}
}
-#ifdef CONFIG_SND_PCM_XRUN_DEBUG
-#define xrun_debug(substream, mask) ((substream)->pstr->xrun_debug & (mask))
-#else
-#define xrun_debug(substream, mask) 0
-#endif
-
-#define dump_stack_on_xrun(substream) do { \
- if (xrun_debug(substream, 2)) \
- dump_stack(); \
- } while (0)
-
static void pcm_debug_name(struct snd_pcm_substream *substream,
char *name, size_t len)
{
substream->number);
}
+#define XRUN_DEBUG_BASIC (1<<0)
+#define XRUN_DEBUG_STACK (1<<1) /* dump also stack */
+#define XRUN_DEBUG_JIFFIESCHECK (1<<2) /* do jiffies check */
+#define XRUN_DEBUG_PERIODUPDATE (1<<3) /* full period update info */
+#define XRUN_DEBUG_HWPTRUPDATE (1<<4) /* full hwptr update info */
+#define XRUN_DEBUG_LOG (1<<5) /* show last 10 positions on err */
+#define XRUN_DEBUG_LOGONCE (1<<6) /* do above only once */
+
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
+
+#define xrun_debug(substream, mask) \
+ ((substream)->pstr->xrun_debug & (mask))
+#else
+#define xrun_debug(substream, mask) 0
+#endif
+
+#define dump_stack_on_xrun(substream) do { \
+ if (xrun_debug(substream, XRUN_DEBUG_STACK)) \
+ dump_stack(); \
+ } while (0)
+
static void xrun(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE)
snd_pcm_gettime(runtime, (struct timespec *)&runtime->status->tstamp);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
- if (xrun_debug(substream, 1)) {
+ if (xrun_debug(substream, XRUN_DEBUG_BASIC)) {
char name[16];
pcm_debug_name(substream, name, sizeof(name));
snd_printd(KERN_DEBUG "XRUN: %s\n", name);
}
}
-static snd_pcm_uframes_t
-snd_pcm_update_hw_ptr_pos(struct snd_pcm_substream *substream,
- struct snd_pcm_runtime *runtime)
-{
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
+#define hw_ptr_error(substream, fmt, args...) \
+ do { \
+ if (xrun_debug(substream, XRUN_DEBUG_BASIC)) { \
+ xrun_log_show(substream); \
+ if (printk_ratelimit()) { \
+ snd_printd("PCM: " fmt, ##args); \
+ } \
+ dump_stack_on_xrun(substream); \
+ } \
+ } while (0)
+
+#define XRUN_LOG_CNT 10
+
+struct hwptr_log_entry {
+ unsigned long jiffies;
snd_pcm_uframes_t pos;
+ snd_pcm_uframes_t period_size;
+ snd_pcm_uframes_t buffer_size;
+ snd_pcm_uframes_t old_hw_ptr;
+ snd_pcm_uframes_t hw_ptr_base;
+};
- pos = substream->ops->pointer(substream);
- if (pos == SNDRV_PCM_POS_XRUN)
- return pos; /* XRUN */
- if (pos >= runtime->buffer_size) {
- if (printk_ratelimit()) {
- char name[16];
- pcm_debug_name(substream, name, sizeof(name));
- snd_printd(KERN_ERR "BUG: %s, pos = 0x%lx, "
- "buffer size = 0x%lx, period size = 0x%lx\n",
- name, pos, runtime->buffer_size,
- runtime->period_size);
- }
- pos = 0;
+struct snd_pcm_hwptr_log {
+ unsigned int idx;
+ unsigned int hit: 1;
+ struct hwptr_log_entry entries[XRUN_LOG_CNT];
+};
+
+static void xrun_log(struct snd_pcm_substream *substream,
+ snd_pcm_uframes_t pos)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_pcm_hwptr_log *log = runtime->hwptr_log;
+ struct hwptr_log_entry *entry;
+
+ if (log == NULL) {
+ log = kzalloc(sizeof(*log), GFP_ATOMIC);
+ if (log == NULL)
+ return;
+ runtime->hwptr_log = log;
+ } else {
