From 3eda20118000941e7e8994fc5fac8706d8c10f00 Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Sat, 18 Oct 2008 20:28:19 -0700 Subject: [PATCH] seq_file: add seq_cpumask_list(), seq_nodemask_list() seq_cpumask_list(), seq_nodemask_list() are very like seq_cpumask(), seq_nodemask(), but they print human readable string. Signed-off-by: Lai Jiangshan Cc: Alexey Dobriyan Cc: Paul Menage Cc: Paul Jackson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/seq_file.c | 16 ++++++++++++++++ include/linux/seq_file.h | 13 +++++++++++++ 2 files changed, 29 insertions(+) diff --git a/fs/seq_file.c b/fs/seq_file.c index 11c85fec6b4f..eba2eabcd2b8 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -465,6 +465,22 @@ int seq_bitmap(struct seq_file *m, unsigned long *bits, unsigned int nr_bits) } EXPORT_SYMBOL(seq_bitmap); +int seq_bitmap_list(struct seq_file *m, unsigned long *bits, + unsigned int nr_bits) +{ + if (m->count < m->size) { + int len = bitmap_scnlistprintf(m->buf + m->count, + m->size - m->count, bits, nr_bits); + if (m->count + len < m->size) { + m->count += len; + return 0; + } + } + m->count = m->size; + return -1; +} +EXPORT_SYMBOL(seq_bitmap_list); + static void *single_start(struct seq_file *p, loff_t *pos) { return NULL + (*pos == 0); diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h index a1783b229ef4..dc50bcc282a8 100644 --- a/include/linux/seq_file.h +++ b/include/linux/seq_file.h @@ -60,6 +60,19 @@ static inline int seq_nodemask(struct seq_file *m, nodemask_t *mask) return seq_bitmap(m, mask->bits, MAX_NUMNODES); } +int seq_bitmap_list(struct seq_file *m, unsigned long *bits, + unsigned int nr_bits); + +static inline int seq_cpumask_list(struct seq_file *m, cpumask_t *mask) +{ + return seq_bitmap_list(m, mask->bits, NR_CPUS); +} + +static inline int seq_nodemask_list(struct seq_file *m, nodemask_t *mask) +{ + return seq_bitmap_list(m, mask->bits, MAX_NUMNODES); +} + int single_open(struct file *, int (*)(struct seq_file *, void *), void *); int single_release(struct inode *, struct file *); void *__seq_open_private(struct file *, const struct seq_operations *, int);