Commit a820fb08 authored by Alexander Viro's avatar Alexander Viro Committed by Linus Torvalds

[PATCH] paride cleanup and fixes (3/25)

Removed junk (see the analysis in the previous patch), removed
ps_set_intr() arguments.
parent 227aca07
......@@ -197,62 +197,24 @@ static void ps_tq_int( void *data);
static void (* ps_continuation)(void);
static int (* ps_ready)(void);
static unsigned long ps_timeout;
static int ps_tq_active = 0;
static int ps_nice = 0;
static spinlock_t ps_spinlock __attribute__((unused)) = SPIN_LOCK_UNLOCKED;
static DECLARE_WORK(ps_tq, ps_tq_int, NULL);
static void ps_set_intr(void (*continuation)(void),
int (*ready)(void),
int timeout, int nice)
static void ps_set_intr(void)
{
unsigned long flags;
spin_lock_irqsave(&ps_spinlock,flags);
ps_continuation = continuation;
ps_ready = ready;
ps_timeout = jiffies + timeout;
ps_nice = nice;
if (!ps_tq_active) {
ps_tq_active = 1;
if (!ps_nice)
if (!nice)
schedule_work(&ps_tq);
else
schedule_delayed_work(&ps_tq, ps_nice-1);
}
spin_unlock_irqrestore(&ps_spinlock,flags);
schedule_delayed_work(&ps_tq, nice-1);
}
static void ps_tq_int(void *data)
{
void (*con)(void);
unsigned long flags;
spin_lock_irqsave(&ps_spinlock,flags);
con = ps_continuation;
ps_tq_active = 0;
if (!con) {
spin_unlock_irqrestore(&ps_spinlock,flags);
return;
}
if (!ps_ready || ps_ready() || time_after_eq(jiffies, ps_timeout)) {
ps_continuation = NULL;
spin_unlock_irqrestore(&ps_spinlock,flags);
con();
ps_continuation();
return;
}
ps_tq_active = 1;
if (!ps_nice)
schedule_work(&ps_tq);
else
schedule_delayed_work(&ps_tq, ps_nice-1);
spin_unlock_irqrestore(&ps_spinlock,flags);
ps_set_intr();
}
#define PD_BITS 4
......@@ -858,13 +820,14 @@ static inline void next_request(int success)
static void do_pd_read(void)
{
ps_set_intr(do_pd_read_start, 0, 0, nice);
ps_continuation = do_pd_read_start;
ps_ready = 0;
ps_timeout = jiffies;
ps_set_intr();
}
static void do_pd_read_start(void)
{
pd_busy = 1;
pi_connect(pd_current->pi);
if (pd_wait_for(pd_current, STAT_READY, "do_pd_read") & STAT_ERR) {
pi_disconnect(pd_current->pi);
......@@ -877,7 +840,10 @@ static void do_pd_read_start(void)
return;
}
pd_ide_command(pd_current, IDE_READ, pd_block, pd_run);
ps_set_intr(do_pd_read_drq, pd_ready, PD_TMO, nice);
ps_continuation = do_pd_read_drq;
ps_ready = pd_ready;
ps_timeout = jiffies + PD_TMO;
ps_set_intr();
}
static void do_pd_read_drq(void)
......@@ -903,13 +869,14 @@ static void do_pd_read_drq(void)
static void do_pd_write(void)
{
ps_set_intr(do_pd_write_start, 0, 0, nice);
ps_continuation = do_pd_write_start;
ps_ready = 0;
ps_timeout = jiffies;
ps_set_intr();
}
static void do_pd_write_start(void)
{
pd_busy = 1;
pi_connect(pd_current->pi);
if (pd_wait_for(pd_current, STAT_READY, "do_pd_write") & STAT_ERR) {
pi_disconnect(pd_current->pi);
......@@ -937,7 +904,10 @@ static void do_pd_write_start(void)
if (pd_next_buf())
break;
}
ps_set_intr(do_pd_write_done, pd_ready, PD_TMO, nice);
ps_continuation = do_pd_write_done;
ps_ready = pd_ready;
ps_timeout = jiffies + PD_TMO;
ps_set_intr();
}
static void do_pd_write_done(void)
......
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