+ if (xrun_debug(substream, XRUN_DEBUG_LOGONCE) && log->hit)
+ return;
}
- pos -= pos % runtime->min_align;
- return pos;
+ entry = &log->entries[log->idx];
+ entry->jiffies = jiffies;
+ entry->pos = pos;
+ entry->period_size = runtime->period_size;
+ entry->buffer_size = runtime->buffer_size;;
+ entry->old_hw_ptr = runtime->status->hw_ptr;
+ entry->hw_ptr_base = runtime->hw_ptr_base;
+ log->idx = (log->idx + 1) % XRUN_LOG_CNT;
+}
+
+static void xrun_log_show(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_hwptr_log *log = substream->runtime->hwptr_log;
+ struct hwptr_log_entry *entry;
+ char name[16];
+ unsigned int idx;
+ int cnt;
+
+ if (log == NULL)
+ return;
+ if (xrun_debug(substream, XRUN_DEBUG_LOGONCE) && log->hit)
+ return;
+ pcm_debug_name(substream, name, sizeof(name));
+ for (cnt = 0, idx = log->idx; cnt < XRUN_LOG_CNT; cnt++) {
+ entry = &log->entries[idx];
+ if (entry->period_size == 0)
+ break;
+ snd_printd("hwptr log: %s: j=%lu, pos=%ld/%ld/%ld, "
+ "hwptr=%ld/%ld\n",
+ name, entry->jiffies, (unsigned long)entry->pos,
+ (unsigned long)entry->period_size,
+ (unsigned long)entry->buffer_size,
+ (unsigned long)entry->old_hw_ptr,
+ (unsigned long)entry->hw_ptr_base);
+ idx++;
+ idx %= XRUN_LOG_CNT;
+ }
+ log->hit = 1;
}
-static int snd_pcm_update_hw_ptr_post(struct snd_pcm_substream *substream,
- struct snd_pcm_runtime *runtime)
+#else /* ! CONFIG_SND_PCM_XRUN_DEBUG */
+
+#define hw_ptr_error(substream, fmt, args...) do { } while (0)
+#define xrun_log(substream, pos) do { } while (0)
+#define xrun_log_show(substream) do { } while (0)
+
+#endif
+
+int snd_pcm_update_state(struct snd_pcm_substream *substream,
+ struct snd_pcm_runtime *runtime)
{
snd_pcm_uframes_t avail;
avail = snd_pcm_capture_avail(runtime);
if (avail > runtime->avail_max)
runtime->avail_max = avail;
- if (avail >= runtime->stop_threshold) {
- if (substream->runtime->status->state == SNDRV_PCM_STATE_DRAINING)
+ if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
+ if (avail >= runtime->buffer_size) {
snd_pcm_drain_done(substream);
- else
+ return -EPIPE;
+ }
+ } else {
+ if (avail >= runtime->stop_threshold) {
xrun(substream);
- return -EPIPE;
+ return -EPIPE;
+ }
}
if (avail >= runtime->control->avail_min)
- wake_up(&runtime->sleep);
+ wake_up(runtime->twake ? &runtime->tsleep : &runtime->sleep);
return 0;
}
-#define hw_ptr_error(substream, fmt, args...) \
- do { \
- if (xrun_debug(substream, 1)) { \
- if (printk_ratelimit()) { \
- snd_printd("PCM: " fmt, ##args); \
- } \
- dump_stack_on_xrun(substream); \
- } \
- } while (0)
-
-static int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *substream)
+static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
+ unsigned int in_interrupt)
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_uframes_t pos;
- snd_pcm_uframes_t old_hw_ptr, new_hw_ptr, hw_ptr_interrupt, hw_base;
+ snd_pcm_uframes_t old_hw_ptr, new_hw_ptr, hw_base;
snd_pcm_sframes_t hdelta, delta;
unsigned long jdelta;
old_hw_ptr = runtime->status->hw_ptr;
- pos = snd_pcm_update_hw_ptr_pos(substream, runtime);
+ pos = substream->ops->pointer(substream);
