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It is silly for user_mode_thread to leave PF_KTHREAD set on the resulting task. Update the init process so that it does not care if PF_KTHREAD is set or not. Ensure do_populate_rootfs flushes all delayed fput work by calling task_work_run. In the rare instance that async_schedule_domain calls do_populate_rootfs synchronously it is possible do_populate_rootfs will be called directly from the init process. At which point fput will call "task_work_add(current, ..., TWA_RESUME)". The files on the initramfs need to be completely put before we attempt to exec them (which is before the code enters userspace). So call task_work_run just in case there are any pending fput operations. Link: https://lkml.kernel.org/r/20220506141512.516114-5-ebiederm@xmission.com Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> |
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| .. | ||
| calibrate.c | ||
| do_mounts.c | ||
| do_mounts.h | ||
| do_mounts_initrd.c | ||
| do_mounts_rd.c | ||
| init_task.c | ||
| initramfs.c | ||
| Kconfig | ||
| main.c | ||
| Makefile | ||
| noinitramfs.c | ||
| version.c | ||