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PM: hibernate: Rename function parameter from snapshot_test to exclusive

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Several functions reply on snapshot_test to decide whether to
open the resume device exclusively. However there is no strict
connection between the snapshot_test and the open mode. Rename
the 'snapshot_test' input parameter to 'exclusive' to better reflect
the use case.

No functional change is expected.

Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Chen Yu 2023-09-06 12:18:41 +08:00 committed by Rafael J. Wysocki
parent 0bb80ecc33
commit 40d84e198b
2 changed files with 10 additions and 8 deletions
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4
kernel/power/power.h
View File

@ -168,11 +168,11 @@ extern int swsusp_swap_in_use(void);
#define SF_HW_SIG 8
/* kernel/power/hibernate.c */
int swsusp_check(bool snapshot_test);
int swsusp_check(bool exclusive);
extern void swsusp_free(void);
extern int swsusp_read(unsigned int *flags_p);
extern int swsusp_write(unsigned int flags);
void swsusp_close(bool snapshot_test);
void swsusp_close(bool exclusive);
#ifdef CONFIG_SUSPEND
extern int swsusp_unmark(void);
#endif

14
kernel/power/swap.c
View File

@ -1513,12 +1513,13 @@ end:
static void *swsusp_holder;
/**
* swsusp_check - Check for swsusp signature in the resume device
* swsusp_check - Check for swsusp signature in the resume device
* @exclusive: Open the resume device exclusively.
*/
int swsusp_check(bool snapshot_test)
int swsusp_check(bool exclusive)
{
void *holder = snapshot_test ? &swsusp_holder : NULL;
void *holder = exclusive ? &swsusp_holder : NULL;
int error;
hib_resume_bdev = blkdev_get_by_dev(swsusp_resume_device, BLK_OPEN_READ,
@ -1563,17 +1564,18 @@ put:
}
/**
* swsusp_close - close swap device.
* swsusp_close - close swap device.
* @exclusive: Close the resume device which is exclusively opened.
*/
void swsusp_close(bool snapshot_test)
void swsusp_close(bool exclusive)
{
if (IS_ERR(hib_resume_bdev)) {
pr_debug("Image device not initialised\n");
return;
}
blkdev_put(hib_resume_bdev, snapshot_test ? &swsusp_holder : NULL);
blkdev_put(hib_resume_bdev, exclusive ? &swsusp_holder : NULL);
}
/**