spinlock: add cpu_spin_lock_xsave()/xrestore() functions

These are functions like spin_lock_irqsave() functions in linux kernel.
They should replace xxx_lock() functions in different modules.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

1 files changed, 2 insertions, 8 deletions

diff --git a/lib/libutils/isoc/bget_malloc.c b/lib/libutils/isoc/bget_malloc.c
index a4f77595..552fdaf5 100644
--- a/lib/libutils/isoc/bget_malloc.c
+++ b/lib/libutils/isoc/bget_malloc.c
@@ -115,18 +115,12 @@
 
 static uint32_t malloc_lock(void)
 {
-	uint32_t exceptions;
-
-	exceptions = thread_mask_exceptions(
-			THREAD_EXCP_NATIVE_INTR | THREAD_EXCP_FOREIGN_INTR);
-	cpu_spin_lock(&__malloc_spinlock);
-	return exceptions;
+	return cpu_spin_lock_xsave(&__malloc_spinlock);
 }
 
 static void malloc_unlock(uint32_t exceptions)
 {
-	cpu_spin_unlock(&__malloc_spinlock);
-	thread_unmask_exceptions(exceptions);
+	cpu_spin_unlock_xrestore(&__malloc_spinlock, exceptions);
 }
 
 static void tag_asan_free(void *buf, size_t len)