From 2e6affc24baca5540d6c7f6406519663c15ae985 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Wed, 13 Dec 2023 14:36:09 -0500 Subject: kernel: vm: Ensure calls are serialized Signed-off-by: Ian Moffett --- sys/vm/vm_dynalloc.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'sys/vm') diff --git a/sys/vm/vm_dynalloc.c b/sys/vm/vm_dynalloc.c index e7acd19..a656a00 100644 --- a/sys/vm/vm_dynalloc.c +++ b/sys/vm/vm_dynalloc.c @@ -40,8 +40,12 @@ dynalloc(size_t sz) { /* TODO: Per CPU */ struct vm_ctx vm_ctx = vm_get_bsp_ctx(); + void *tmp; - return tlsf_malloc(vm_ctx.tlsf_ctx, sz); + spinlock_acquire(&vm_ctx.dynalloc_lock); + tmp = tlsf_malloc(vm_ctx.tlsf_ctx, sz); + spinlock_release(&vm_ctx.dynalloc_lock); + return tmp; } /* @@ -55,8 +59,12 @@ dynrealloc(void *old_ptr, size_t newsize) { /* TODO: Per CPU */ struct vm_ctx vm_ctx = vm_get_bsp_ctx(); + void *tmp; - return tlsf_realloc(vm_ctx.tlsf_ctx, old_ptr, newsize); + spinlock_acquire(&vm_ctx.dynalloc_lock); + tmp = tlsf_realloc(vm_ctx.tlsf_ctx, old_ptr, newsize); + spinlock_release(&vm_ctx.dynalloc_lock); + return tmp; } /* @@ -70,5 +78,7 @@ dynfree(void *ptr) /* TODO: Per CPU */ struct vm_ctx vm_ctx = vm_get_bsp_ctx(); + spinlock_acquire(&vm_ctx.dynalloc_lock); tlsf_free(vm_ctx.tlsf_ctx, ptr); + spinlock_release(&vm_ctx.dynalloc_lock); } -- cgit v1.2.3