int lmLogFormat(struct jfs_log *log, s64 logAddress, int logSize)
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}
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#ifdef CONFIG_JFS_STATISTICS
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static int jfs_lmstats_proc_show(struct seq_file *m, void *v)
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int jfs_lmstats_proc_show(struct seq_file *m, void *v)
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{
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seq_printf(m,
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"JFS Logmgr stats\n"
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@ -2510,16 +2510,4 @@ static int jfs_lmstats_proc_show(struct seq_file *m, void *v)
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lmStat.partial_page);
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return 0;
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}
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static int jfs_lmstats_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, jfs_lmstats_proc_show, NULL);
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}
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const struct file_operations jfs_lmstats_proc_fops = {
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.open = jfs_lmstats_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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#endif /* CONFIG_JFS_STATISTICS */
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@ -815,7 +815,7 @@ void __invalidate_metapages(struct inode *ip, s64 addr, int len)
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}
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#ifdef CONFIG_JFS_STATISTICS
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static int jfs_mpstat_proc_show(struct seq_file *m, void *v)
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int jfs_mpstat_proc_show(struct seq_file *m, void *v)
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{
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seq_printf(m,
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"JFS Metapage statistics\n"
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@ -828,16 +828,4 @@ static int jfs_mpstat_proc_show(struct seq_file *m, void *v)
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mpStat.lockwait);
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return 0;
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}
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static int jfs_mpstat_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, jfs_mpstat_proc_show, NULL);
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}
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const struct file_operations jfs_mpstat_proc_fops = {
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.open = jfs_mpstat_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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#endif
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@ -2998,7 +2998,7 @@ int jfs_sync(void *arg)
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}
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#if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_DEBUG)
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static int jfs_txanchor_proc_show(struct seq_file *m, void *v)
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int jfs_txanchor_proc_show(struct seq_file *m, void *v)
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{
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char *freewait;
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char *freelockwait;
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@ -3032,22 +3032,10 @@ static int jfs_txanchor_proc_show(struct seq_file *m, void *v)
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list_empty(&TxAnchor.unlock_queue) ? "" : "not ");
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return 0;
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}
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static int jfs_txanchor_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, jfs_txanchor_proc_show, NULL);
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}
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const struct file_operations jfs_txanchor_proc_fops = {
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.open = jfs_txanchor_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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#endif
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#if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_STATISTICS)
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static int jfs_txstats_proc_show(struct seq_file *m, void *v)
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int jfs_txstats_proc_show(struct seq_file *m, void *v)
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{
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seq_printf(m,
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"JFS TxStats\n"
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@ -3072,16 +3060,4 @@ static int jfs_txstats_proc_show(struct seq_file *m, void *v)
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TxStat.txLockAlloc_freelock);
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return 0;
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}
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static int jfs_txstats_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, jfs_txstats_proc_show, NULL);
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}
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const struct file_operations jfs_txstats_proc_fops = {
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.open = jfs_txstats_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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#endif
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@ -3874,7 +3874,7 @@ s64 xtTruncate_pmap(tid_t tid, struct inode *ip, s64 committed_size)
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}
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#ifdef CONFIG_JFS_STATISTICS
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static int jfs_xtstat_proc_show(struct seq_file *m, void *v)
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int jfs_xtstat_proc_show(struct seq_file *m, void *v)
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{
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seq_printf(m,
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"JFS Xtree statistics\n"
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@ -3887,16 +3887,4 @@ static int jfs_xtstat_proc_show(struct seq_file *m, void *v)
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xtStat.split);
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return 0;
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}
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static int jfs_xtstat_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, jfs_xtstat_proc_show, NULL);
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}
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const struct file_operations jfs_xtstat_proc_fops = {
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.open = jfs_xtstat_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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#endif
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