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| author | Jason Evans <jasone@canonware.com> | 2016-12-03 23:38:25 (GMT) |
|---|---|---|
| committer | Jason Evans <jasone@canonware.com> | 2016-12-27 02:08:16 (GMT) |
| commit | a6e86810d83aba0d94d0f6423ed09e8e6e0909fa (patch) | |
| tree | 7ca1d2d92bdba5fd5ec01b01e3167f1f6dd875d9 /src/extent_dss.c | |
| parent | 884fa22b8c8a23831eb4090fa92d191d6e3e394e (diff) | |
| download | jemalloc-a6e86810d83aba0d94d0f6423ed09e8e6e0909fa.zip jemalloc-a6e86810d83aba0d94d0f6423ed09e8e6e0909fa.tar.gz jemalloc-a6e86810d83aba0d94d0f6423ed09e8e6e0909fa.tar.bz2 | |
Refactor purging and splitting/merging.
Split purging into lazy and forced variants. Use the forced variant for
zeroing dss.
Add support for NULL function pointers as an opt-out mechanism for the
dalloc, commit, decommit, purge_lazy, purge_forced, split, and merge
fields of extent_hooks_t.
Add short-circuiting checks in large_ralloc_no_move_{shrink,expand}() so
that no attempt is made if splitting/merging is not supported.
This resolves #268.
Diffstat (limited to 'src/extent_dss.c')
| -rw-r--r-- | src/extent_dss.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/extent_dss.c b/src/extent_dss.c index 1169d49..0f0c689 100644 --- a/src/extent_dss.c +++ b/src/extent_dss.c @@ -168,10 +168,20 @@ extent_alloc_dss(tsdn_t *tsdn, arena_t *arena, void *new_addr, size_t size, extent_dalloc_gap(tsdn, arena, gap); else extent_dalloc(tsdn, arena, gap); - if (*zero) - memset(ret, 0, size); if (!*commit) *commit = pages_decommit(ret, size); + if (*zero && *commit) { + extent_hooks_t *extent_hooks = + EXTENT_HOOKS_INITIALIZER; + extent_t extent; + + extent_init(&extent, arena, ret, size, + size, 0, true, false, true, false); + if (extent_purge_forced_wrapper(tsdn, + arena, &extent_hooks, &extent, 0, + size)) + memset(ret, 0, size); + } return (ret); } /* |