On 7.02.25 9:51, Pavel Tikhomirov wrote:
On 1/24/25 23:36, Alexander Atanasov wrote:
@@ -946,6 +953,8 @@ static int ploop_prepare_bat_update(struct ploop
*ploop, struct md_page *md,
map_index_t *to;
u8 level;
+ lockdep_assert_held(&ploop->bat_lock);
+
piwb = kmalloc(sizeof(*piwb), GFP_NOIO);
if (!piwb)
return -ENOMEM;
I don't see bat_lock in this call stack:
+-< ploop_prepare_bat_update
+-< ploop_prepare_reloc_index_wb
| +-< ploop_grow_update_header
| | +-< ploop_process_resize_cmd
I guess we need to fix locking in ploop_process_resize_cmd, by moving
ploop_grow_update_header under lock.
Resize and commands were done in a later pass, there are fixes in later
patches.
--
Regards,
Alexander Atanasov
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