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LoadPin: Report friendly block device name

Browse source 
Instead of only reporting major/minor, include the actual block device
name, at least as seen by the kernel.

Signed-off-by: Kees Cook <[email protected]>
This commit is contained in:
Kees Cook 2018-10-03 17:38:37 -07:00
commit f4b626d6de
1 changed files with 4 additions and 1 deletions
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5
security/loadpin/loadpin.c
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@ -84,8 +84,11 @@ static void check_pinning_enforcement(struct super_block *mnt_sb)
* device, allow sysctl to change modes for testing.
*/
if (mnt_sb->s_bdev) {
char bdev[BDEVNAME_SIZE];
ro = bdev_read_only(mnt_sb->s_bdev);
pr_info("dev(%u,%u): %s\n",
bdevname(mnt_sb->s_bdev, bdev);
pr_info("%s (%u:%u): %s\n", bdev,
MAJOR(mnt_sb->s_bdev->bd_dev),
MINOR(mnt_sb->s_bdev->bd_dev),
ro ? "read-only" : "writable");