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activation: separate prioritized counter

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While prioritized_section() based on raised priority works
nicely for standard lvm comman - separate counter is actually needed
when it's used in daemons like clvmd/dmeventd  where priority
stays raised all the time.
This commit is contained in:
Zdenek Kabelac 2018-03-15 12:30:45 +01:00
parent f6f8f0c7fd
commit 9553dc7761
1 changed files with 7 additions and 1 deletions
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8
lib/mm/memlock.c
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@ -87,6 +87,7 @@ static void *_malloc_mem = NULL;
static int _mem_locked = 0; static int _mem_locked = 0;
static int _priority_raised = 0; static int _priority_raised = 0;
static int _critical_section = 0; static int _critical_section = 0;
static int _prioritized_section = 0;
static int _memlock_count_daemon = 0; static int _memlock_count_daemon = 0;
static int _priority; static int _priority;
static int _default_priority; static int _default_priority;
@ -618,6 +619,7 @@ void critical_section_inc(struct cmd_context *cmd, const char *reason)
log_debug_activation("Entering prioritized section (%s).", reason); log_debug_activation("Entering prioritized section (%s).", reason);
_raise_priority(cmd); _raise_priority(cmd);
_prioritized_section++;
} }
void critical_section_dec(struct cmd_context *cmd, const char *reason) void critical_section_dec(struct cmd_context *cmd, const char *reason)
@ -627,6 +629,9 @@ void critical_section_dec(struct cmd_context *cmd, const char *reason)
log_debug_activation("Leaving critical section (%s).", reason); log_debug_activation("Leaving critical section (%s).", reason);
} else } else
log_debug_activation("Leaving section (%s).", reason); log_debug_activation("Leaving section (%s).", reason);
if (_prioritized_section > 0)
_prioritized_section--;
} }
int critical_section(void) int critical_section(void)
@ -636,7 +641,7 @@ int critical_section(void)
int prioritized_section(void) int prioritized_section(void)
{ {
return _priority_raised; return _prioritized_section;
} }
/* /*
@ -680,6 +685,7 @@ void memlock_reset(void)
_mem_locked = 0; _mem_locked = 0;
_priority_raised = 0; _priority_raised = 0;
_critical_section = 0; _critical_section = 0;
_prioritized_section = 0;
_memlock_count_daemon = 0; _memlock_count_daemon = 0;
} }