if (pos == SNDRV_PCM_POS_XRUN) {
xrun(substream);
return -EPIPE;
}
+ if (pos >= runtime->buffer_size) {
+ if (printk_ratelimit()) {
+ char name[16];
+ pcm_debug_name(substream, name, sizeof(name));
+ xrun_log_show(substream);
+ snd_printd(KERN_ERR "BUG: %s, pos = %ld, "
+ "buffer size = %ld, period size = %ld\n",
+ name, pos, runtime->buffer_size,
+ runtime->period_size);
+ }
+ pos = 0;
+ }
+ pos -= pos % runtime->min_align;
+ if (xrun_debug(substream, XRUN_DEBUG_LOG))
+ xrun_log(substream, pos);
hw_base = runtime->hw_ptr_base;
new_hw_ptr = hw_base + pos;
- hw_ptr_interrupt = runtime->hw_ptr_interrupt + runtime->period_size;
- delta = new_hw_ptr - hw_ptr_interrupt;
- if (hw_ptr_interrupt >= runtime->boundary) {
- hw_ptr_interrupt -= runtime->boundary;
- if (hw_base < runtime->boundary / 2)
- /* hw_base was already lapped; recalc delta */
- delta = new_hw_ptr - hw_ptr_interrupt;
- }
- if (delta < 0) {
- delta += runtime->buffer_size;
- if (delta < 0) {
- hw_ptr_error(substream,
- "Unexpected hw_pointer value "
- "(stream=%i, pos=%ld, intr_ptr=%ld)\n",
- substream->stream, (long)pos,
- (long)hw_ptr_interrupt);
- /* rebase to interrupt position */
- hw_base = new_hw_ptr = hw_ptr_interrupt;
- /* align hw_base to buffer_size */
- hw_base -= hw_base % runtime->buffer_size;
- delta = 0;
- } else {
+ if (in_interrupt) {
+ /* we know that one period was processed */
+ /* delta = "expected next hw_ptr" for in_interrupt != 0 */
+ delta = runtime->hw_ptr_interrupt + runtime->period_size;
+ if (delta > new_hw_ptr) {
hw_base += runtime->buffer_size;
if (hw_base >= runtime->boundary)
hw_base = 0;
new_hw_ptr = hw_base + pos;
+ goto __delta;
}
}
+ /* new_hw_ptr might be lower than old_hw_ptr in case when */
+ /* pointer crosses the end of the ring buffer */
+ if (new_hw_ptr < old_hw_ptr) {
+ hw_base += runtime->buffer_size;
+ if (hw_base >= runtime->boundary)
+ hw_base = 0;
+ new_hw_ptr = hw_base + pos;
+ }
+ __delta:
+ delta = new_hw_ptr - old_hw_ptr;
+ if (delta < 0)
+ delta += runtime->boundary;
+ if (xrun_debug(substream, in_interrupt ?
+ XRUN_DEBUG_PERIODUPDATE : XRUN_DEBUG_HWPTRUPDATE)) {
+ char name[16];
+ pcm_debug_name(substream, name, sizeof(name));
+ snd_printd("%s_update: %s: pos=%u/%u/%u, "
+ "hwptr=%ld/%ld/%ld/%ld\n",
+ in_interrupt ? "period" : "hwptr",
+ name,
+ (unsigned int)pos,
+ (unsigned int)runtime->period_size,
+ (unsigned int)runtime->buffer_size,
+ (unsigned long)delta,
+ (unsigned long)old_hw_ptr,
+ (unsigned long)new_hw_ptr,
+ (unsigned long)runtime->hw_ptr_base);
+ }
+ /* something must be really wrong */
+ if (delta >= runtime->buffer_size + runtime->period_size) {
+ hw_ptr_error(substream,
+ "Unexpected hw_pointer value %s"
+ "(stream=%i, pos=%ld, new_hw_ptr=%ld, "
+ "old_hw_ptr=%ld)\n",
+ in_interrupt ? "[Q] " : "[P]",
+ substream->stream, (long)pos,
+ (long)new_hw_ptr, (long)old_hw_ptr);
+ return 0;
+ }
/* Do jiffies check only in xrun_debug mode */
- if (!xrun_debug(substream, 4))
+ if (!xrun_debug(substream, XRUN_DEBUG_JIFFIESCHECK))
goto no_jiffies_check;
/* Skip the jiffies check for hardwares with BATCH flag.
