UBIFS uses kmem_cache_alloc() to allocate an ubifs_inode. The memory returned from kmem_cache_alloc() is not zeroed. ubifs_alloc_inode() zeroes all fields in the ubifs_inode except the embedded struct inode. In Linux this is done in the kmem_cache constructor function which calls inode_init_once(). In barebox we have the constructor function as well, but we don't have an equivalent of inode_init_once(), so the constructor is empty. zero the inode in the constructor instead so that barebox gets a zeroed inode.
Signed-off-by: Sascha Hauer <[email protected]> --- fs/ubifs/super.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 45037b42ea..4022270d4c 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -1128,6 +1128,7 @@ static void kill_ubifs_super(struct super_block *s) */ static void inode_slab_ctor(void *obj) { + memset(obj, 0, sizeof(struct inode)); } static int __init ubifs_init(void) -- 2.47.3
