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Revert "debugobject: Ensure pool refill (again)"

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This reverts commit 503e554782c916aec553f790298564a530cf1778 which is
commit 0af462f19e upstream.

Guenter reports problems with it, and it's not quite obvious why, so
revert it for now.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/d35b1ff1-e198-481c-b1be-9e22445efe06@roeck-us.net
Cc: Ido Schimmel <idosch@nvidia.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2023-06-12 10:56:09 +02:00 • committed by Justin Hammond
parent 5ea51c71b2
commit cc4a47ba77
1 changed files with 6 additions and 15 deletions
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21
lib/debugobjects.c
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@ -590,16 +590,6 @@ static struct debug_obj *lookup_object_or_alloc(void *addr, struct debug_bucket
return NULL;
}
static void debug_objects_fill_pool(void)
{
/*
* On RT enabled kernels the pool refill must happen in preemptible
* context:
*/
if (!IS_ENABLED(CONFIG_PREEMPT_RT) || preemptible())
fill_pool();
}
static void
__debug_object_init(void *addr, const struct debug_obj_descr *descr, int onstack)
{
@ -608,7 +598,12 @@ __debug_object_init(void *addr, const struct debug_obj_descr *descr, int onstack
struct debug_obj *obj;
unsigned long flags;
debug_objects_fill_pool();
/*
* On RT enabled kernels the pool refill must happen in preemptible
* context:
*/
if (!IS_ENABLED(CONFIG_PREEMPT_RT) || preemptible())
fill_pool();
db = get_bucket((unsigned long) addr);
@ -693,8 +688,6 @@ int debug_object_activate(void *addr, const struct debug_obj_descr *descr)
if (!debug_objects_enabled)
return 0;
debug_objects_fill_pool();
db = get_bucket((unsigned long) addr);
raw_spin_lock_irqsave(&db->lock, flags);
@ -904,8 +897,6 @@ void debug_object_assert_init(void *addr, const struct debug_obj_descr *descr)
if (!debug_objects_enabled)
return;
debug_objects_fill_pool();
db = get_bucket((unsigned long) addr);
raw_spin_lock_irqsave(&db->lock, flags);