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| author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2008-10-18 20:28:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-20 08:52:39 -0700 |
| commit | 3eda20118000941e7e8994fc5fac8706d8c10f00 (patch) | |
| tree | 7873d4760af7801f8e5b95cc7d6b719894aad6f5 | |
| parent | 85dd030edb174376ef43bc95e5fae4755af1ec98 (diff) | |
| download | linux-3.10-3eda20118000941e7e8994fc5fac8706d8c10f00.tar.gz linux-3.10-3eda20118000941e7e8994fc5fac8706d8c10f00.tar.bz2 linux-3.10-3eda20118000941e7e8994fc5fac8706d8c10f00.zip | |
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 <laijs@cn.fujitsu.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Paul Menage <menage@google.com>
Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/seq_file.c | 16 | ||||
| -rw-r--r-- | include/linux/seq_file.h | 13 |
2 files changed, 29 insertions, 0 deletions
diff --git a/fs/seq_file.c b/fs/seq_file.c index 11c85fec6b4..eba2eabcd2b 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 a1783b229ef..dc50bcc282a 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); |