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Diffstat (limited to 'fs/btrfs/ioctl.c')
-rw-r--r--fs/btrfs/ioctl.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 02d224e8c83f..be2d4f6aaa5e 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2208,7 +2208,7 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
int num_types = 4;
int alloc_size;
int ret = 0;
- int slot_count = 0;
+ u64 slot_count = 0;
int i, c;
if (copy_from_user(&space_args,
@@ -2247,7 +2247,7 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
goto out;
}
- slot_count = min_t(int, space_args.space_slots, slot_count);
+ slot_count = min_t(u64, space_args.space_slots, slot_count);
alloc_size = sizeof(*dest) * slot_count;
@@ -2267,6 +2267,9 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
for (i = 0; i < num_types; i++) {
struct btrfs_space_info *tmp;
+ if (!slot_count)
+ break;
+
info = NULL;
rcu_read_lock();
list_for_each_entry_rcu(tmp, &root->fs_info->space_info,
@@ -2288,7 +2291,10 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
memcpy(dest, &space, sizeof(space));
dest++;
space_args.total_spaces++;
+ slot_count--;
}
+ if (!slot_count)
+ break;
}
up_read(&info->groups_sem);
}