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power: port block device access to file 

Link: https://lore.kernel.org/r/20240123-vfs-bdev-file-v2-6-adbd023e19cc@kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2024-01-23 14:26:23 +01:00
parent 16ca5dfd8d
commit 4379f91172
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
1 changed files with 14 additions and 14 deletions
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28
kernel/power/swap.c
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@ -222,7 +222,7 @@ int swsusp_swap_in_use(void)
*/
static unsigned short root_swap = 0xffff;
static struct bdev_handle *hib_resume_bdev_handle;
static struct file *hib_resume_bdev_file;
struct hib_bio_batch {
atomic_t count;
@ -276,7 +276,7 @@ static int hib_submit_io(blk_opf_t opf, pgoff_t page_off, void *addr,
struct bio *bio;
int error = 0;
bio = bio_alloc(hib_resume_bdev_handle->bdev, 1, opf,
bio = bio_alloc(file_bdev(hib_resume_bdev_file), 1, opf,
GFP_NOIO | __GFP_HIGH);
bio->bi_iter.bi_sector = page_off * (PAGE_SIZE >> 9);
@ -357,14 +357,14 @@ static int swsusp_swap_check(void)
return res;
root_swap = res;
hib_resume_bdev_handle = bdev_open_by_dev(swsusp_resume_device,
hib_resume_bdev_file = bdev_file_open_by_dev(swsusp_resume_device,
BLK_OPEN_WRITE, NULL, NULL);
if (IS_ERR(hib_resume_bdev_handle))
return PTR_ERR(hib_resume_bdev_handle);
if (IS_ERR(hib_resume_bdev_file))
return PTR_ERR(hib_resume_bdev_file);
res = set_blocksize(hib_resume_bdev_handle->bdev, PAGE_SIZE);
res = set_blocksize(file_bdev(hib_resume_bdev_file), PAGE_SIZE);
if (res < 0)
bdev_release(hib_resume_bdev_handle);
fput(hib_resume_bdev_file);
return res;
}
@ -1523,10 +1523,10 @@ int swsusp_check(bool exclusive)
void *holder = exclusive ? &swsusp_holder : NULL;
int error;
hib_resume_bdev_handle = bdev_open_by_dev(swsusp_resume_device,
hib_resume_bdev_file = bdev_file_open_by_dev(swsusp_resume_device,
BLK_OPEN_READ, holder, NULL);
if (!IS_ERR(hib_resume_bdev_handle)) {
set_blocksize(hib_resume_bdev_handle->bdev, PAGE_SIZE);
if (!IS_ERR(hib_resume_bdev_file)) {
set_blocksize(file_bdev(hib_resume_bdev_file), PAGE_SIZE);
clear_page(swsusp_header);
error = hib_submit_io(REQ_OP_READ, swsusp_resume_block,
swsusp_header, NULL);
@ -1551,11 +1551,11 @@ int swsusp_check(bool exclusive)
put:
if (error)
bdev_release(hib_resume_bdev_handle);
fput(hib_resume_bdev_file);
else
pr_debug("Image signature found, resuming\n");
} else {
error = PTR_ERR(hib_resume_bdev_handle);
error = PTR_ERR(hib_resume_bdev_file);
}
if (error)
@ -1570,12 +1570,12 @@ put:
void swsusp_close(void)
{
if (IS_ERR(hib_resume_bdev_handle)) {
if (IS_ERR(hib_resume_bdev_file)) {
pr_debug("Image device not initialised\n");
return;
}
bdev_release(hib_resume_bdev_handle);
fput(hib_resume_bdev_file);
}
/**