*/
if (runtime->hw.info & SNDRV_PCM_INFO_BATCH)
goto no_jiffies_check;
- hdelta = new_hw_ptr - old_hw_ptr;
+ hdelta = delta;
if (hdelta < runtime->delay)
goto no_jiffies_check;
hdelta -= runtime->delay;
delta = jdelta /
(((runtime->period_size * HZ) / runtime->rate)
+ HZ/100);
+ /* move new_hw_ptr according jiffies not pos variable */
+ new_hw_ptr = old_hw_ptr;
+ hw_base = delta;
+ /* use loop to avoid checks for delta overflows */
+ /* the delta value is small or zero in most cases */
+ while (delta > 0) {
+ new_hw_ptr += runtime->period_size;
+ if (new_hw_ptr >= runtime->boundary)
+ new_hw_ptr -= runtime->boundary;
+ delta--;
+ }
+ /* align hw_base to buffer_size */
hw_ptr_error(substream,
- "hw_ptr skipping! [Q] "
+ "hw_ptr skipping! %s"
"(pos=%ld, delta=%ld, period=%ld, "
- "jdelta=%lu/%lu/%lu)\n",
+ "jdelta=%lu/%lu/%lu, hw_ptr=%ld/%ld)\n",
+ in_interrupt ? "[Q] " : "",
(long)pos, (long)hdelta,
(long)runtime->period_size, jdelta,
- ((hdelta * HZ) / runtime->rate), delta);
- hw_ptr_interrupt = runtime->hw_ptr_interrupt +
- runtime->period_size * delta;
- if (hw_ptr_interrupt >= runtime->boundary)
- hw_ptr_interrupt -= runtime->boundary;
- /* rebase to interrupt position */
- hw_base = new_hw_ptr = hw_ptr_interrupt;
- /* align hw_base to buffer_size */
- hw_base -= hw_base % runtime->buffer_size;
+ ((hdelta * HZ) / runtime->rate), hw_base,
+ (unsigned long)old_hw_ptr,
+ (unsigned long)new_hw_ptr);
+ /* reset values to proper state */
delta = 0;
+ hw_base = new_hw_ptr - (new_hw_ptr % runtime->buffer_size);
}
no_jiffies_check:
if (delta > runtime->period_size + runtime->period_size / 2) {
hw_ptr_error(substream,
- "Lost interrupts? "
- "(stream=%i, delta=%ld, intr_ptr=%ld)\n",
+ "Lost interrupts? %s"
+ "(stream=%i, delta=%ld, new_hw_ptr=%ld, "
+ "old_hw_ptr=%ld)\n",
+ in_interrupt ? "[Q] " : "",
substream->stream, (long)delta,
- (long)hw_ptr_interrupt);
- /* rebase hw_ptr_interrupt */
- hw_ptr_interrupt =
- new_hw_ptr - new_hw_ptr % runtime->period_size;
+ (long)new_hw_ptr,
+ (long)old_hw_ptr);
}
- runtime->hw_ptr_interrupt = hw_ptr_interrupt;
+
+ if (runtime->status->hw_ptr == new_hw_ptr)
+ return 0;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
runtime->silence_size > 0)
snd_pcm_playback_silence(substream, new_hw_ptr);
- if (runtime->status->hw_ptr == new_hw_ptr)
- return 0;
-
+ if (in_interrupt) {
+ delta = new_hw_ptr - runtime->hw_ptr_interrupt;
+ if (delta < 0)
+ delta += runtime->boundary;
+ delta -= (snd_pcm_uframes_t)delta % runtime->period_size;
+ runtime->hw_ptr_interrupt += delta;
+ if (runtime->hw_ptr_interrupt >= runtime->boundary)
+ runtime->hw_ptr_interrupt -= runtime->boundary;
+ }
runtime->hw_ptr_base = hw_base;
runtime->status->hw_ptr = new_hw_ptr;
runtime->hw_ptr_jiffies = jiffies;
if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE)
snd_pcm_gettime(runtime, (struct timespec *)&runtime->status->tstamp);
- return snd_pcm_update_hw_ptr_post(substream, runtime);
+ return snd_pcm_update_state(substream, runtime);
