CVE-2026-74375: md/raid1,raid10: fix deadlock in read error recovery path

In the Linux kernel, the following vulnerability has been resolved:

md/raid1,raid10: fix deadlock in read error recovery path

raid1d and raid10d may resubmit a split md cloned bio while handling a read error. In this case, resubmitting the bio can lead to a deadlock if the array is suspended before mdhandlerequest() acquires an activeio reference via percpureftrygetlive().

Since the cloned bio already holds an activeio reference, trying to acquire another reference via percpureftrygetlive() can lead to a deadlock while the array is suspended.

Fix this by using percpurefget() for md cloned bios.