Revision a59db67656021fa212e9b95a583f13c34eb67cd9 authored by Joe Thornber on 23 January 2015, 10:16:16 UTC, committed by Mike Snitzer on 23 January 2015, 16:06:08 UTC
Introduce a new variable to count the number of allocated migration
structures. The existing variable cache->nr_migrations became
overloaded. It was used to:
i) track of the number of migrations in flight for the purposes of
quiescing during suspend.
ii) to estimate the amount of background IO occuring.
Recent discard changes meant that REQ_DISCARD bios are processed with
a migration. Discards are not background IO so nr_migrations was not
incremented. However this could cause quiescing to complete early.
(i) is now handled with a new variable cache->nr_allocated_migrations.
cache->nr_migrations has been renamed cache->nr_io_migrations.
cleanup_migration() is now called free_io_migration(), since it
decrements that variable.
Also, remove the unused cache->next_migration variable that got replaced
with with prealloc_structs a while ago.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
1 parent 9b1cc9f
max98095.h
/*
* Platform data for MAX98095
*
* Copyright 2011 Maxim Integrated Products
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#ifndef __SOUND_MAX98095_PDATA_H__
#define __SOUND_MAX98095_PDATA_H__
/* Equalizer filter response configuration */
struct max98095_eq_cfg {
const char *name;
unsigned int rate;
u16 band1[5];
u16 band2[5];
u16 band3[5];
u16 band4[5];
u16 band5[5];
};
/* Biquad filter response configuration */
struct max98095_biquad_cfg {
const char *name;
unsigned int rate;
u16 band1[5];
u16 band2[5];
};
/* codec platform data */
struct max98095_pdata {
/* Equalizers for DAI1 and DAI2 */
struct max98095_eq_cfg *eq_cfg;
unsigned int eq_cfgcnt;
/* Biquad filter for DAI1 and DAI2 */
struct max98095_biquad_cfg *bq_cfg;
unsigned int bq_cfgcnt;
/* Analog/digital microphone configuration:
* 0 = analog microphone input (normal setting)
* 1 = digital microphone input
*/
unsigned int digmic_left_mode:1;
unsigned int digmic_right_mode:1;
/* Pin5 is the mechanical method of sensing jack insertion
* but it is something that might not be supported.
* 0 = PIN5 not supported
* 1 = PIN5 supported
*/
unsigned int jack_detect_pin5en:1;
/* Slew amount for jack detection. Calculated as 4 * (delay + 1).
* Default delay is 24 to get a time of 100ms.
*/
unsigned int jack_detect_delay;
};
#endif
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