diff options
Diffstat (limited to 'arch/ia64/sn/kernel/sn2/prominfo_proc.c')
| -rw-r--r-- | arch/ia64/sn/kernel/sn2/prominfo_proc.c | 146 |
1 files changed, 52 insertions, 94 deletions
diff --git a/arch/ia64/sn/kernel/sn2/prominfo_proc.c b/arch/ia64/sn/kernel/sn2/prominfo_proc.c index 20b88cb1881a..daa8d6badb16 100644 --- a/arch/ia64/sn/kernel/sn2/prominfo_proc.c +++ b/arch/ia64/sn/kernel/sn2/prominfo_proc.c @@ -11,6 +11,7 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/proc_fs.h> +#include <linux/seq_file.h> #include <linux/nodemask.h> #include <asm/io.h> #include <asm/sn/sn_sal.h> @@ -101,18 +102,18 @@ get_fit_entry(unsigned long nasid, int index, unsigned long *fentry, /* * These two routines display the FIT table for each node. */ -static int dump_fit_entry(char *page, unsigned long *fentry) +static void dump_fit_entry(struct seq_file *m, unsigned long *fentry) { unsigned type; type = FIT_TYPE(fentry[1]); - return sprintf(page, "%02x %-25s %x.%02x %016lx %u\n", - type, - fit_type_name(type), - FIT_MAJOR(fentry[1]), FIT_MINOR(fentry[1]), - fentry[0], - /* mult by sixteen to get size in bytes */ - (unsigned)(fentry[1] & 0xffffff) * 16); + seq_printf(m, "%02x %-25s %x.%02x %016lx %u\n", + type, + fit_type_name(type), + FIT_MAJOR(fentry[1]), FIT_MINOR(fentry[1]), + fentry[0], + /* mult by sixteen to get size in bytes */ + (unsigned)(fentry[1] & 0xffffff) * 16); } @@ -124,31 +125,39 @@ static int dump_fit_entry(char *page, unsigned long *fentry) * OK except for 4kB pages (and no one is going to do that on SN * anyway). */ -static int -dump_fit(char *page, unsigned long nasid) +static int proc_fit_show(struct seq_file *m, void *v) { + unsigned long nasid = (unsigned long)m->private; unsigned long fentry[2]; int index; - char *p; - p = page; for (index=0;;index++) { BUG_ON(index * 60 > PAGE_SIZE); if (get_fit_entry(nasid, index, fentry, NULL, 0)) break; - p += dump_fit_entry(p, fentry); + dump_fit_entry(m, fentry); } + return 0; +} - return p - page; +static int proc_fit_open(struct inode *inode, struct file *file) +{ + return single_open(file, proc_fit_show, PDE_DATA(inode)); } -static int -dump_version(char *page, unsigned long nasid) +static const struct file_operations proc_fit_fops = { + .open = proc_fit_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +static int proc_version_show(struct seq_file *m, void *v) { + unsigned long nasid = (unsigned long)m->private; unsigned long fentry[2]; char banner[128]; int index; - int len; for (index = 0; ; index++) { if (get_fit_entry(nasid, index, fentry, banner, @@ -158,56 +167,24 @@ dump_version(char *page, unsigned long nasid) break; } - len = sprintf(page, "%x.%02x\n", FIT_MAJOR(fentry[1]), - FIT_MINOR(fentry[1])); - page += len; + seq_printf(m, "%x.%02x\n", FIT_MAJOR(fentry[1]), FIT_MINOR(fentry[1])); if (banner[0]) - len += snprintf(page, PAGE_SIZE-len, "%s\n", banner); - - return len; -} - -/* same as in proc_misc.c */ -static int -proc_calc_metrics(char *page, char **start, off_t off, int count, int *eof, - int len) -{ - if (len <= off + count) - *eof = 1; - *start = page + off; - len -= off; - if (len > count) - len = count; - if (len < 0) - len = 0; - return len; + seq_printf(m, "%s\n", banner); + return 0; } -static int -read_version_entry(char *page, char **start, off_t off, int count, int *eof, - void *data) +static int proc_version_open(struct inode *inode, struct file *file) { - int len; - - /* data holds the NASID of the node */ - len = dump_version(page, (unsigned long)data); - len = proc_calc_metrics(page, start, off, count, eof, len); - return len; + return single_open(file, proc_version_show, PDE_DATA(inode)); } -static int -read_fit_entry(char *page, char **start, off_t off, int count, int *eof, - void *data) -{ - int len; - - /* data holds the NASID of the node */ - len = dump_fit(page, (unsigned long)data); - len = proc_calc_metrics(page, start, off, count, eof, len); - - return len; -} +static const struct file_operations proc_version_fops = { + .open = proc_version_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; /* module entry points */ int __init prominfo_init(void); @@ -216,58 +193,39 @@ void __exit prominfo_exit(void); module_init(prominfo_init); module_exit(prominfo_exit); -static struct proc_dir_entry **proc_entries; -static struct proc_dir_entry *sgi_prominfo_entry; - #define NODE_NAME_LEN 11 int __init prominfo_init(void) { - struct proc_dir_entry **entp; + struct proc_dir_entry *sgi_prominfo_entry; cnodeid_t cnodeid; - unsigned long nasid; - int size; - char name[NODE_NAME_LEN]; if (!ia64_platform_is("sn2")) return 0; - size = num_online_nodes() * sizeof(struct proc_dir_entry *); - proc_entries = kzalloc(size, GFP_KERNEL); - if (!proc_entries) - return -ENOMEM; - sgi_prominfo_entry = proc_mkdir("sgi_prominfo", NULL); + if (!sgi_prominfo_entry) + return -ENOMEM; - entp = proc_entries; for_each_online_node(cnodeid) { + struct proc_dir_entry *dir; + unsigned long nasid; + char name[NODE_NAME_LEN]; + sprintf(name, "node%d", cnodeid); - *entp = proc_mkdir(name, sgi_prominfo_entry); + dir = proc_mkdir(name, sgi_prominfo_entry); + if (!dir) + continue; nasid = cnodeid_to_nasid(cnodeid); - create_proc_read_entry("fit", 0, *entp, read_fit_entry, - (void *)nasid); - create_proc_read_entry("version", 0, *entp, - read_version_entry, (void *)nasid); - entp++; + proc_create_data("fit", 0, dir, + &proc_fit_fops, (void *)nasid); + proc_create_data("version", 0, dir, + &proc_version_fops, (void *)nasid); } - return 0; } void __exit prominfo_exit(void) { - struct proc_dir_entry **entp; - unsigned int cnodeid; - char name[NODE_NAME_LEN]; - - entp = proc_entries; - for_each_online_node(cnodeid) { - remove_proc_entry("fit", *entp); - remove_proc_entry("version", *entp); - sprintf(name, "node%d", cnodeid); - remove_proc_entry(name, sgi_prominfo_entry); - entp++; - } - remove_proc_entry("sgi_prominfo", NULL); - kfree(proc_entries); + remove_proc_subtree("sgi_prominfo", NULL); } |