Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs pile 1 from Al Viro:
 "Unfortunately, this merge window it'll have a be a lot of small piles -
  my fault, actually, for not keeping #for-next in anything that would
  resemble a sane shape ;-/

  This pile: assorted fixes (the first 3 are -stable fodder, IMO) and
  cleanups + %pd/%pD formats (dentry/file pathname, up to 4 last
  components) + several long-standing patches from various folks.

  There definitely will be a lot more (starting with Miklos'
  check_submount_and_drop() series)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (26 commits)
  direct-io: Handle O_(D)SYNC AIO
  direct-io: Implement generic deferred AIO completions
  add formats for dentry/file pathnames
  kvm eventfd: switch to fdget
  powerpc kvm: use fdget
  switch fchmod() to fdget
  switch epoll_ctl() to fdget
  switch copy_module_from_fd() to fdget
  git simplify nilfs check for busy subtree
  ibmasmfs: don't bother passing superblock when not needed
  don't pass superblock to hypfs_{mkdir,create*}
  don't pass superblock to hypfs_diag_create_files
  don't pass superblock to hypfs_vm_create_files()
  oprofile: get rid of pointless forward declarations of struct super_block
  oprofilefs_create_...() do not need superblock argument
  oprofilefs_mkdir() doesn't need superblock argument
  don't bother with passing superblock to oprofile_create_stats_files()
  oprofile: don't bother with passing superblock to ->create_files()
  don't bother passing sb to oprofile_create_files()
  coh901318: don't open-code simple_read_from_buffer()
  ...

12 files changed, 167 insertions, 181 deletions

diff --git a/arch/alpha/oprofile/common.c b/arch/alpha/oprofile/common.c
index b8ce18f485d3..310a4ce1dccc 100644
--- a/arch/alpha/oprofile/common.c
+++ b/arch/alpha/oprofile/common.c
@@ -106,7 +106,7 @@ op_axp_stop(void)
 }
 
 static int
-op_axp_create_files(struct super_block *sb, struct dentry *root)
+op_axp_create_files(struct dentry *root)
 {
 	int i;
 
@@ -115,23 +115,23 @@ op_axp_create_files(struct super_block *sb, struct dentry *root)
 		char buf[4];
 
 		snprintf(buf, sizeof buf, "%d", i);
-		dir = oprofilefs_mkdir(sb, root, buf);
+		dir = oprofilefs_mkdir(root, buf);
 
-		oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled);
-                oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event);
-		oprofilefs_create_ulong(sb, dir, "count", &ctr[i].count);
+		oprofilefs_create_ulong(dir, "enabled", &ctr[i].enabled);
+                oprofilefs_create_ulong(dir, "event", &ctr[i].event);
+		oprofilefs_create_ulong(dir, "count", &ctr[i].count);
 		/* Dummies.  */
-		oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel);
-		oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user);
-		oprofilefs_create_ulong(sb, dir, "unit_mask", &ctr[i].unit_mask);
+		oprofilefs_create_ulong(dir, "kernel", &ctr[i].kernel);
+		oprofilefs_create_ulong(dir, "user", &ctr[i].user);
+		oprofilefs_create_ulong(dir, "unit_mask", &ctr[i].unit_mask);
 	}
 
 	if (model->can_set_proc_mode) {
-		oprofilefs_create_ulong(sb, root, "enable_pal",
+		oprofilefs_create_ulong(root, "enable_pal",
 					&sys.enable_pal);
-		oprofilefs_create_ulong(sb, root, "enable_kernel",
+		oprofilefs_create_ulong(root, "enable_kernel",
 					&sys.enable_kernel);
-		oprofilefs_create_ulong(sb, root, "enable_user",
+		oprofilefs_create_ulong(root, "enable_user",
 					&sys.enable_user);
 	}
 
diff --git a/arch/avr32/oprofile/op_model_avr32.c b/arch/avr32/oprofile/op_model_avr32.c
index f74b7809e089..08308be2c02c 100644
--- a/arch/avr32/oprofile/op_model_avr32.c
+++ b/arch/avr32/oprofile/op_model_avr32.c
@@ -97,8 +97,7 @@ static irqreturn_t avr32_perf_counter_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int avr32_perf_counter_create_files(struct super_block *sb,
-		struct dentry *root)
+static int avr32_perf_counter_create_files(struct dentry *root)
 {
 	struct dentry *dir;
 	unsigned int i;
@@ -106,21 +105,21 @@ static int avr32_perf_counter_create_files(struct super_block *sb,
 
 	for (i = 0; i < NR_counter; i++) {
 		snprintf(filename, sizeof(filename), "%u", i);
-		dir = oprofilefs_mkdir(sb, root, filename);
+		dir = oprofilefs_mkdir(root, filename);
 
