Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs updates from Al Viro:
 "Assorted bits and pieces"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  aio: drop needless assignment in aio_read()
  clean overflow checks in count_mounts() a bit
  seq_file: fix NULL pointer arithmetic warning
  uml/x86: use x86 load_unaligned_zeropad()
  asm/user.h: killed unused macros
  constify struct path argument of finish_automount()/do_add_mount()
  fs: Remove FIXME comment in generic_write_checks()

13 files changed, 1 insertions, 74 deletions

diff --git a/arch/alpha/include/asm/user.h b/arch/alpha/include/asm/user.h
index 3df37492c7b7..c9f525a6aab8 100644
--- a/arch/alpha/include/asm/user.h
+++ b/arch/alpha/include/asm/user.h
@@ -45,10 +45,4 @@ struct user {
 	char		u_comm[32];		/* user command name */
 };
 
-#define NBPG			PAGE_SIZE
-#define UPAGES			1
-#define HOST_TEXT_START_ADDR	(u.start_code)
-#define HOST_DATA_START_ADDR	(u.start_data)
-#define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
-
 #endif /* _ALPHA_USER_H */
diff --git a/arch/arm/include/asm/user.h b/arch/arm/include/asm/user.h
index c799a3c49342..167d44b550f4 100644
--- a/arch/arm/include/asm/user.h
+++ b/arch/arm/include/asm/user.h
@@ -77,10 +77,6 @@ struct user{
   struct user_fp_struct * u_fp0;/* Used by gdb to help find the values for */
   				/* the FP registers. */
 };
-#define NBPG PAGE_SIZE
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR (u.start_code)
-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
 
 /*
  * User specific VFP registers. If only VFPv2 is present, registers 16 to 31
diff --git a/arch/h8300/include/asm/user.h b/arch/h8300/include/asm/user.h
index 2298909f24c6..161653d84b34 100644
--- a/arch/h8300/include/asm/user.h
+++ b/arch/h8300/include/asm/user.h
@@ -67,9 +67,5 @@ struct user {
 	unsigned long magic;		/* To uniquely identify a core file */
 	char u_comm[32];		/* User command that was responsible */
 };
-#define NBPG PAGE_SIZE
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR (u.start_code)
-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
 
 #endif
diff --git a/arch/ia64/include/asm/user.h b/arch/ia64/include/asm/user.h
index 0ba486651b7c..ec03d3ab8715 100644
--- a/arch/ia64/include/asm/user.h
+++ b/arch/ia64/include/asm/user.h
@@ -50,10 +50,4 @@ struct user {
 	char		u_comm[32];		/* user command name */
 };
 
-#define NBPG			PAGE_SIZE
-#define UPAGES			1
-#define HOST_TEXT_START_ADDR	(u.start_code)
-#define HOST_DATA_START_ADDR	(u.start_data)
-#define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
-
 #endif /* _ASM_IA64_USER_H */
diff --git a/arch/m68k/include/asm/user.h b/arch/m68k/include/asm/user.h
index 509d555977c8..61413bff613a 100644
--- a/arch/m68k/include/asm/user.h
+++ b/arch/m68k/include/asm/user.h
@@ -79,9 +79,5 @@ struct user{
   unsigned long magic;		/* To uniquely identify a core file */
   char u_comm[32];		/* User command that was responsible */
 };
-#define NBPG 4096
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR (u.start_code)
-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
 
 #endif
diff --git a/arch/powerpc/include/asm/user.h b/arch/powerpc/include/asm/user.h
index 99443b8594e7..7fae7e597ba4 100644
--- a/arch/powerpc/include/asm/user.h
+++ b/arch/powerpc/include/asm/user.h
@@ -44,9 +44,4 @@ struct user {
 	char		u_comm[32];		/* user command name */
 };
 
-#define NBPG			PAGE_SIZE
-#define UPAGES			1
-#define HOST_TEXT_START_ADDR	(u.start_code)
-#define HOST_DATA_START_ADDR	(u.start_data)
-#define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
 #endif	/* _ASM_POWERPC_USER_H */
diff --git a/arch/s390/include/asm/user.h b/arch/s390/include/asm/user.h
index 0ca572ced21b..8e8aaf48582e 100644
--- a/arch/s390/include/asm/user.h
+++ b/arch/s390/include/asm/user.h
@@ -67,9 +67,5 @@ struct user {
   unsigned long magic;		/* To uniquely identify a core file */
   char u_comm[32];		/* User command that was responsible */
 };
-#define NBPG PAGE_SIZE
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR (u.start_code)
-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
 
