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moto_swap: Add SWP_SYNCHRONOUS_IO cmd for ioctl

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Currently, swap_slot_has_sync_io() will always return true to
skip readahead since ramboost2.0 is SWP_SYNCHRONOUS_IO

Change-Id: I84a495f3de464e8c68ccd3d43de2c0b44f3e3fb2
Reviewed-on: https://gerrit.mot.com/2784761
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Yonghui Jia <jiayh2@motorola.com>
Reviewed-by: Zhangqing Huang <huangzq2@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Xiaojun Ji 2023-11-03 16:17:54 +08:00 • committed by PDO SCM Team
commit a7dc815fa5
1 changed files with 17 additions and 0 deletions
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17
drivers/moto_swap/zram-5.4/zram_drv.c
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@ -1752,6 +1752,22 @@ static void zram_slot_free_notify(struct block_device *bdev,
zram_slot_unlock(zram, index);
}
static int zram_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long index)
{
struct zram *zram;
int has_sync_io = 1;
if (cmd != SWP_SYNCHRONOUS_IO) return -EINVAL;
zram = bdev->bd_disk->private_data;
zram_slot_lock(zram, index);
has_sync_io = zram_test_flag(zram, index, ZRAM_WB) ? 0 : 1;
zram_slot_unlock(zram, index);
return has_sync_io;
}
static int zram_rw_page(struct block_device *bdev, sector_t sector,
struct page *page, unsigned int op)
{
@ -1944,6 +1960,7 @@ static int zram_open(struct block_device *bdev, fmode_t mode)
static const struct block_device_operations zram_devops = {
.open = zram_open,
.swap_slot_free_notify = zram_slot_free_notify,
.ioctl = zram_ioctl,
.rw_page = zram_rw_page,
.owner = THIS_MODULE
};