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Matheus
2024-05-25 20:35:19 -03:00
parent 3e1d79d5a5
commit 3bcc3e5585
3 changed files with 4 additions and 3 deletions
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kernel-src/arch/x86-64/context.asm
+1 -1
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@@ -4,7 +4,7 @@ arch_context_switch:
xor rsi, rsi ; is syscall? (no) xor rsi, rsi ; is syscall? (no)
extern sched_userspacecheck extern sched_userspacecheck
call sched_userspacecheck ; compiled with no_caller_saved_registers call sched_userspacecheck ; compiled with no_caller_saved_registers
cli
; rdi is the pointer to the context struct ; rdi is the pointer to the context struct
mov rsp, rdi mov rsp, rdi
kernel-src/arch/x86-64/syscall.asm
+1
View File
@@ -240,6 +240,7 @@ arch_syscall_entry:
mov rcx, rax ; return value mov rcx, rax ; return value
extern sched_userspacecheck ; context, return, errno extern sched_userspacecheck ; context, return, errno
call sched_userspacecheck ; compiled with __attribute__((no_caller_saved_registers)) call sched_userspacecheck ; compiled with __attribute__((no_caller_saved_registers))
cli
; restore context ; restore context
add rsp, 32 ; r9 argument, cr2, gs, and fs are not popped. add rsp, 32 ; r9 argument, cr2, gs, and fs are not popped.
kernel-src/mm/vmmcache.c
+2 -2
View File
@@ -262,7 +262,7 @@ int vmmcache_syncvnode(vnode_t *vnode, uintmax_t offset, size_t size) {
page_t *page = vnode->pages; page_t *page = vnode->pages;
page_t *vnodedirtylist = NULL; page_t *vnodedirtylist = NULL;
for (; page; page = page->vnodenext) { for (; page; page = page->vnodenext) {
if (page->offset < offset || page->offset >= top) if (page->offset < offset || page->offset >= top || (page->offset & PAGE_FLAGS_DIRTY) == 0)
continue; continue;
// remove from write list and add to an internal list using the write pointers // remove from write list and add to an internal list using the write pointers
@@ -391,7 +391,7 @@ void vmmcache_init() {
memset(table, 0, TABLE_SIZE * sizeof(page_t *)); memset(table, 0, TABLE_SIZE * sizeof(page_t *));
SEMAPHORE_INIT(&sync, 0); SEMAPHORE_INIT(&sync, 0);
writerthread = sched_newthread(writer, PAGE_SIZE * 4, 1, NULL, NULL); writerthread = sched_newthread(writer, PAGE_SIZE * 16, 1, NULL, NULL);
__assert(writerthread); __assert(writerthread);
sched_queue(writerthread); sched_queue(writerthread);
vmmcache_sync(); vmmcache_sync();