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large page aligned ANONYMOUS mapping length fix

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Balazs Gerofi bgerofi@riken.jp
2012-11-03 18:32:00 +09:00
committed by Masamichi Takagi m-takagi@ab.jp.nec.com
parent 8979ccf5b8
commit 320b8e9851
1 changed files with 3 additions and 3 deletions
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6
kernel/process.c
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@@ -300,9 +300,9 @@ unsigned long extend_process_region(struct process *proc,
#ifdef USE_LARGE_PAGES #ifdef USE_LARGE_PAGES
if (aligned_new_end - aligned_end >= LARGE_PAGE_SIZE) { if (aligned_new_end - aligned_end >= LARGE_PAGE_SIZE) {
unsigned long p_aligned; unsigned long p_aligned;
unsigned long old_aligned_end = aligned_end;
if ((aligned_end & (LARGE_PAGE_SIZE - 1)) != 0) { if ((aligned_end & (LARGE_PAGE_SIZE - 1)) != 0) {
unsigned long old_aligned_end = aligned_end;
aligned_end = (aligned_end + (LARGE_PAGE_SIZE - 1)) & LARGE_PAGE_MASK; aligned_end = (aligned_end + (LARGE_PAGE_SIZE - 1)) & LARGE_PAGE_MASK;
/* Fill in the gap between old_aligned_end and aligned_end /* Fill in the gap between old_aligned_end and aligned_end
@@ -313,11 +313,11 @@ unsigned long extend_process_region(struct process *proc,
dkprintf("filled in gap for LARGE_PAGE_SIZE aligned start: 0x%lX -> 0x%lX\n", dkprintf("filled in gap for LARGE_PAGE_SIZE aligned start: 0x%lX -> 0x%lX\n",
old_aligned_end, aligned_end); old_aligned_end, aligned_end);
} }
/* Add large region for the actual mapping */ /* Add large region for the actual mapping */
aligned_new_end = (aligned_new_end + (LARGE_PAGE_SIZE - 1)) & LARGE_PAGE_MASK; aligned_new_end = (aligned_new_end + (aligned_end - old_aligned_end) +
(LARGE_PAGE_SIZE - 1)) & LARGE_PAGE_MASK;
address = aligned_new_end; address = aligned_new_end;
p = allocate_pages((aligned_new_end - aligned_end + LARGE_PAGE_SIZE) p = allocate_pages((aligned_new_end - aligned_end + LARGE_PAGE_SIZE)