}
/* CAUTION: call it with irq disabled */
int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream)
{
- struct snd_pcm_runtime *runtime = substream->runtime;
- snd_pcm_uframes_t pos;
- snd_pcm_uframes_t old_hw_ptr, new_hw_ptr, hw_base;
- snd_pcm_sframes_t delta;
- unsigned long jdelta;
-
- old_hw_ptr = runtime->status->hw_ptr;
- pos = snd_pcm_update_hw_ptr_pos(substream, runtime);
- if (pos == SNDRV_PCM_POS_XRUN) {
- xrun(substream);
- return -EPIPE;
- }
- hw_base = runtime->hw_ptr_base;
- new_hw_ptr = hw_base + pos;
-
- delta = new_hw_ptr - old_hw_ptr;
- jdelta = jiffies - runtime->hw_ptr_jiffies;
- if (delta < 0) {
- delta += runtime->buffer_size;
- if (delta < 0) {
- hw_ptr_error(substream,
- "Unexpected hw_pointer value [2] "
- "(stream=%i, pos=%ld, old_ptr=%ld, jdelta=%li)\n",
- substream->stream, (long)pos,
- (long)old_hw_ptr, jdelta);
- return 0;
- }
- hw_base += runtime->buffer_size;
- if (hw_base >= runtime->boundary)
- hw_base = 0;
- new_hw_ptr = hw_base + pos;
- }
- /* Do jiffies check only in xrun_debug mode */
- if (!xrun_debug(substream, 4))
- goto no_jiffies_check;
- if (delta < runtime->delay)
- goto no_jiffies_check;
- delta -= runtime->delay;
- if (((delta * HZ) / runtime->rate) > jdelta + HZ/100) {
- hw_ptr_error(substream,
- "hw_ptr skipping! "
- "(pos=%ld, delta=%ld, period=%ld, jdelta=%lu/%lu)\n",
- (long)pos, (long)delta,
- (long)runtime->period_size, jdelta,
- ((delta * HZ) / runtime->rate));
- return 0;
- }
- no_jiffies_check:
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
- runtime->silence_size > 0)
- snd_pcm_playback_silence(substream, new_hw_ptr);
-
- if (runtime->status->hw_ptr == new_hw_ptr)
- return 0;
-
- runtime->hw_ptr_base = hw_base;
- runtime->status->hw_ptr = new_hw_ptr;
- runtime->hw_ptr_jiffies = jiffies;
- if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE)
- snd_pcm_gettime(runtime, (struct timespec *)&runtime->status->tstamp);
-
- return snd_pcm_update_hw_ptr_post(substream, runtime);
+ return snd_pcm_update_hw_ptr0(substream, 0);
}
/**
unsigned int rats_count, struct snd_ratnum *rats,
unsigned int *nump, unsigned int *denp)
{
- unsigned int best_num, best_diff, best_den;
+ unsigned int best_num, best_den;
+ int best_diff;
unsigned int k;
struct snd_interval t;
int err;
+ unsigned int result_num, result_den;
+ int result_diff;
best_num = best_den = best_diff = 0;
for (k = 0; k < rats_count; ++k) {
int diff;
if (q == 0)
q = 1;
- den = div_down(num, q);
+ den = div_up(num, q);
if (den < rats[k].den_min)
continue;
if (den > rats[k].den_max)
den -= r;
}
diff = num - q * den;
+ if (diff < 0)
+ diff = -diff;
if (best_num == 0 ||
diff * best_den < best_diff * den) {
best_diff = diff;
t.min = div_down(best_num, best_den);
t.openmin = !!(best_num % best_den);
+ result_num = best_num;
+ result_diff = best_diff;
+ result_den = best_den;
best_num = best_den = best_diff = 0;
for (k = 0; k < rats_count; ++k) {
unsigned int num = rats[k].num;
i->empty = 1;
