diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/bio.c | 5 | ||||
| -rw-r--r-- | fs/proc/stat.c | 19 | ||||
| -rw-r--r-- | fs/seq_file.c | 14 |
3 files changed, 32 insertions, 6 deletions
@@ -26,8 +26,11 @@ #include <linux/mempool.h> #include <linux/workqueue.h> #include <linux/blktrace_api.h> +#include <trace/block.h> #include <scsi/sg.h> /* for struct sg_iovec */ +DEFINE_TRACE(block_split); + static struct kmem_cache *bio_slab __read_mostly; static mempool_t *bio_split_pool __read_mostly; @@ -1263,7 +1266,7 @@ struct bio_pair *bio_split(struct bio *bi, int first_sectors) if (!bp) return bp; - blk_add_trace_pdu_int(bdev_get_queue(bi->bi_bdev), BLK_TA_SPLIT, bi, + trace_block_split(bdev_get_queue(bi->bi_bdev), bi, bi->bi_sector + first_sectors); BUG_ON(bi->bi_vcnt != 1); diff --git a/fs/proc/stat.c b/fs/proc/stat.c index 81904f0..3cb9492 100644 --- a/fs/proc/stat.c +++ b/fs/proc/stat.c @@ -27,6 +27,7 @@ static int show_stat(struct seq_file *p, void *v) u64 sum = 0; struct timespec boottime; unsigned int per_irq_sum; + struct irq_desc *desc; user = nice = system = idle = iowait = irq = softirq = steal = cputime64_zero; @@ -44,10 +45,14 @@ static int show_stat(struct seq_file *p, void *v) softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq); steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal); guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest); - - for_each_irq_nr(j) + for_each_irq_nr(j) { +#ifdef CONFIG_SPARSE_IRQ + desc = irq_to_desc(j); + if (!desc) + continue; +#endif sum += kstat_irqs_cpu(j, i); - + } sum += arch_irq_stat_cpu(i); } sum += arch_irq_stat(); @@ -92,7 +97,13 @@ static int show_stat(struct seq_file *p, void *v) /* sum again ? it could be updated? */ for_each_irq_nr(j) { per_irq_sum = 0; - +#ifdef CONFIG_SPARSE_IRQ + desc = irq_to_desc(j); + if (!desc) { + seq_printf(p, " %u", per_irq_sum); + continue; + } +#endif for_each_possible_cpu(i) per_irq_sum += kstat_irqs_cpu(j, i); diff --git a/fs/seq_file.c b/fs/seq_file.c index eba2eab..16c2115 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -357,7 +357,18 @@ int seq_printf(struct seq_file *m, const char *f, ...) } EXPORT_SYMBOL(seq_printf); -static char *mangle_path(char *s, char *p, char *esc) +/** + * mangle_path - mangle and copy path to buffer beginning + * @s: buffer start + * @p: beginning of path in above buffer + * @esc: set of characters that need escaping + * + * Copy the path from @p to @s, replacing each occurrence of character from + * @esc with usual octal escape. + * Returns pointer past last written character in @s, or NULL in case of + * failure. + */ +char *mangle_path(char *s, char *p, char *esc) { while (s <= p) { char c = *p++; @@ -376,6 +387,7 @@ static char *mangle_path(char *s, char *p, char *esc) } return NULL; } +EXPORT_SYMBOL(mangle_path); /* * return the absolute path of 'dentry' residing in mount 'mnt'. |