-		oprofilefs_create_ulong(sb, dir, "enabled",
+		oprofilefs_create_ulong(dir, "enabled",
 				&counter[i].enabled);
-		oprofilefs_create_ulong(sb, dir, "event",
+		oprofilefs_create_ulong(dir, "event",
 				&counter[i].event);
-		oprofilefs_create_ulong(sb, dir, "count",
+		oprofilefs_create_ulong(dir, "count",
 				&counter[i].count);
 
 		/* Dummy entries */
-		oprofilefs_create_ulong(sb, dir, "kernel",
+		oprofilefs_create_ulong(dir, "kernel",
 				&counter[i].kernel);
-		oprofilefs_create_ulong(sb, dir, "user",
+		oprofilefs_create_ulong(dir, "user",
 				&counter[i].user);
-		oprofilefs_create_ulong(sb, dir, "unit_mask",
+		oprofilefs_create_ulong(dir, "unit_mask",
 				&counter[i].unit_mask);
 	}
 
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index af763e838fdd..5e5424753b56 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -33,7 +33,7 @@ static int op_mips_setup(void)
 	return 0;
 }
 
-static int op_mips_create_files(struct super_block *sb, struct dentry *root)
+static int op_mips_create_files(struct dentry *root)
 {
 	int i;
 
@@ -42,16 +42,16 @@ static int op_mips_create_files(struct super_block *sb, struct dentry *root)
 		char buf[4];
 
 		snprintf(buf, sizeof buf, "%d", i);
-		dir = oprofilefs_mkdir(sb, root, buf);
-
-		oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled);
-		oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event);
-		oprofilefs_create_ulong(sb, dir, "count", &ctr[i].count);
-		oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel);
-		oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user);
-		oprofilefs_create_ulong(sb, dir, "exl", &ctr[i].exl);
+		dir = oprofilefs_mkdir(root, buf);
+
+		oprofilefs_create_ulong(dir, "enabled", &ctr[i].enabled);
+		oprofilefs_create_ulong(dir, "event", &ctr[i].event);
+		oprofilefs_create_ulong(dir, "count", &ctr[i].count);
+		oprofilefs_create_ulong(dir, "kernel", &ctr[i].kernel);
+		oprofilefs_create_ulong(dir, "user", &ctr[i].user);
+		oprofilefs_create_ulong(dir, "exl", &ctr[i].exl);
 		/* Dummy.  */
-		oprofilefs_create_ulong(sb, dir, "unit_mask", &ctr[i].unit_mask);
+		oprofilefs_create_ulong(dir, "unit_mask", &ctr[i].unit_mask);
 	}
 
 	return 0;
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index f55e14cd1762..07c0106fab76 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -825,39 +825,39 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
 #endif
 #ifdef CONFIG_KVM_MPIC
 	case KVM_CAP_IRQ_MPIC: {
-		struct file *filp;
+		struct fd f;
 		struct kvm_device *dev;
 
 		r = -EBADF;
-		filp = fget(cap->args[0]);
-		if (!filp)
+		f = fdget(cap->args[0]);
+		if (!f.file)
 			break;
 
 		r = -EPERM;
-		dev = kvm_device_from_filp(filp);
+		dev = kvm_device_from_filp(f.file);
 		if (dev)
 			r = kvmppc_mpic_connect_vcpu(dev, vcpu, cap->args[1]);
 
-		fput(filp);
+		fdput(f);
 		break;
 	}
 #endif
 #ifdef CONFIG_KVM_XICS
 	case KVM_CAP_IRQ_XICS: {
-		struct file *filp;
+		struct fd f;
 		struct kvm_device *dev;
 
 		r = -EBADF;
-		filp = fget(cap->args[0]);
-		if (!filp)
+		f = fdget(cap->args[0]);
+		if (!f.file)
 			break;
 
 		r = -EPERM;
-		dev = kvm_device_from_filp(filp);
+		dev = kvm_device_from_filp(f.file);
 		if (dev)
 			r = kvmppc_xics_connect_vcpu(dev, vcpu, cap->args[1]);
 
-		fput(filp);
+		fdput(f);
 		break;
 	}
 #endif /* CONFIG_KVM_XICS */
diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c
index 4f51025f5b00..c77348c5d463 100644
--- a/arch/powerpc/oprofile/common.c
+++ b/arch/powerpc/oprofile/common.c
@@ -119,7 +119,7 @@ static void op_powerpc_stop(void)
                 model->global_stop();
 }
 
