diff options
Diffstat (limited to 'include/linux/backing-dev-defs.h')
| -rw-r--r-- | include/linux/backing-dev-defs.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h index dfa6d4f08b99..b90dff08edb0 100644 --- a/include/linux/backing-dev-defs.h +++ b/include/linux/backing-dev-defs.h @@ -10,6 +10,7 @@ #include <linux/flex_proportions.h> #include <linux/timer.h> #include <linux/workqueue.h> +#include <linux/kref.h> struct page; struct device; @@ -136,11 +137,13 @@ struct bdi_writeback { struct backing_dev_info { struct list_head bdi_list; unsigned long ra_pages; /* max readahead in PAGE_CACHE_SIZE units */ + unsigned long io_pages; /* max allowed IO size */ unsigned int capabilities; /* Device capabilities */ congested_fn *congested_fn; /* Function pointer if device is md/dm */ void *congested_data; /* Pointer to aux data for congested func */ char *name; + struct kref refcnt; /* Reference counter for the structure */ unsigned int min_ratio; unsigned int max_ratio, max_prop_frac; |