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Make dss non-optional, and fix an "arena.<i>.dss" mallctl bug.

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Make dss non-optional on all platforms which support sbrk(2).

Fix the "arena.<i>.dss" mallctl to return an error if "primary" or
"secondary" precedence is specified, but sbrk(2) is not supported.
This commit is contained in:
Jason Evans
2014-04-15 12:09:48 -07:00
parent 644d414bc9
commit 4d434adb14
13 changed files with 72 additions and 73 deletions
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6
src/huge.c
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@@ -140,7 +140,7 @@ huge_ralloc(void *ptr, size_t oldsize, size_t size, size_t extra,
* Use mremap(2) if this is a huge-->huge reallocation, and neither the
* source nor the destination are in dss.
*/
if (oldsize >= chunksize && (config_dss == false || (chunk_in_dss(ptr)
if (oldsize >= chunksize && (have_dss == false || (chunk_in_dss(ptr)
== false && chunk_in_dss(ret) == false))) {
size_t newsize = huge_salloc(ret);
@@ -198,12 +198,12 @@ static void
huge_dalloc_junk(void *ptr, size_t usize)
{
if (config_fill && config_dss && opt_junk) {
if (config_fill && have_dss && opt_junk) {
/*
* Only bother junk filling if the chunk isn't about to be
* unmapped.
*/
if (config_munmap == false || (config_dss && chunk_in_dss(ptr)))
if (config_munmap == false || (have_dss && chunk_in_dss(ptr)))
memset(ptr, 0x5a, usize);
}
}