WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

[Xen-devel] [patch 10/24] Xen-paravirt_ops: remove HAVE_ARCH_MM_LIFETIME

To: Andi Kleen <ak@xxxxxx>
Subject: [Xen-devel] [patch 10/24] Xen-paravirt_ops: remove HAVE_ARCH_MM_LIFETIME, define no-op architecture implementations
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Wed, 21 Feb 2007 12:53:04 -0800
Cc: Zachary Amsden <zach@xxxxxxxxxx>, linux-arch@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, Rusty Russell <rusty@xxxxxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, Chris Wright <chrisw@xxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxx, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Delivery-date: Wed, 21 Feb 2007 13:01:27 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <20070221205254.169835700@xxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: quilt/0.46-1
akpm:
> Can we lose __HAVE_ARCH_MM_LIFETIME?  Just define these (preferably in C,
> not in cpp) in the appropriate include/asm-foo/ files?

Signed-off-by: Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>
Cc: linux-arch@xxxxxxxxxxxxxxx

---
 include/asm-alpha/mmu_context.h     |    9 +++++++++
 include/asm-arm/mmu_context.h       |    9 +++++++++
 include/asm-arm26/mmu_context.h     |    9 +++++++++
 include/asm-avr32/mmu_context.h     |    9 +++++++++
 include/asm-cris/mmu_context.h      |    8 ++++++++
 include/asm-frv/mmu_context.h       |    8 ++++++++
 include/asm-h8300/mmu_context.h     |    8 ++++++++
 include/asm-i386/mmu_context.h      |    2 +-
 include/asm-i386/paravirt.h         |   18 +++++++++++++++---
 include/asm-ia64/mmu_context.h      |    8 ++++++++
 include/asm-m32r/mmu_context.h      |    8 ++++++++
 include/asm-m68k/mmu_context.h      |    8 ++++++++
 include/asm-m68knommu/mmu_context.h |    8 ++++++++
 include/asm-mips/mmu_context.h      |    8 ++++++++
 include/asm-parisc/mmu_context.h    |    9 +++++++++
 include/asm-powerpc/mmu_context.h   |   10 ++++++++++
 include/asm-ppc/mmu_context.h       |    9 +++++++++
 include/asm-s390/mmu_context.h      |    8 ++++++++
 include/asm-sh/mmu_context.h        |    8 ++++++++
 include/asm-sh64/mmu_context.h      |    8 ++++++++
 include/asm-sparc/mmu_context.h     |    8 ++++++++
 include/asm-sparc64/mmu_context.h   |    8 ++++++++
 include/asm-um/mmu_context.h        |    8 ++++++++
 include/asm-v850/mmu_context.h      |    8 ++++++++
 include/asm-x86_64/mmu_context.h    |    8 ++++++++
 include/asm-xtensa/mmu_context.h    |    9 +++++++++
 include/linux/sched.h               |    6 ------
 27 files changed, 217 insertions(+), 10 deletions(-)

===================================================================
--- a/include/asm-alpha/mmu_context.h
+++ b/include/asm-alpha/mmu_context.h
@@ -256,4 +256,13 @@ enter_lazy_tlb(struct mm_struct *mm, str
 #undef __MMU_EXTERN_INLINE
 #endif
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
+
 #endif /* __ALPHA_MMU_CONTEXT_H */
===================================================================
--- a/include/asm-arm/mmu_context.h
+++ b/include/asm-arm/mmu_context.h
@@ -108,4 +108,13 @@ switch_mm(struct mm_struct *prev, struct
 #define deactivate_mm(tsk,mm)  do { } while (0)
 #define activate_mm(prev,next) switch_mm(prev, next, NULL)
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
+
 #endif
===================================================================
--- a/include/asm-arm26/mmu_context.h
+++ b/include/asm-arm26/mmu_context.h
@@ -48,4 +48,13 @@ static inline void activate_mm(struct mm
        cpu_switch_mm(next->pgd, next);
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
+
 #endif
===================================================================
--- a/include/asm-avr32/mmu_context.h
+++ b/include/asm-avr32/mmu_context.h
@@ -145,4 +145,13 @@ static inline void disable_mmu(void)
        sysreg_write(MMUCR, SYSREG_BIT(MMUCR_S));
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
+
 #endif /* __ASM_AVR32_MMU_CONTEXT_H */
===================================================================
--- a/include/asm-cris/mmu_context.h
+++ b/include/asm-cris/mmu_context.h
@@ -21,4 +21,12 @@ static inline void enter_lazy_tlb(struct
 {
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif
===================================================================
--- a/include/asm-frv/mmu_context.h
+++ b/include/asm-frv/mmu_context.h
@@ -46,4 +46,12 @@ do {                                         \
 do {                                           \
 } while(0)
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif
===================================================================
--- a/include/asm-h8300/mmu_context.h
+++ b/include/asm-h8300/mmu_context.h
@@ -28,4 +28,12 @@ static inline void activate_mm(struct mm
 {
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif
===================================================================
--- a/include/asm-i386/mmu_context.h
+++ b/include/asm-i386/mmu_context.h
@@ -68,7 +68,7 @@ static inline void switch_mm(struct mm_s
 
