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author | Pekka Enberg <penberg@kernel.org> | 2012-10-24 06:43:00 (GMT) |
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committer | Pekka Enberg <penberg@kernel.org> | 2012-10-24 06:43:00 (GMT) |
commit | b4f591c45f1de0f5b8ad8da508a892b571a53202 (patch) | |
tree | 28ab1a1786c555987ab50f1044143204f538a602 /mm/slub.c | |
parent | 837d678dc264c797c16f81cf56f615f7544891c1 (diff) | |
parent | 0d7561c61d76690ed84bd1016acc0fcbff063205 (diff) | |
download | linux-b4f591c45f1de0f5b8ad8da508a892b571a53202.tar.xz |
Merge branch 'slab/procfs' into slab/next
Diffstat (limited to 'mm/slub.c')
-rw-r--r-- | mm/slub.c | 77 |
1 files changed, 11 insertions, 66 deletions
@@ -5399,49 +5399,14 @@ __initcall(slab_sysfs_init); * The /proc/slabinfo ABI */ #ifdef CONFIG_SLABINFO -static void print_slabinfo_header(struct seq_file *m) -{ - seq_puts(m, "slabinfo - version: 2.1\n"); - seq_puts(m, "# name <active_objs> <num_objs> <object_size> " - "<objperslab> <pagesperslab>"); - seq_puts(m, " : tunables <limit> <batchcount> <sharedfactor>"); - seq_puts(m, " : slabdata <active_slabs> <num_slabs> <sharedavail>"); - seq_putc(m, '\n'); -} - -static void *s_start(struct seq_file *m, loff_t *pos) -{ - loff_t n = *pos; - - mutex_lock(&slab_mutex); - if (!n) - print_slabinfo_header(m); - - return seq_list_start(&slab_caches, *pos); -} - -static void *s_next(struct seq_file *m, void *p, loff_t *pos) -{ - return seq_list_next(p, &slab_caches, pos); -} - -static void s_stop(struct seq_file *m, void *p) -{ - mutex_unlock(&slab_mutex); -} - -static int s_show(struct seq_file *m, void *p) +void get_slabinfo(struct kmem_cache *s, struct slabinfo *sinfo) { unsigned long nr_partials = 0; unsigned long nr_slabs = 0; - unsigned long nr_inuse = 0; unsigned long nr_objs = 0; unsigned long nr_free = 0; - struct kmem_cache *s; int node; - s = list_entry(p, struct kmem_cache, list); - for_each_online_node(node) { struct kmem_cache_node *n = get_node(s, node); @@ -5454,41 +5419,21 @@ static int s_show(struct seq_file *m, void *p) nr_free += count_partial(n, count_free); } - nr_inuse = nr_objs - nr_free; - - seq_printf(m, "%-17s %6lu %6lu %6u %4u %4d", s->name, nr_inuse, - nr_objs, s->size, oo_objects(s->oo), - (1 << oo_order(s->oo))); - seq_printf(m, " : tunables %4u %4u %4u", 0, 0, 0); - seq_printf(m, " : slabdata %6lu %6lu %6lu", nr_slabs, nr_slabs, - 0UL); - seq_putc(m, '\n'); - return 0; + sinfo->active_objs = nr_objs - nr_free; + sinfo->num_objs = nr_objs; + sinfo->active_slabs = nr_slabs; + sinfo->num_slabs = nr_slabs; + sinfo->objects_per_slab = oo_objects(s->oo); + sinfo->cache_order = oo_order(s->oo); } -static const struct seq_operations slabinfo_op = { - .start = s_start, - .next = s_next, - .stop = s_stop, - .show = s_show, -}; - -static int slabinfo_open(struct inode *inode, struct file *file) +void slabinfo_show_stats(struct seq_file *m, struct kmem_cache *s) { - return seq_open(file, &slabinfo_op); } -static const struct file_operations proc_slabinfo_operations = { - .open = slabinfo_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - -static int __init slab_proc_init(void) +ssize_t slabinfo_write(struct file *file, const char __user *buffer, + size_t count, loff_t *ppos) { - proc_create("slabinfo", S_IRUSR, NULL, &proc_slabinfo_operations); - return 0; + return -EIO; } -module_init(slab_proc_init); #endif /* CONFIG_SLABINFO */ |