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mdbx: fix Valgrind support.

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Change-Id: I246bddb6536fa03e46d302dcdc6700007ffbe06c
This commit is contained in:
Leonid Yuriev 2019-10-15 09:13:45 +03:00
parent 2280ab0513
commit 5f8ecf0144
1 changed files with 9 additions and 5 deletions
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14
src/elements/core.c
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@ -2083,9 +2083,6 @@ static void __cold mdbx_kill_page(MDBX_env *env, MDBX_page *mp) {
if (ptr != &mp->mp_data)
(void)mdbx_pwrite(env->me_fd, ptr, len,
pgno2bytes(env, mp->mp_pgno) + PAGEHDRSZ);
VALGRIND_MAKE_MEM_NOACCESS(&mp->mp_data, len);
ASAN_POISON_MEMORY_REGION(&mp->mp_data, len);
}
static __inline MDBX_db *mdbx_outer_db(MDBX_cursor *mc) {
@ -2263,6 +2260,10 @@ static __must_check_result __hot int mdbx_loose_page(MDBX_txn *txn,
VALGRIND_MAKE_MEM_DEFINED(&mp->mp_pgno, sizeof(mp->mp_pgno));
if (unlikely(txn->mt_env->me_flags & MDBX_PAGEPERTURB))
mdbx_kill_page(txn->mt_env, mp);
VALGRIND_MAKE_MEM_NOACCESS(&mp->mp_data, txn->mt_env->me_psize - PAGEHDRSZ);
ASAN_POISON_MEMORY_REGION(&mp->mp_data, txn->mt_env->me_psize - PAGEHDRSZ);
mp->mp_flags = P_LOOSE | P_DIRTY;
if (likely(txn->mt_next_pgno != mp->mp_pgno + 1)) {
mp->mp_next = txn->tw.loose_pages;
@ -2985,9 +2986,12 @@ static int mdbx_page_alloc(MDBX_cursor *mc, unsigned num, MDBX_page **mp,
txn->tw.loose_pages = np->mp_next;
txn->tw.loose_count--;
mdbx_debug("db %d use loose page %" PRIaPGNO, DDBI(mc), np->mp_pgno);
ASAN_UNPOISON_MEMORY_REGION(np, env->me_psize);
mdbx_tassert(txn, np->mp_pgno < txn->mt_next_pgno);
mdbx_ensure(env, np->mp_pgno >= NUM_METAS);
VALGRIND_MAKE_MEM_UNDEFINED(&np->mp_data,
txn->mt_env->me_psize - PAGEHDRSZ);
ASAN_UNPOISON_MEMORY_REGION(&np->mp_data,
txn->mt_env->me_psize - PAGEHDRSZ);
*mp = np;
return MDBX_SUCCESS;
}
@ -3780,7 +3784,7 @@ static pgno_t mdbx_find_largest_this(MDBX_env *env, pgno_t largest) {
goto retry;
if (largest < snap_pages &&
lck->mti_oldest_reader <= /* ignore pending updates */ snap_txnid &&
snap_txnid <= env->me_txn0->mt_txnid)
snap_txnid < SAFE64_INVALID_THRESHOLD)
largest = snap_pages;
}
}