The patch titled mips: implement save_stack_trace_tsk() has been removed from the -mm tree. Its filename was mips-implement-save_stack_trace_tsk.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: mips: implement save_stack_trace_tsk() From: Alexey Dobriyan <adobriyan@xxxxxxxxx> fs/built-in.o(.text.proc_pid_stack+0xc8): In function `proc_pid_stack': : undefined reference to `save_stack_trace_tsk' Partially revert ab1b6f03a10ba1f5638188ab06bf46e33ac3a160 aka "simplify the stacktrace code" for /proc/*/stack et al. Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx> Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/mips/kernel/stacktrace.c | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) diff -puN arch/mips/kernel/stacktrace.c~mips-implement-save_stack_trace_tsk arch/mips/kernel/stacktrace.c --- a/arch/mips/kernel/stacktrace.c~mips-implement-save_stack_trace_tsk +++ a/arch/mips/kernel/stacktrace.c @@ -32,7 +32,8 @@ static void save_raw_context_stack(struc } } -static void save_context_stack(struct stack_trace *trace, struct pt_regs *regs) +static void save_context_stack(struct stack_trace *trace, + struct task_struct *tsk, struct pt_regs *regs) { unsigned long sp = regs->regs[29]; #ifdef CONFIG_KALLSYMS @@ -41,7 +42,7 @@ static void save_context_stack(struct st if (raw_show_trace || !__kernel_text_address(pc)) { unsigned long stack_page = - (unsigned long)task_stack_page(current); + (unsigned long)task_stack_page(tsk); if (stack_page && sp >= stack_page && sp <= stack_page + THREAD_SIZE - 32) save_raw_context_stack(trace, sp); @@ -54,7 +55,7 @@ static void save_context_stack(struct st trace->entries[trace->nr_entries++] = pc; if (trace->nr_entries >= trace->max_entries) break; - pc = unwind_stack(current, &sp, pc, &ra); + pc = unwind_stack(tsk, &sp, pc, &ra); } while (pc); #else save_raw_context_stack(trace, sp); @@ -66,12 +67,23 @@ static void save_context_stack(struct st */ void save_stack_trace(struct stack_trace *trace) { + save_stack_trace_tsk(current, trace); +} +EXPORT_SYMBOL_GPL(save_stack_trace); + +void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) +{ struct pt_regs dummyregs; struct pt_regs *regs = &dummyregs; WARN_ON(trace->nr_entries || !trace->max_entries); - prepare_frametrace(regs); - save_context_stack(trace, regs); + if (tsk != current) { + regs->regs[29] = tsk->thread.reg29; + regs->regs[31] = 0; + regs->cp0_epc = tsk->thread.reg31; + } else + prepare_frametrace(regs); + save_context_stack(trace, tsk, regs); } -EXPORT_SYMBOL_GPL(save_stack_trace); +EXPORT_SYMBOL_GPL(save_stack_trace_tsk); _ Patches currently in -mm which might be from adobriyan@xxxxxxxxx are linux-next.patch tags-skip-in-filenames.patch kconfig-add-module_name-shortcut.patch tags-link-from-config_x-to-config-x-as-well.patch mpt-remove-unused-struct-mpt_proc_entry_t.patch vfs-fix-switch_names-breakage-in-short-to-short-case.patch mm-report-the-pagesize-backing-a-vma-in-proc-pid-smaps.patch mm-report-the-mmu-pagesize-in-proc-pid-smaps.patch remove-remaining-unwinder-code.patch ipc-ipc_sysctlc-move-the-definition-of-ipc_auto_callback.patch profile-likely-unlikely-macros.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html