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unwind: Simplify unwind_reset_info() 

Invert the condition of the first if and make it an early exit to
reduce an indent level for the rest fo the function.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://patch.msgid.link/20250924080118.777916262@infradead.org
This commit is contained in:
Peter Zijlstra 2025-09-22 15:46:00 +02:00
parent b1164c7d11
commit 52a1ec718b
1 changed files with 13 additions and 13 deletions
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26
include/linux/unwind_deferred.h
View File

@ -46,22 +46,22 @@ void unwind_deferred_task_exit(struct task_struct *task);
static __always_inline void unwind_reset_info(void) static __always_inline void unwind_reset_info(void)
{ {
struct unwind_task_info *info = &current->unwind_info; struct unwind_task_info *info = &current->unwind_info;
unsigned long bits; unsigned long bits = info->unwind_mask;
/* Was there any unwinding? */ /* Was there any unwinding? */
if (unlikely(info->unwind_mask)) { if (likely(!bits))
bits = info->unwind_mask; return;
do {
/* Is a task_work going to run again before going back */
if (bits & UNWIND_PENDING)
return;
} while (!try_cmpxchg(&info->unwind_mask, &bits, 0UL));
current->unwind_info.id.id = 0;
if (unlikely(info->cache)) { do {
info->cache->nr_entries = 0; /* Is a task_work going to run again before going back */
info->cache->unwind_completed = 0; if (bits & UNWIND_PENDING)
} return;
} while (!try_cmpxchg(&info->unwind_mask, &bits, 0UL));
current->unwind_info.id.id = 0;
if (unlikely(info->cache)) {
info->cache->nr_entries = 0;
info->cache->unwind_completed = 0;
} }
} }