return -EINVAL;
}
- den = div_up(num, q);
+ den = div_down(num, q);
if (den > rats[k].den_max)
continue;
if (den < rats[k].den_min)
den += rats[k].den_step - r;
}
diff = q * den - num;
+ if (diff < 0)
+ diff = -diff;
if (best_num == 0 ||
diff * best_den < best_diff * den) {
best_diff = diff;
return err;
if (snd_interval_single(i)) {
+ if (best_diff * result_den < result_diff * best_den) {
+ result_num = best_num;
+ result_den = best_den;
+ }
if (nump)
- *nump = best_num;
+ *nump = result_num;
if (denp)
- *denp = best_den;
+ *denp = result_den;
}
return err;
}
snd_pcm_stream_lock_irqsave(substream, flags);
if (!snd_pcm_running(substream) ||
- snd_pcm_update_hw_ptr_interrupt(substream) < 0)
+ snd_pcm_update_hw_ptr0(substream, 1) < 0)
goto _end;
if (substream->timer_running)
long tout;
init_waitqueue_entry(&wait, current);
- add_wait_queue(&runtime->sleep, &wait);
+ add_wait_queue(&runtime->tsleep, &wait);
for (;;) {
if (signal_pending(current)) {
err = -ERESTARTSYS;
break;
}
_endloop:
- remove_wait_queue(&runtime->sleep, &wait);
+ remove_wait_queue(&runtime->tsleep, &wait);
*availp = avail;
return err;
}
goto _end_unlock;
}
+ runtime->twake = 1;
while (size > 0) {
snd_pcm_uframes_t frames, appl_ptr, appl_ofs;
snd_pcm_uframes_t avail;
if (frames > cont)
frames = cont;
if (snd_BUG_ON(!frames)) {
+ runtime->twake = 0;
snd_pcm_stream_unlock_irq(substream);
return -EINVAL;
}
appl_ptr = runtime->control->appl_ptr;
appl_ofs = appl_ptr % runtime->buffer_size;
snd_pcm_stream_unlock_irq(substream);
- if ((err = transfer(substream, appl_ofs, data, offset, frames)) < 0)
- goto _end;
+ err = transfer(substream, appl_ofs, data, offset, frames);
snd_pcm_stream_lock_irq(substream);
+ if (err < 0)
+ goto _end_unlock;
switch (runtime->status->state) {
case SNDRV_PCM_STATE_XRUN:
err = -EPIPE;
}
}
_end_unlock:
+ runtime->twake = 0;
+ if (xfer > 0 && err >= 0)
+ snd_pcm_update_state(substream, runtime);
snd_pcm_stream_unlock_irq(substream);
- _end:
return xfer > 0 ? (snd_pcm_sframes_t)xfer : err;
}
goto _end_unlock;
}
+ runtime->twake = 1;
while (size > 0) {
snd_pcm_uframes_t frames, appl_ptr, appl_ofs;
snd_pcm_uframes_t avail;
if (frames > cont)
frames = cont;
if (snd_BUG_ON(!frames)) {
+ runtime->twake = 0;
snd_pcm_stream_unlock_irq(substream);
return -EINVAL;
}
appl_ptr = runtime->control->appl_ptr;
appl_ofs = appl_ptr % runtime->buffer_size;
snd_pcm_stream_unlock_irq(substream);
- if ((err = transfer(substream, appl_ofs, data, offset, frames)) < 0)
- goto _end;
+ err = transfer(substream, appl_ofs, data, offset, frames);
snd_pcm_stream_lock_irq(substream);
+ if (err < 0)
+ goto _end_unlock;
switch (runtime->status->state) {
case SNDRV_PCM_STATE_XRUN:
err = -EPIPE;
xfer += frames;
}
_end_unlock:
+ runtime->twake = 0;
+ if (xfer > 0 && err >= 0)
+ snd_pcm_update_state(substream, runtime);
snd_pcm_stream_unlock_irq(substream);
- _end:
return xfer > 0 ? (snd_pcm_sframes_t)xfer : err;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff