lib: fix lock initialization in region allocation benchmark

The Maple Tree benchmark uses MTREE_INIT() for a stack-allocated tree. 
Its static spinlock initializer leaves lockdep to use the lock address as
the class key.  Since the address is on the stack, the first allocation
triggers "INFO: trying to register non-static key" and disables lockdep.

The IDA benchmark has the same problem through IDA_INIT(), but runs after
Maple Tree and therefore encounters an already disabled lockdep.

Use mt_init_flags() and ida_init() to initialize the locks with persistent
lock-class keys.  Keep initialization outside the timed allocation paths.

Link: https://lore.kernel.org/20260911155244.1406122-1-ynorov@nvidia.com
Fixes: f4806cc63cc6 ("lib: test bitmap vs IDA vs Maple Tree performance for region allocations")
Signed-off-by: Yury Norov <ynorov@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Closes: https://lore.kernel.org/oe-lkp/202609101106.771b567e-lkp@intel.com
Acked-by: Liam R. Howlett (Oracle) <liam@infradead.org>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Andrew Ballance <andrewjballance@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>

0 files changed, 0 insertions, 0 deletions