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Fix a memory corruption bug in chunk_alloc_dss().

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Fix a memory corruption bug in chunk_alloc_dss() that was due to
claiming newly allocated memory is zeroed.

Reverse order of preference between mmap() and sbrk() to prefer mmap().

Clean up management of 'zero' parameter in chunk_alloc*().
This commit is contained in:
Jason Evans 2012-04-21 13:33:48 -07:00
parent 606f1fdc3c
commit 8f0e0eb1c0
6 changed files with 20 additions and 15 deletions
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src/chunk_dss.c
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@ -89,7 +89,6 @@ chunk_alloc_dss(size_t size, size_t alignment, bool *zero)
malloc_mutex_unlock(&dss_mtx);
if (cpad_size != 0)
chunk_dealloc(cpad, cpad_size, true);
*zero = true;
return (ret);
}
} while (dss_prev != (void *)-1);