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d0f102fce3
Extract the initramfs unpacking code into a separate unpack_initramfs() function and wrap its invocation from do_populate_rootfs() with scoped_with_init_fs(). This ensures all file operations during initramfs unpacking (including filp_open() calls in do_name() and populate_initrd_image()) happen in init's filesystem context. Note that security_initramfs_populated() needs the scope as well since it does use current->fs to derive the initramfs superblock. do_populate_rootfs() ← async_schedule_domain() ← kworker (async workqueue) May also run synchronously from PID 1 in case async workqueue is considered full. Overriding in that case is fine as well. Link: https://patch.msgid.link/20260601-work-kthread-nullfs-v4-17-77ee053060e0@kernel.org Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>