Commit a5100d07 authored by Luo Meng's avatar Luo Meng Committed by Zheng Zengkai
Browse files

dm ioctl: add DMINFO() to track dm device create/remove 

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I61HSS


CVE: NA

--------------------------------

Add DMINFO() to help tracking device creation/removal success.

Signed-off-by: default avatarLuo Meng <luomeng12@huawei.com>
Reviewed-by: default avatarZhang Yi <yi.zhang@huawei.com>
Signed-off-by: default avatarZheng Zengkai <zhengzengkai@huawei.com>
parent cdad681c

drivers/md/dm-ioctl.c

+7 −0
Original line number Diff line number Diff line
@@ -272,6 +272,9 @@ static struct dm_table *__hash_remove(struct hash_cell *hc) 
	table = NULL;

	if (hc->new_map)

		table = hc->new_map;



	DMINFO("%s[%i]: %s (%s) is removed successfully",

		current->comm, current->pid, hc->md->disk->disk_name, hc->name);

	dm_put(hc->md);

	free_cell(hc);
@@ -773,6 +776,7 @@ static int dev_create(struct file *filp, struct dm_ioctl *param, size_t param_si 
{

	int r, m = DM_ANY_MINOR;

	struct mapped_device *md;

	struct hash_cell *hc;



	r = check_name(param->name);

	if (r)
@@ -796,6 +800,9 @@ static int dev_create(struct file *filp, struct dm_ioctl *param, size_t param_si 


	__dev_status(md, param);



	hc = dm_get_mdptr(md);

	DMINFO("%s[%i]: %s (%s) is created successfully",

		current->comm, current->pid, md->disk->disk_name, hc->name);

	dm_put(md);



	return 0;