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kernel/vm: Actually initialize all members of the vm_page bitfield.

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If we do, the compiler should merge the stores and avoid loading
and masking, saving some instructions.
This commit is contained in:
Augustin Cavalier
2024-07-24 00:23:13 -04:00
parent 002264052d
commit 4f872a6f75
1 changed files with 15 additions and 10 deletions
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headers/private/kernel/vm/vm_types.h
+15 -10
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@@ -205,18 +205,23 @@ inline void
vm_page::Init(page_num_t pageNumber) vm_page::Init(page_num_t pageNumber)
{ {
physical_page_number = pageNumber; physical_page_number = pageNumber;
InitState(PAGE_STATE_FREE);
new(&mappings) vm_page_mappings(); new(&mappings) vm_page_mappings();
fWiredCount = 0;
usage_count = 0;
busy_writing = false;
SetCacheRef(NULL); SetCacheRef(NULL);
#if DEBUG_PAGE_QUEUE
queue = NULL; InitState(PAGE_STATE_FREE);
#endif busy = busy_writing = false;
#if DEBUG_PAGE_ACCESS accessed = modified = false;
accessing_thread = -1; _unused = 0;
#endif usage_count = 0;
fWiredCount = 0;
#if DEBUG_PAGE_QUEUE
queue = NULL;
#endif
#if DEBUG_PAGE_ACCESS
accessing_thread = -1;
#endif
} }