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Log decay->nunpurged before purging.

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During purging, we may unlock decay->mtx.  Therefore we should finish logging
decay related counters before attempt to purge.
This commit is contained in:
Qi Wang 2017-06-14 18:44:13 -07:00 committed by Jason Evans
parent a4d6fe73cf
commit 84f6c2cae0
1 changed files with 3 additions and 2 deletions
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5
src/arena.c
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@ -725,12 +725,13 @@ arena_decay_epoch_advance(tsdn_t *tsdn, arena_t *arena, arena_decay_t *decay,
arena_decay_epoch_advance_helper(decay, time, current_npages); arena_decay_epoch_advance_helper(decay, time, current_npages);
size_t npages_limit = arena_decay_backlog_npages_limit(decay); size_t npages_limit = arena_decay_backlog_npages_limit(decay);
/* We may unlock decay->mtx when try_purge(). Finish logging first. */
decay->nunpurged = (npages_limit > current_npages) ? npages_limit :
current_npages;
if (purge) { if (purge) {
arena_decay_try_purge(tsdn, arena, decay, extents, arena_decay_try_purge(tsdn, arena, decay, extents,
current_npages, npages_limit); current_npages, npages_limit);
} }
decay->nunpurged = (npages_limit > current_npages) ? npages_limit :
current_npages;
} }
static void static void