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Resolve an unsupported special case in arena_prof_tctx_set().

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Add arena_prof_tctx_reset() and use it instead of arena_prof_tctx_set()
when resetting the tctx pointer during reallocation, which happens
whenever an originally sampled reallocated object is not sampled during
reallocation.

This regression was introduced by
594c759f37 (Optimize
arena_prof_tctx_set().)
This commit is contained in:
Jason Evans 2015-09-14 23:48:11 -07:00
parent ea8d97b897
commit 708ed79834
6 changed files with 62 additions and 6 deletions
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7
src/huge.c
View file

@ -424,3 +424,10 @@ huge_prof_tctx_set(const void *ptr, prof_tctx_t *tctx)
extent_node_prof_tctx_set(node, tctx);
malloc_mutex_unlock(&arena->huge_mtx);
}
void
huge_prof_tctx_reset(const void *ptr)
{
huge_prof_tctx_set(ptr, (prof_tctx_t *)(uintptr_t)1U);
}

6
src/jemalloc.c
View file

@ -1718,7 +1718,7 @@ irealloc_prof(tsd_t *tsd, void *old_ptr, size_t old_usize, size_t usize)
prof_alloc_rollback(tsd, tctx, true);
return (NULL);
}
prof_realloc(tsd, p, usize, tctx, prof_active, true, old_usize,
prof_realloc(tsd, p, usize, tctx, prof_active, true, old_ptr, old_usize,
old_tctx);
return (p);
@ -2155,7 +2155,7 @@ irallocx_prof(tsd_t *tsd, void *old_ptr, size_t old_usize, size_t size,
*/
*usize = isalloc(p, config_prof);
}
prof_realloc(tsd, p, *usize, tctx, prof_active, true,
prof_realloc(tsd, p, *usize, tctx, prof_active, true, old_ptr,
old_usize, old_tctx);
return (p);
@ -2308,7 +2308,7 @@ ixallocx_prof(tsd_t *tsd, void *ptr, size_t old_usize, size_t size,
prof_alloc_rollback(tsd, tctx, false);
return (usize);
}
prof_realloc(tsd, ptr, usize, tctx, prof_active, false, old_usize,
prof_realloc(tsd, ptr, usize, tctx, prof_active, false, ptr, old_usize,
old_tctx);
return (usize);