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authorSouptick Joarder <jrdr.linux@gmail.com>2018-08-17 15:44:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-17 16:20:28 -0700
commit50a7ca3c6fc86955f99fc432fc8a186b968b365b (patch)
tree7918bfb3ef8558bfadbc362d0f1bae79bb20d729 /arch/powerpc
parent0882ff9190e3bc51e2d78c3aadd7c690eeaa91d5 (diff)
mm: convert return type of handle_mm_fault() caller to vm_fault_t
Use new return type vm_fault_t for fault handler. For now, this is just documenting that the function returns a VM_FAULT value rather than an errno. Once all instances are converted, vm_fault_t will become a distinct type. Ref-> commit 1c8f422059ae ("mm: change return type to vm_fault_t") In this patch all the caller of handle_mm_fault() are changed to return vm_fault_t type. Link: http://lkml.kernel.org/r/20180617084810.GA6730@jordon-HP-15-Notebook-PC Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Tony Luck <tony.luck@intel.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michal Simek <monstr@monstr.eu> Cc: James Hogan <jhogan@kernel.org> Cc: Ley Foon Tan <lftan@altera.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: David S. Miller <davem@davemloft.net> Cc: Richard Weinberger <richard@nod.at> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/copro.h4
-rw-r--r--arch/powerpc/mm/copro_fault.c2
-rw-r--r--arch/powerpc/mm/fault.c7
-rw-r--r--arch/powerpc/platforms/cell/spufs/fault.c2
4 files changed, 9 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/copro.h b/arch/powerpc/include/asm/copro.h
index ce216df31381..48616fe7ea75 100644
--- a/arch/powerpc/include/asm/copro.h
+++ b/arch/powerpc/include/asm/copro.h
@@ -10,13 +10,15 @@
#ifndef _ASM_POWERPC_COPRO_H
#define _ASM_POWERPC_COPRO_H
+#include <linux/mm_types.h>
+
struct copro_slb
{
u64 esid, vsid;
};
int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
- unsigned long dsisr, unsigned *flt);
+ unsigned long dsisr, vm_fault_t *flt);
int copro_calculate_slb(struct mm_struct *mm, u64 ea, struct copro_slb *slb);
diff --git a/arch/powerpc/mm/copro_fault.c b/arch/powerpc/mm/copro_fault.c
index 7d0945bd3a61..c8da352e8686 100644
--- a/arch/powerpc/mm/copro_fault.c
+++ b/arch/powerpc/mm/copro_fault.c
@@ -34,7 +34,7 @@
* to handle fortunately.
*/
int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
- unsigned long dsisr, unsigned *flt)
+ unsigned long dsisr, vm_fault_t *flt)
{
struct vm_area_struct *vma;
unsigned long is_write;
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index b1ca7a0974e3..7c061313cc6f 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -156,7 +156,7 @@ static noinline int bad_access(struct pt_regs *regs, unsigned long address)
}
static int do_sigbus(struct pt_regs *regs, unsigned long address,
- unsigned int fault)
+ vm_fault_t fault)
{
siginfo_t info;
unsigned int lsb = 0;
@@ -187,7 +187,8 @@ static int do_sigbus(struct pt_regs *regs, unsigned long address,
return 0;
}
-static int mm_fault_error(struct pt_regs *regs, unsigned long addr, int fault)
+static int mm_fault_error(struct pt_regs *regs, unsigned long addr,
+ vm_fault_t fault)
{
/*
* Kernel page fault interrupted by SIGKILL. We have no reason to
@@ -415,7 +416,7 @@ static int __do_page_fault(struct pt_regs *regs, unsigned long address,
int is_exec = TRAP(regs) == 0x400;
int is_user = user_mode(regs);
int is_write = page_fault_is_write(error_code);
- int fault, major = 0;
+ vm_fault_t fault, major = 0;
bool must_retry = false;
if (notify_page_fault(regs))
diff --git a/arch/powerpc/platforms/cell/spufs/fault.c b/arch/powerpc/platforms/cell/spufs/fault.c
index 1e002e94d0f6..83cf58daaa79 100644
--- a/arch/powerpc/platforms/cell/spufs/fault.c
+++ b/arch/powerpc/platforms/cell/spufs/fault.c
@@ -111,7 +111,7 @@ int spufs_handle_class1(struct spu_context *ctx)
{
u64 ea, dsisr, access;
unsigned long flags;
- unsigned flt = 0;
+ vm_fault_t flt = 0;
int ret;
/*