 #define activate_mm(prev, next)                                \
        do {                                            \
-               arch_activate_mm(prev, next);           \
+               paravirt_activate_mm(prev, next);       \
                switch_mm((prev),(next),NULL);          \
        } while(0);
 
===================================================================
--- a/include/asm-i386/paravirt.h
+++ b/include/asm-i386/paravirt.h
@@ -432,9 +432,8 @@ static inline void startup_ipi_hook(int 
 }
 #endif
 
-#define __HAVE_ARCH_MM_LIFETIME
-static inline void arch_activate_mm(struct mm_struct *prev,
-                                   struct mm_struct *next)
+static inline void paravirt_activate_mm(struct mm_struct *prev,
+                                       struct mm_struct *next)
 {
        paravirt_ops.activate_mm(prev, next);
 }
@@ -695,5 +694,18 @@ static inline void paravirt_pagetable_se
 #endif
 }
 
+static inline void paravirt_activate_mm(struct mm_struct *prev,
+                                       struct mm_struct *next)
+{
+}
+
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif /* CONFIG_PARAVIRT */
 #endif /* __ASM_PARAVIRT_H */
===================================================================
--- a/include/asm-ia64/mmu_context.h
+++ b/include/asm-ia64/mmu_context.h
@@ -197,5 +197,13 @@ activate_mm (struct mm_struct *prev, str
 
 #define switch_mm(prev_mm,next_mm,next_task)   activate_mm(prev_mm, next_mm)
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 # endif /* ! __ASSEMBLY__ */
 #endif /* _ASM_IA64_MMU_CONTEXT_H */
===================================================================
--- a/include/asm-m32r/mmu_context.h
+++ b/include/asm-m32r/mmu_context.h
@@ -157,6 +157,14 @@ static inline void switch_mm(struct mm_s
 #define enter_lazy_tlb(mm,tsk)          do { } while (0)
 #endif /* not CONFIG_MMU */
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif /* not __ASSEMBLY__ */
 
 #endif /* __KERNEL__ */
===================================================================
--- a/include/asm-m68k/mmu_context.h
+++ b/include/asm-m68k/mmu_context.h
@@ -149,5 +149,13 @@ static inline void activate_mm(struct mm
        activate_context(next_mm);
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif
 #endif
===================================================================
--- a/include/asm-m68knommu/mmu_context.h
+++ b/include/asm-m68knommu/mmu_context.h
@@ -29,4 +29,12 @@ static inline void activate_mm(struct mm
 {
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif
===================================================================
--- a/include/asm-mips/mmu_context.h
+++ b/include/asm-mips/mmu_context.h
@@ -293,4 +293,12 @@ drop_mmu_context(struct mm_struct *mm, u
        local_irq_restore(flags);
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif /* _ASM_MMU_CONTEXT_H */
===================================================================
--- a/include/asm-parisc/mmu_context.h
+++ b/include/asm-parisc/mmu_context.h
@@ -70,4 +70,13 @@ static inline void activate_mm(struct mm
 
        switch_mm(prev,next,current);
 }
+
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif
===================================================================
--- a/include/asm-powerpc/mmu_context.h
+++ b/include/asm-powerpc/mmu_context.h
@@ -80,5 +80,15 @@ static inline void activate_mm(struct mm
 }
 
