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mdbx: don't hold dbi-lock during tree deletion inside mdbx_drop().

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Change-Id: I29824271ba09a4443196bc1207279a257a8e26c0
This commit is contained in:
Leonid Yuriev 2019-10-18 23:16:12 +03:00
parent b690415f44
commit 4e386be914
1 changed files with 9 additions and 9 deletions
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18
src/elements/core.c
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@ -14350,13 +14350,6 @@ int mdbx_drop(MDBX_txn *txn, MDBX_dbi dbi, int del) {
if (unlikely(rc != MDBX_SUCCESS))
return rc;
MDBX_env *env = txn->mt_env;
rc = mdbx_fastmutex_acquire(&env->me_dbi_lock);
if (unlikely(rc != MDBX_SUCCESS)) {
mdbx_cursor_close(mc);
return rc;
}
if (unlikely(!TXN_DBI_EXIST(txn, dbi, DB_USRVALID))) {
rc = MDBX_EINVAL;
goto bailout;
@ -14377,9 +14370,17 @@ int mdbx_drop(MDBX_txn *txn, MDBX_dbi dbi, int del) {
/* Can't delete the main DB */
if (del && dbi >= CORE_DBS) {
rc = mdbx_del0(txn, MAIN_DBI, &mc->mc_dbx->md_name, NULL, F_SUBDATA);
if (likely(!rc)) {
if (likely(rc == MDBX_SUCCESS)) {
txn->mt_dbflags[dbi] = DB_STALE;
MDBX_env *env = txn->mt_env;
rc = mdbx_fastmutex_acquire(&env->me_dbi_lock);
if (unlikely(rc != MDBX_SUCCESS)) {
txn->mt_flags |= MDBX_TXN_ERROR;
goto bailout;
}
mdbx_dbi_close_locked(env, dbi);
mdbx_ensure(env,
mdbx_fastmutex_release(&env->me_dbi_lock) == MDBX_SUCCESS);
} else {
txn->mt_flags |= MDBX_TXN_ERROR;
}
@ -14398,7 +14399,6 @@ int mdbx_drop(MDBX_txn *txn, MDBX_dbi dbi, int del) {
bailout:
mdbx_cursor_close(mc);
mdbx_ensure(env, mdbx_fastmutex_release(&env->me_dbi_lock) == MDBX_SUCCESS);
return rc;
}