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Spinlock save cpu flags

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This commit is contained in:
Kamil Kowalczyk
2026-03-12 22:48:34 +01:00
parent 19793e9126
commit 4760818118
50 changed files with 704 additions and 461 deletions
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34
kernel/proc/resource.c
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@@ -16,17 +16,21 @@
#include <sys/debug.h>
struct proc_resource* proc_find_resource (struct procgroup* procgroup, int rid) {
uint64_t fr;
struct proc_resource* resource = NULL;
spin_lock (&procgroup->lock);
spin_lock (&procgroup->lock, &fr);
rbtree_find (struct proc_resource, &procgroup->resource_tree, rid, resource, resource_tree_link,
rid);
spin_unlock (&procgroup->lock);
spin_unlock (&procgroup->lock, fr);
return resource;
}
struct proc_resource* proc_create_resource_mutex (struct procgroup* procgroup) {
uint64_t fpg;
struct proc_resource* resource;
resource = malloc (sizeof (*resource));
@@ -35,13 +39,13 @@ struct proc_resource* proc_create_resource_mutex (struct procgroup* procgroup) {
memset (resource, 0, sizeof (*resource));
spin_lock (&procgroup->lock);
spin_lock (&procgroup->lock, &fpg);
resource->rid = id_alloc (&procgroup->rid_alloc);
if (resource->rid < 0) {
free (resource);
spin_unlock (&procgroup->lock);
spin_unlock (&procgroup->lock, fpg);
return NULL;
}
@@ -53,12 +57,14 @@ struct proc_resource* proc_create_resource_mutex (struct procgroup* procgroup) {
rbtree_insert (struct proc_resource, &procgroup->resource_tree, &resource->resource_tree_link,
resource_tree_link, rid);
spin_unlock (&procgroup->lock);
spin_unlock (&procgroup->lock, fpg);
return resource;
}
struct proc_resource* proc_create_resource_mail (struct procgroup* procgroup) {
uint64_t fpg;
struct proc_resource* resource;
resource = malloc (sizeof (*resource));
@@ -67,13 +73,13 @@ struct proc_resource* proc_create_resource_mail (struct procgroup* procgroup) {
memset (resource, 0, sizeof (*resource));
spin_lock (&procgroup->lock);
spin_lock (&procgroup->lock, &fpg);
resource->rid = id_alloc (&procgroup->rid_alloc);
if (resource->rid < 0) {
free (resource);
spin_unlock (&procgroup->lock);
spin_unlock (&procgroup->lock, fpg);
return NULL;
}
@@ -85,28 +91,30 @@ struct proc_resource* proc_create_resource_mail (struct procgroup* procgroup) {
if (!ringbuffer_init (&resource->u.mail.ringbuffer, PROC_MAIL_MAX, sizeof (struct mail_packet))) {
id_free (&procgroup->rid_alloc, resource->rid);
free (resource);
spin_unlock (&procgroup->lock);
spin_unlock (&procgroup->lock, fpg);
return NULL;
}
rbtree_insert (struct proc_resource, &procgroup->resource_tree, &resource->resource_tree_link,
resource_tree_link, rid);
spin_unlock (&procgroup->lock);
spin_unlock (&procgroup->lock, fpg);
return resource;
}
void proc_delete_resource (struct procgroup* procgroup, struct proc_resource* resource,
struct reschedule_ctx* rctx) {
spin_lock (&procgroup->lock);
spin_lock (&resource->lock);
uint64_t fr, fpg;
spin_lock (&procgroup->lock, &fpg);
spin_lock (&resource->lock, &fr);
id_free (&procgroup->rid_alloc, resource->rid);
rbtree_delete (&procgroup->resource_tree, &resource->resource_tree_link);
spin_unlock (&resource->lock);
spin_unlock (&procgroup->lock);
spin_unlock (&resource->lock, fr);
spin_unlock (&procgroup->lock, fpg);
resource->ops.cleanup (resource, rctx);
free (resource);