Changeset 436a0a5 in mainline for kernel/arch/sparc64/src/proc/thread.c

Timestamp:

2018-11-09T22:04:01Z (5 years ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

95d45482

Parents:

88e43bc (diff), abf6c01 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

(merge) Reduce the number of blocking allocations in the kernel

File:

• kernel/arch/sparc64/src/proc/thread.c (modified) (2 diffs)

kernel/arch/sparc64/src/proc/thread.c

@@ -62 +62 @@
 }
 
-void thread_create_arch(thread_t *t)
+errno_t thread_create_arch(thread_t *t, thread_flags_t flags)
 {
-        if ((t->uspace) && (!t->arch.uspace_window_buffer)) {
+        if ((flags & THREAD_FLAG_USPACE) && (!t->arch.uspace_window_buffer)) {
                 /*
                  * The thread needs userspace window buffer and the object
                  * returned from the slab allocator doesn't have any.
                  */
-                t->arch.uspace_window_buffer = slab_alloc(uwb_cache, 0);
+                t->arch.uspace_window_buffer = slab_alloc(uwb_cache, FRAME_ATOMIC);
+                if (!t->arch.uspace_window_buffer)
+                        return ENOMEM;
         } else {
                 uintptr_t uw_buf = (uintptr_t) t->arch.uspace_window_buffer;
@@ -80 +82 @@
                     UWB_ALIGNMENT);
         }
+        return EOK;
 }