linux-stable/arch/riscv/kernel
Matthew Wilcox (Oracle) 5d8de293c2 vmcore: convert copy_oldmem_page() to take an iov_iter
Patch series "Convert vmcore to use an iov_iter", v5.

For some reason several people have been sending bad patches to fix
compiler warnings in vmcore recently.  Here's how it should be done. 
Compile-tested only on x86.  As noted in the first patch, s390 should take
this conversion a bit further, but I'm not inclined to do that work
myself.


This patch (of 3):

Instead of passing in a 'buf' and 'userbuf' argument, pass in an iov_iter.
s390 needs more work to pass the iov_iter down further, or refactor, but
I'd be more comfortable if someone who can test on s390 did that work.

It's more convenient to convert the whole of read_from_oldmem() to take an
iov_iter at the same time, so rename it to read_from_oldmem_iter() and add
a temporary read_from_oldmem() wrapper that creates an iov_iter.

Link: https://lkml.kernel.org/r/20220408090636.560886-1-bhe@redhat.com
Link: https://lkml.kernel.org/r/20220408090636.560886-2-bhe@redhat.com
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-04-29 14:37:59 -07:00
..
probes ftrace: disable preemption when recursion locked 2021-10-27 11:21:49 -04:00
vdso riscv/vdso: Add support for time namespaces 2021-10-04 14:16:43 -07:00
.gitignore
Makefile RISC-V CPU Idle Support 2022-03-30 16:17:54 -07:00
asm-offsets.c RISC-V: Add arch functions for non-retentive suspend entry/exit 2022-03-10 09:29:31 -08:00
cacheinfo.c drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION() 2021-09-01 10:29:10 +02:00
cpu-hotplug.c riscv: cpu-hotplug: clear cpu from numa map when teardown 2022-02-10 09:16:50 -08:00
cpu.c riscv: cpu.c: don't use kernel-doc markers for comments 2022-03-31 15:42:46 -07:00
cpu_ops.c RISC-V: Move spinwait booting method to its own config 2022-01-20 09:27:16 -08:00
cpu_ops_sbi.c RISC-V: Declare per cpu boot data as static 2022-03-31 12:44:32 -07:00
cpu_ops_spinwait.c RISC-V: Use __cpu_up_stack/task_pointer only for spinwait method 2022-01-20 09:27:08 -08:00
cpufeature.c RISC-V: Add sscofpmf extension support 2022-03-21 15:01:09 -07:00
crash_dump.c vmcore: convert copy_oldmem_page() to take an iov_iter 2022-04-29 14:37:59 -07:00
crash_save_regs.S RISC-V: Add kdump support 2021-04-26 08:25:23 -07:00
efi-header.S RISC-V: Add PE/COFF header for EFI stub 2020-10-02 14:31:16 -07:00
efi.c RISC-V: Add EFI runtime services 2020-10-02 14:31:28 -07:00
entry.S RISC-V Patches for the 5.18 Merge Window, Part 1 2022-03-25 10:11:38 -07:00
fpu.S
ftrace.c ftrace: Cleanup ftrace_dyn_arch_init() 2021-10-08 19:41:39 -04:00
head.S RISC-V: Add arch functions for non-retentive suspend entry/exit 2022-03-10 09:29:31 -08:00
head.h RISC-V: Move spinwait booting method to its own config 2022-01-20 09:27:16 -08:00
image-vars.h arch/riscv:fix typo in a comment in arch/riscv/kernel/image-vars.h 2021-02-18 23:18:00 -08:00
irq.c RISC-V: Remove do_IRQ() function 2020-06-09 19:11:24 -07:00
jump_label.c riscv: Add jump-label implementation 2020-07-30 11:37:43 -07:00
kexec_relocate.S riscv: Don't use va_pa_offset on kdump 2022-01-09 10:38:06 -08:00
kgdb.c riscv: Fix "no previous prototype" compile warning in kgdb.c file 2020-07-09 20:09:30 -07:00
machine_kexec.c riscv: use hart id instead of cpu id on machine_kexec 2022-01-09 10:40:00 -08:00
mcount-dyn.S riscv: Using PATCHABLE_FUNCTION_ENTRY instead of MCOUNT 2021-01-14 15:09:05 -08:00
mcount.S riscv: Workaround mcount name prior to clang-13 2021-04-26 08:25:01 -07:00
module-sections.c
module.c RISC-V: module: fix apply_r_riscv_rcv_branch_rela typo 2022-03-31 13:20:11 -07:00
patch.c riscv: Fixup compile error BUILD_BUG_ON failed 2021-01-14 15:09:01 -08:00
perf_callchain.c riscv: Fix fill_callchain return value 2022-03-30 23:01:42 -07:00
perf_regs.c perf/arch: Remove perf_sample_data::regs_user_copy 2020-11-09 18:12:34 +01:00
process.c RISC-V: Enable CPU_IDLE drivers 2022-03-10 09:29:21 -08:00
ptrace.c ptrace: Create ptrace_report_syscall_{entry,exit} in ptrace.h 2022-03-10 13:35:08 -06:00
reset.c riscv: set default pm_power_off to NULL 2021-10-04 14:16:57 -07:00
riscv_ksyms.c riscv: provide memmove implementation 2020-12-10 17:27:54 -08:00
sbi.c RISC-V: Fix IPI/RFENCE hmask on non-monotonic hartid ordering 2022-02-14 12:27:45 -08:00
setup.c drivers/base/node: consolidate node device subsystem initialization in node_dev_init() 2022-03-22 15:57:10 -07:00
signal.c ptrace: Cleanups for v5.18 2022-03-28 17:29:53 -07:00
smp.c RISC-V: Use common riscv_cpuid_to_hartid_mask() for both SMP=y and SMP=n 2022-01-09 12:13:31 -08:00
smpboot.c RISC-V: Do not use cpumask data structure for hartid bitmap 2022-01-20 09:27:22 -08:00
soc.c riscv: Fix builtin DTB handling 2021-01-07 19:00:50 -08:00
stacktrace.c riscv: Rename "sp_in_global" to "current_stack_pointer" 2022-03-30 15:15:27 -07:00
suspend.c RISC-V: Add arch functions for non-retentive suspend entry/exit 2022-03-10 09:29:31 -08:00
suspend_entry.S RISC-V: Add arch functions for non-retentive suspend entry/exit 2022-03-10 09:29:31 -08:00
sys_riscv.c RISC-V: Don't allow write+exec only page mapping request in mmap 2020-06-18 17:28:53 -07:00
syscall_table.c riscv/vdso: Refactor asm/vdso.h 2021-10-02 13:42:23 -07:00
time.c RISC-V Patches for the 5.13 Merge Window, Part 1 2021-05-06 09:24:18 -07:00
trace_irq.c riscv: fix oops caused by irqsoff latency tracer 2022-02-24 20:30:30 -08:00
trace_irq.h riscv: fix oops caused by irqsoff latency tracer 2022-02-24 20:30:30 -08:00
traps.c exit: Add and use make_task_dead. 2021-12-13 12:04:45 -06:00
traps_misaligned.c
vdso.c riscv/vdso: Add support for time namespaces 2021-10-04 14:16:43 -07:00
vmlinux-xip.lds.S riscv: vmlinux.lds.S|vmlinux-xip.lds.S: remove `.fixup` section 2022-01-05 17:53:37 -08:00
vmlinux.lds.S riscv: vmlinux.lds.S|vmlinux-xip.lds.S: remove `.fixup` section 2022-01-05 17:53:37 -08:00