[PATCH] memfs_ll: fix deadlock in truncate operation

[PATCH] memfs_ll: fix deadlock in truncate operation

Remove redundant mutex lock acquisition in the truncate() method to
prevent deadlock. The issue occurs when memfs_setattr() already holds
the mutex lock and then calls truncate(), which attempts to acquire
the same lock again.

Signed-off-by: Long Li <leo.lilong@huawei.com>
Gbp-Pq: Name memfs_ll-fix-deadlock.patch