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-rw-r--r--include/linux/watch_queue.h3
-rw-r--r--kernel/watch_queue.c4
2 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/watch_queue.h b/include/linux/watch_queue.h
index c994d1b2cdba..3b9a40ae8bdb 100644
--- a/include/linux/watch_queue.h
+++ b/include/linux/watch_queue.h
@@ -28,7 +28,8 @@ struct watch_type_filter {
struct watch_filter {
union {
struct rcu_head rcu;
- unsigned long type_filter[2]; /* Bitmask of accepted types */
+ /* Bitmask of accepted types */
+ DECLARE_BITMAP(type_filter, WATCH_TYPE__NR);
};
u32 nr_filters; /* Number of filters */
struct watch_type_filter filters[];
diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c
index 9c9eb20dd2c5..427b0318e303 100644
--- a/kernel/watch_queue.c
+++ b/kernel/watch_queue.c
@@ -320,7 +320,7 @@ long watch_queue_set_filter(struct pipe_inode_info *pipe,
tf[i].info_mask & WATCH_INFO_LENGTH)
goto err_filter;
/* Ignore any unknown types */
- if (tf[i].type >= sizeof(wfilter->type_filter) * 8)
+ if (tf[i].type >= WATCH_TYPE__NR)
continue;
nr_filter++;
}
@@ -336,7 +336,7 @@ long watch_queue_set_filter(struct pipe_inode_info *pipe,
q = wfilter->filters;
for (i = 0; i < filter.nr_filters; i++) {
- if (tf[i].type >= sizeof(wfilter->type_filter) * BITS_PER_LONG)
+ if (tf[i].type >= WATCH_TYPE__NR)
continue;
q->type = tf[i].type;