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-rw-r--r--fs/inotify.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/inotify.c b/fs/inotify.c
index a8a714e4814..27ebcac5e07 100644
--- a/fs/inotify.c
+++ b/fs/inotify.c
@@ -90,6 +90,7 @@ struct inotify_device {
unsigned int queue_size; /* size of the queue (bytes) */
unsigned int event_count; /* number of pending events */
unsigned int max_events; /* maximum number of events */
+ u32 last_wd; /* the last wd allocated */
};
/*
@@ -352,7 +353,7 @@ static int inotify_dev_get_wd(struct inotify_device *dev,
do {
if (unlikely(!idr_pre_get(&dev->idr, GFP_KERNEL)))
return -ENOSPC;
- ret = idr_get_new(&dev->idr, watch, &watch->wd);
+ ret = idr_get_new_above(&dev->idr, watch, dev->last_wd, &watch->wd);
} while (ret == -EAGAIN);
return ret;
@@ -401,6 +402,7 @@ static struct inotify_watch *create_watch(struct inotify_device *dev,
return ERR_PTR(ret);
}
+ dev->last_wd = ret;
watch->mask = mask;
atomic_set(&watch->count, 0);
INIT_LIST_HEAD(&watch->d_list);
@@ -899,6 +901,7 @@ asmlinkage long sys_inotify_init(void)
dev->queue_size = 0;
dev->max_events = inotify_max_queued_events;
dev->user = user;
+ dev->last_wd = 0;
atomic_set(&dev->count, 0);
get_inotify_dev(dev);