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Use macros in PFA

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This commit is contained in:
Alex Kotov 2021-12-14 23:54:47 +05:00
parent fa3f8e1aa0
commit 94e58914fd
Signed by: kotovalexarian
GPG key ID: 553C0EBBEB5D5F08
1 changed files with 9 additions and 5 deletions
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14
src/pfa.c
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@ -15,6 +15,13 @@
#define FLAG_MASK_FROM_ADDR(page_addr) \
(FLAG_MASK_FROM_INDEX(PAGE_INDEX(page_addr)))
#define GET_FLAG_FROM_INDEX(pfa, page_index) \
(!!((pfa)->flags[FLAG_INDEX_FROM_INDEX(page_index)] & \
FLAG_MASK_FROM_INDEX(page_index)))
#define GET_FLAG_FROM_ADDR(pfa, page_addr) \
(!!((pfa)->flags[FLAG_INDEX_FROM_ADDR(page_addr)] & \
FLAG_MASK_FROM_ADDR(page_addr)))
static void KernAux_PFA_mark(
KernAux_PFA pfa,
bool status,
@ -32,8 +39,7 @@ bool KernAux_PFA_is_available(const KernAux_PFA pfa, const size_t page_addr)
{
if (page_addr % KERNAUX_PFA_PAGE_SIZE != 0) return false;
return pfa->flags[FLAG_INDEX_FROM_ADDR(page_addr)] &
FLAG_MASK_FROM_ADDR(page_addr);
return GET_FLAG_FROM_ADDR(pfa, page_addr);
}
void KernAux_PFA_mark_available(
@ -101,9 +107,7 @@ size_t KernAux_PFA_alloc_pages(const KernAux_PFA pfa, size_t mem_size)
index < KERNAUX_PFA_PAGES_COUNT_MAX;
++index)
{
if (!(pfa->flags[FLAG_INDEX_FROM_INDEX(index)] &
FLAG_MASK_FROM_INDEX(index)))
{
if (!GET_FLAG_FROM_INDEX(pfa, index)) {
start = 0;
continue;
}