project-base/server-skynet-source-3rd-jemalloc
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix chunk purge hook calls for in-place huge shrinking reallocation.

Browse Source 
Fix chunk purge hook calls for in-place huge shrinking reallocation to
specify the old chunk size rather than the new chunk size.  This bug
caused no correctness issues for the default chunk purge function, but
was visible to custom functions set via the "arena.<i>.chunk_hooks"
mallctl.

This resolves #264.
This commit is contained in:
Mike Hommey 2015-08-27 20:30:15 -07:00 committed by Jason Evans
parent 30949da601
commit 6d8075f1e6
2 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
ChangeLog
View File

@ -16,6 +16,10 @@ brevity. Much more detail can be found in the git revision history:
- Add JEMALLOC_CXX_THROW to the memalign() function prototype, in order to
match glibc and avoid compilation errors when including both
jemalloc/jemalloc.h and malloc.h in C++ code.
- Fix chunk purge hook calls for in-place huge shrinking reallocation to
specify the old chunk size rather than the new chunk size. This bug caused
no correctness issues for the default chunk purge function, but was
visible to custom functions set via the "arena.<i>.chunk_hooks" mallctl.
* 4.0.0 (August 17, 2015)

4
src/huge.c
View File

@ -149,7 +149,7 @@ huge_ralloc_no_move_similar(void *ptr, size_t oldsize, size_t usize,
if (oldsize > usize) {
size_t sdiff = oldsize - usize;
zeroed = !chunk_purge_wrapper(arena, &chunk_hooks, ptr,
CHUNK_CEILING(usize), usize, sdiff);
CHUNK_CEILING(oldsize), usize, sdiff);
if (config_fill && unlikely(opt_junk_free)) {
memset((void *)((uintptr_t)ptr + usize), 0x5a, sdiff);
zeroed = false;
@ -204,7 +204,7 @@ huge_ralloc_no_move_shrink(void *ptr, size_t oldsize, size_t usize)
size_t sdiff = oldsize - usize;
zeroed = !chunk_purge_wrapper(arena, &chunk_hooks,
CHUNK_ADDR2BASE((uintptr_t)ptr + usize),
CHUNK_CEILING(usize), CHUNK_ADDR2OFFSET((uintptr_t)ptr +
CHUNK_CEILING(oldsize), CHUNK_ADDR2OFFSET((uintptr_t)ptr +
usize), sdiff);
if (config_fill && unlikely(opt_junk_free)) {
huge_dalloc_junk((void *)((uintptr_t)ptr + usize),