Christoph Lameter wrote:
The patch restores what commit 4a0962abd187df29b7d1378b2f372a55667d54c0 already implemented. The feature was subsequently clobbered by commit da3bbdd4632c0171406b2677e31494afa5bde2f8 Before this patch some execution path use list_del() instead of list_del_init() which results in inconsitencies in the state of d_lru when the object is freed. The performance of list_del_init() and list_del() is the same. So lets just have one dentry removal function named dentry_lru_del() that always does a list_del_init(). The result of this patch is that dentry->d_lru is now always empty when a dentry is freed. The dentry defragmentation patch depends on a defined state of a dentry on free. Signed-off-by: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
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