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Make it possible to reenable LFC

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This commit is contained in:
Konstantin Knizhnik
2025-02-05 21:26:41 +02:00
parent 6699a30a49
commit 54df1c5411
1 changed files with 5 additions and 6 deletions
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11
pgxn/neon/file_cache.c
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@@ -220,10 +220,8 @@ lfc_maybe_disabled(void)
static bool
lfc_ensure_opened(void)
{
bool enabled = !lfc_maybe_disabled();
/* Open cache file if not done yet */
if (lfc_desc <= 0 && enabled)
if (lfc_desc <= 0)
{
lfc_desc = BasicOpenFile(lfc_path, O_RDWR);
@@ -233,7 +231,7 @@ lfc_ensure_opened(void)
return false;
}
}
return enabled;
return true;
}
static void
@@ -338,10 +336,11 @@ lfc_change_limit_hook(int newval, void *extra)
{
uint32 new_size = SIZE_MB_TO_CHUNKS(newval);
if (!is_normal_backend())
if (!lfc_ctl || !is_normal_backend())
return;
if (!lfc_ensure_opened())
/* Open LFC file only if LFC was enabled or we are going to reenable it */
if ((newval > 0 || LFC_ENABLED()) && !lfc_ensure_opened())
return;
LWLockAcquire(lfc_lock, LW_EXCLUSIVE);