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Tiny optimization by skipping a no-op iteration.

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We initialize the physicalPagesEnd from physical_memory_range[0] so
re-evaluating that range is a no-op.
This commit is contained in:
Michael Lotz 2011-11-16 10:56:16 +01:00
parent 3dbd9c1148
commit 4200073542
1 changed files with 1 additions and 1 deletions
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2
src/system/kernel/vm/vm_page.cpp
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@ -3230,7 +3230,7 @@ vm_page_init_num_pages(kernel_args *args)
sNonExistingPages = 0;
sIgnoredPages = args->ignored_physical_memory / B_PAGE_SIZE;
for (uint32 i = 0; i < args->num_physical_memory_ranges; i++) {
for (uint32 i = 1; i < args->num_physical_memory_ranges; i++) {
page_num_t start = args->physical_memory_range[i].start / B_PAGE_SIZE;
if (start > physicalPagesEnd)
sNonExistingPages += start - physicalPagesEnd;