diff options
Diffstat (limited to 'drivers/ieee1394/nodemgr.c')
| -rw-r--r-- | drivers/ieee1394/nodemgr.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c index 948f1b8c423..50c71e17de7 100644 --- a/drivers/ieee1394/nodemgr.c +++ b/drivers/ieee1394/nodemgr.c @@ -8,6 +8,7 @@ * directory of the kernel sources for details. */ +#include <linux/bitmap.h> #include <linux/kernel.h> #include <linux/config.h> #include <linux/list.h> @@ -334,10 +335,12 @@ static ssize_t fw_show_ne_bus_options(struct device *dev, struct device_attribut static DEVICE_ATTR(bus_options,S_IRUGO,fw_show_ne_bus_options,NULL); +/* tlabels_free, tlabels_allocations, tlabels_mask are read non-atomically + * here, therefore displayed values may be occasionally wrong. */ static ssize_t fw_show_ne_tlabels_free(struct device *dev, struct device_attribute *attr, char *buf) { struct node_entry *ne = container_of(dev, struct node_entry, device); - return sprintf(buf, "%d\n", atomic_read(&ne->tpool->count.count) + 1); + return sprintf(buf, "%d\n", 64 - bitmap_weight(ne->tpool->pool, 64)); } static DEVICE_ATTR(tlabels_free,S_IRUGO,fw_show_ne_tlabels_free,NULL); |