diff options
Diffstat (limited to 'mm/slab.c')
| -rw-r--r-- | mm/slab.c | 52 |
1 files changed, 50 insertions, 2 deletions
@@ -95,6 +95,7 @@ #include <linux/init.h> #include <linux/compiler.h> #include <linux/cpuset.h> +#include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/notifier.h> #include <linux/kallsyms.h> @@ -4258,7 +4259,7 @@ static int s_show(struct seq_file *m, void *p) * + further values on SMP and with statistics enabled */ -const struct seq_operations slabinfo_op = { +static const struct seq_operations slabinfo_op = { .start = s_start, .next = s_next, .stop = s_stop, @@ -4315,6 +4316,19 @@ ssize_t slabinfo_write(struct file *file, const char __user * buffer, return res; } +static int slabinfo_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &slabinfo_op); +} + +static const struct file_operations proc_slabinfo_operations = { + .open = slabinfo_open, + .read = seq_read, + .write = slabinfo_write, + .llseek = seq_lseek, + .release = seq_release, +}; + #ifdef CONFIG_DEBUG_SLAB_LEAK static void *leaks_start(struct seq_file *m, loff_t *pos) @@ -4443,13 +4457,47 @@ static int leaks_show(struct seq_file *m, void *p) return 0; } -const struct seq_operations slabstats_op = { +static const struct seq_operations slabstats_op = { .start = leaks_start, .next = s_next, .stop = s_stop, .show = leaks_show, }; + +static int slabstats_open(struct inode *inode, struct file *file) +{ + unsigned long *n = kzalloc(PAGE_SIZE, GFP_KERNEL); + int ret = -ENOMEM; + if (n) { + ret = seq_open(file, &slabstats_op); + if (!ret) { + struct seq_file *m = file->private_data; + *n = PAGE_SIZE / (2 * sizeof(unsigned long)); + m->private = n; + n = NULL; + } + kfree(n); + } + return ret; +} + +static const struct file_operations proc_slabstats_operations = { + .open = slabstats_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release_private, +}; +#endif + +static int __init slab_proc_init(void) +{ + proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations); +#ifdef CONFIG_DEBUG_SLAB_LEAK + proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations); #endif + return 0; +} +module_init(slab_proc_init); #endif /** |
