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Author SHA1 Message Date
Huacai Chen ca98350003 LoongArch: Fix arch_dup_task_struct() for CONFIG_RANDSTRUCT 
Now the optimized version of arch_dup_task_struct() for LoongArch
assumes 'thread' is the last member of 'task_struct'. But this is
not true if CONFIG_RANDSTRUCT is enabled after Linux-6.16.

So fix the arch_dup_task_struct() function for CONFIG_RANDSTRUCT by
copying the whole 'task_struct'.

Cc: stable@vger.kernel.org   # 6.16+
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
 2026-02-04 16:40:44 +08:00
Charlie Jenkins 9d95b25da7 LoongArch: entry: Migrate ret_from_fork() to C 
LoongArch is the only architecture that calls syscall_exit_to_user_mode()
from assembly.

Move the call into C so that this function can be inlined across all
architectures.

Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250320-riscv_optimize_entry-v6-3-63e187e26041@rivosinc.com
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
 2025-06-20 08:44:43 +08:00
maoxiaochuan 8b074cffbf init src (linux-6.12.0) 2025-02-13 14:11:16 +08:00