 #endif /* _S390_USER_H */
diff --git a/arch/sh/include/asm/user.h b/arch/sh/include/asm/user.h
index 7dfd3f6461e6..12ea0f3f4419 100644
--- a/arch/sh/include/asm/user.h
+++ b/arch/sh/include/asm/user.h
@@ -52,10 +52,4 @@ struct user {
 	char		u_comm[32];		/* user command name */
 };
 
-#define NBPG			PAGE_SIZE
-#define UPAGES			1
-#define HOST_TEXT_START_ADDR	(u.start_code)
-#define HOST_DATA_START_ADDR	(u.start_data)
-#define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
-
 #endif /* __ASM_SH_USER_H */
diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
index b08bd2966253..f1f3f52f1e9c 100644
--- a/arch/um/include/asm/Kbuild
+++ b/arch/um/include/asm/Kbuild
@@ -24,7 +24,6 @@ generic-y += softirq_stack.h
 generic-y += switch_to.h
 generic-y += topology.h
 generic-y += trace_clock.h
-generic-y += word-at-a-time.h
 generic-y += kprobes.h
 generic-y += mm_hooks.h
 generic-y += vga.h
diff --git a/arch/x86/include/asm/user_32.h b/arch/x86/include/asm/user_32.h
index d72c3d66e94f..8963915e533f 100644
--- a/arch/x86/include/asm/user_32.h
+++ b/arch/x86/include/asm/user_32.h
@@ -124,9 +124,5 @@ struct user{
   char u_comm[32];		/* User command that was responsible */
   int u_debugreg[8];
 };
-#define NBPG PAGE_SIZE
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR (u.start_code)
-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
 
 #endif /* _ASM_X86_USER_32_H */
diff --git a/arch/x86/include/asm/user_64.h b/arch/x86/include/asm/user_64.h
index db909923611c..1dd10f07ccd6 100644
--- a/arch/x86/include/asm/user_64.h
+++ b/arch/x86/include/asm/user_64.h
@@ -130,9 +130,5 @@ struct user {
   unsigned long error_code; /* CPU error code or 0 */
   unsigned long fault_address; /* CR3 or 0 */
 };
-#define NBPG PAGE_SIZE
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR (u.start_code)
-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
 
 #endif /* _ASM_X86_USER_64_H */
diff --git a/arch/x86/lib/csum-partial_64.c b/arch/x86/lib/csum-partial_64.c
index 1f8a8f895173..50734a23034c 100644
--- a/arch/x86/lib/csum-partial_64.c
+++ b/arch/x86/lib/csum-partial_64.c
@@ -93,7 +93,6 @@ __wsum csum_partial(const void *buff, int len, __wsum sum)
 		buff += 8;
 	}
 	if (len & 7) {
-#ifdef CONFIG_DCACHE_WORD_ACCESS
 		unsigned int shift = (8 - (len & 7)) * 8;
 		unsigned long trail;
 
@@ -103,31 +102,6 @@ __wsum csum_partial(const void *buff, int len, __wsum sum)
 		    "adcq $0,%[res]"
 			: [res] "+r" (temp64)
 			: [trail] "r" (trail));
-#else
-		if (len & 4) {
-			asm("addq %[val],%[res]\n\t"
-			    "adcq $0,%[res]"
-				: [res] "+r" (temp64)
-				: [val] "r" ((u64)*(u32 *)buff)
-				: "memory");
-			buff += 4;
-		}
-		if (len & 2) {
-			asm("addq %[val],%[res]\n\t"
-			    "adcq $0,%[res]"
-				: [res] "+r" (temp64)
-				: [val] "r" ((u64)*(u16 *)buff)
-				: "memory");
-			buff += 2;
-		}
-		if (len & 1) {
-			asm("addq %[val],%[res]\n\t"
-			    "adcq $0,%[res]"
-				: [res] "+r" (temp64)
-				: [val] "r" ((u64)*(u8 *)buff)
-				: "memory");
-		}
-#endif
 	}
 	result = add32_with_carry(temp64 >> 32, temp64 & 0xffffffff);
 	if (unlikely(odd)) {
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index ead7e5b3a975..1bcd42c53039 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -9,6 +9,7 @@ endmenu
 config UML_X86
 	def_bool y
 	select ARCH_BINFMT_ELF_EXTRA_PHDRS if X86_32
+	select DCACHE_WORD_ACCESS
 
 config 64BIT
 	bool "64-bit kernel" if "$(SUBARCH)" = "x86"