Revision b237e3044450fcabc6d63d8578b2fbc8237caba3 authored by Harshad Shirwadkar on 01 April 2021, 17:21:24 UTC, committed by Theodore Ts'o on 09 April 2021, 15:34:58 UTC
Before this patch, the function parse_options() was returning journal_devnum and journal_ioprio variables to the caller. This patch generalizes that interface to allow parse_options to return any parsed options to return back to the caller. In this patch series, it gets used to capture the value of "mb_optimize_scan=%u" mount option. Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com> Reviewed-by: Ritesh Harjani <ritesh.list@gmail.com> Link: https://lore.kernel.org/r/20210401172129.189766-3-harshadshirwadkar@gmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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nwbutton.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NWBUTTON_H
#define __NWBUTTON_H
/*
* NetWinder Button Driver-
* Copyright (C) Alex Holden <alex@linuxhacker.org> 1998, 1999.
*/
#ifdef __NWBUTTON_C /* Actually compiling the driver itself */
/* Various defines: */
#define NUM_PRESSES_REBOOT 2 /* How many presses to activate shutdown */
#define BUTTON_DELAY 30 /* How many jiffies for sequence to end */
#define VERSION "0.3" /* Driver version number */
/* Structure definitions: */
struct button_callback {
void (*callback) (void);
int count;
};
/* Function prototypes: */
static void button_sequence_finished(struct timer_list *unused);
static irqreturn_t button_handler (int irq, void *dev_id);
int button_init (void);
int button_add_callback (void (*callback) (void), int count);
int button_del_callback (void (*callback) (void));
static void button_consume_callbacks (int bpcount);
#else /* Not compiling the driver itself */
extern int button_add_callback (void (*callback) (void), int count);
extern int button_del_callback (void (*callback) (void));
#endif /* __NWBUTTON_C */
#endif /* __NWBUTTON_H */
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