 #endif /* CONFIG_PPC64 */
+
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_POWERPC_MMU_CONTEXT_H */
===================================================================
--- a/include/asm-ppc/mmu_context.h
+++ b/include/asm-ppc/mmu_context.h
@@ -197,5 +197,14 @@ static inline void switch_mm(struct mm_s
 
 extern void mmu_context_init(void);
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
+
 #endif /* __PPC_MMU_CONTEXT_H */
 #endif /* __KERNEL__ */
===================================================================
--- a/include/asm-s390/mmu_context.h
+++ b/include/asm-s390/mmu_context.h
@@ -67,4 +67,12 @@ static inline void activate_mm(struct mm
        set_fs(current->thread.mm_segment);
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif /* __S390_MMU_CONTEXT_H */
===================================================================
--- a/include/asm-sh/mmu_context.h
+++ b/include/asm-sh/mmu_context.h
@@ -214,5 +214,13 @@ static inline void disable_mmu(void)
 #define disable_mmu()  do { BUG(); } while (0)
 #endif
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_MMU_CONTEXT_H */
===================================================================
--- a/include/asm-sh64/mmu_context.h
+++ b/include/asm-sh64/mmu_context.h
@@ -203,6 +203,14 @@ enter_lazy_tlb(struct mm_struct *mm, str
 {
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ASM_SH64_MMU_CONTEXT_H */
===================================================================
--- a/include/asm-sparc/mmu_context.h
+++ b/include/asm-sparc/mmu_context.h
@@ -35,6 +35,14 @@ BTFIXUPDEF_CALL(void, switch_mm, struct 
 /* Activate a new MM instance for the current task. */
 #define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL)
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif /* !(__ASSEMBLY__) */
 
 #endif /* !(__SPARC_MMU_CONTEXT_H) */
===================================================================
--- a/include/asm-sparc64/mmu_context.h
+++ b/include/asm-sparc64/mmu_context.h
@@ -147,6 +147,14 @@ static inline void activate_mm(struct mm
        spin_unlock_irqrestore(&mm->context.lock, flags);
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif /* !(__ASSEMBLY__) */
 
 #endif /* !(__SPARC64_MMU_CONTEXT_H) */
===================================================================
--- a/include/asm-um/mmu_context.h
+++ b/include/asm-um/mmu_context.h
@@ -74,6 +74,14 @@ static inline void destroy_context(struc
        CHOOSE_MODE((void) 0, destroy_context_skas(mm));
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif
 
 /*
===================================================================
--- a/include/asm-v850/mmu_context.h
+++ b/include/asm-v850/mmu_context.h
@@ -8,4 +8,12 @@
 #define activate_mm(prev,next)         ((void)0)
 #define enter_lazy_tlb(mm,tsk)         ((void)0)
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 #endif /* __V850_MMU_CONTEXT_H__ */
===================================================================
--- a/include/asm-x86_64/mmu_context.h
+++ b/include/asm-x86_64/mmu_context.h
@@ -69,5 +69,13 @@ static inline void switch_mm(struct mm_s
 #define activate_mm(prev, next) \
        switch_mm((prev),(next),NULL)
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
 
 #endif
===================================================================
--- a/include/asm-xtensa/mmu_context.h
+++ b/include/asm-xtensa/mmu_context.h
@@ -131,4 +131,13 @@ static inline void enter_lazy_tlb(struct
 
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+                                struct mm_struct *mm)
+{
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
+
 #endif /* _XTENSA_MMU_CONTEXT_H */
===================================================================
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -374,12 +374,6 @@ struct mm_struct {
        rwlock_t                ioctx_list_lock;
        struct kioctx           *ioctx_list;
 };
-
-#ifndef __HAVE_ARCH_MM_LIFETIME
-#define arch_activate_mm(prev, next)   do {} while(0)
-#define arch_dup_mmap(oldmm, mm)       do {} while(0)
-#define arch_exit_mmap(mm)             do {} while(0)
-#endif
 
 struct sighand_struct {
        atomic_t                count;
===================================================================
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -29,6 +29,7 @@
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
 #include <asm/tlb.h>
+#include <asm/mmu_context.h>
 
 #ifndef arch_mmap_check
 #define arch_mmap_check(addr, len, flags)      (0)

-- 


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread] Current Thread [Next in Thread>