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Commit 70fe8582 authored by threader's avatar threader Committed by Bernhard Thoben
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BACKPORT: as per https://lore.kernel.org/patchwork/patch/877341/ define... 

BACKPORT: as per https://lore.kernel.org/patchwork/patch/877341/ define DEFINE_SHOW_ATTRIBUTE helper
parent 900d7c8f

include/linux/seq_file.h

+14 −0
Original line number Diff line number Diff line
@@ -158,6 +158,20 @@ int seq_put_decimal_ull(struct seq_file *m, char delimiter, 
int seq_put_decimal_ll(struct seq_file *m, char delimiter,

			long long num);



#define DEFINE_SHOW_ATTRIBUTE(__name)					\

static int __name ## _open(struct inode *inode, struct file *file)	\

{									\

	return single_open(file, __name ## _show, inode->i_private);	\

}									\

									\

static const struct file_operations __name ## _fops = {			\

	.owner		= THIS_MODULE,					\

	.open		= __name ## _open,				\

	.read		= seq_read,					\

	.llseek		= seq_lseek,					\

	.release	= single_release,				\

}



static inline struct user_namespace *seq_user_ns(struct seq_file *seq)

{

#ifdef CONFIG_USER_NS