forked from luck/tmp_suning_uos_patched
slub: register slabinfo to procfs
We need to register slabinfo to procfs when CONFIG_SLUB is enabled to make the file actually visible to user-space. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -451,6 +451,20 @@ static const struct file_operations proc_slabstats_operations = {
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#endif
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#endif
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#ifdef CONFIG_SLUB
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static int slabinfo_open(struct inode *inode, struct file *file)
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{
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return seq_open(file, &slabinfo_op);
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}
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static const struct file_operations proc_slabinfo_operations = {
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.open = slabinfo_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release,
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};
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#endif
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static int show_stat(struct seq_file *p, void *v)
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{
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int i;
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@ -733,6 +747,9 @@ void __init proc_misc_init(void)
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#ifdef CONFIG_DEBUG_SLAB_LEAK
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create_seq_entry("slab_allocators", 0 ,&proc_slabstats_operations);
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#endif
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#endif
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#ifdef CONFIG_SLUB
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create_seq_entry("slabinfo", S_IWUSR|S_IRUGO, &proc_slabinfo_operations);
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#endif
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create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations);
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create_seq_entry("pagetypeinfo", S_IRUGO, &pagetypeinfo_file_ops);
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