-static int op_powerpc_create_files(struct super_block *sb, struct dentry *root)
+static int op_powerpc_create_files(struct dentry *root)
 {
 	int i;
 
@@ -128,9 +128,9 @@ static int op_powerpc_create_files(struct super_block *sb, struct dentry *root)
 	 * There is one mmcr0, mmcr1 and mmcra for setting the events for
 	 * all of the counters.
 	 */
-	oprofilefs_create_ulong(sb, root, "mmcr0", &sys.mmcr0);
-	oprofilefs_create_ulong(sb, root, "mmcr1", &sys.mmcr1);
-	oprofilefs_create_ulong(sb, root, "mmcra", &sys.mmcra);
+	oprofilefs_create_ulong(root, "mmcr0", &sys.mmcr0);
+	oprofilefs_create_ulong(root, "mmcr1", &sys.mmcr1);
+	oprofilefs_create_ulong(root, "mmcra", &sys.mmcra);
 #ifdef CONFIG_OPROFILE_CELL
 	/* create a file the user tool can check to see what level of profiling
 	 * support exits with this kernel. Initialize bit mask to indicate
@@ -142,7 +142,7 @@ static int op_powerpc_create_files(struct super_block *sb, struct dentry *root)
 	 * If the file does not exist, then the kernel only supports SPU
 	 * cycle profiling, PPU event and cycle profiling.
 	 */
-	oprofilefs_create_ulong(sb, root, "cell_support", &sys.cell_support);
+	oprofilefs_create_ulong(root, "cell_support", &sys.cell_support);
 	sys.cell_support = 0x1; /* Note, the user OProfile tool must check
 				 * that this bit is set before attempting to
 				 * user SPU event profiling.  Older kernels
@@ -160,11 +160,11 @@ static int op_powerpc_create_files(struct super_block *sb, struct dentry *root)
 		char buf[4];
 
 		snprintf(buf, sizeof buf, "%d", i);
-		dir = oprofilefs_mkdir(sb, root, buf);
+		dir = oprofilefs_mkdir(root, buf);
 
-		oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled);
-		oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event);
-		oprofilefs_create_ulong(sb, dir, "count", &ctr[i].count);
+		oprofilefs_create_ulong(dir, "enabled", &ctr[i].enabled);
+		oprofilefs_create_ulong(dir, "event", &ctr[i].event);
+		oprofilefs_create_ulong(dir, "count", &ctr[i].count);
 
 		/*
 		 * Classic PowerPC doesn't support per-counter
@@ -173,14 +173,14 @@ static int op_powerpc_create_files(struct super_block *sb, struct dentry *root)
 		 * Book-E style performance monitors, we do
 		 * support them.
 		 */
-		oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel);
-		oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user);
+		oprofilefs_create_ulong(dir, "kernel", &ctr[i].kernel);
+		oprofilefs_create_ulong(dir, "user", &ctr[i].user);
 
-		oprofilefs_create_ulong(sb, dir, "unit_mask", &ctr[i].unit_mask);
+		oprofilefs_create_ulong(dir, "unit_mask", &ctr[i].unit_mask);
 	}
 
-	oprofilefs_create_ulong(sb, root, "enable_kernel", &sys.enable_kernel);
-	oprofilefs_create_ulong(sb, root, "enable_user", &sys.enable_user);
+	oprofilefs_create_ulong(root, "enable_kernel", &sys.enable_kernel);
+	oprofilefs_create_ulong(root, "enable_user", &sys.enable_user);
 
 	/* Default to tracing both kernel and user */
 	sys.enable_kernel = 1;
diff --git a/arch/s390/hypfs/hypfs.h b/arch/s390/hypfs/hypfs.h
index f41e0ef7fdf9..79f2ac55253f 100644
--- a/arch/s390/hypfs/hypfs.h
+++ b/arch/s390/hypfs/hypfs.h
@@ -18,26 +18,23 @@
 #define UPDATE_FILE_MODE 0220
 #define DIR_MODE         0550
 
-extern struct dentry *hypfs_mkdir(struct super_block *sb, struct dentry *parent,
-				  const char *name);
+extern struct dentry *hypfs_mkdir(struct dentry *parent, const char *name);
 
-extern struct dentry *hypfs_create_u64(struct super_block *sb,
-				       struct dentry *dir, const char *name,
+extern struct dentry *hypfs_create_u64(struct dentry *dir, const char *name,
 				       __u64 value);
 
-extern struct dentry *hypfs_create_str(struct super_block *sb,
-				       struct dentry *dir, const char *name,
+extern struct dentry *hypfs_create_str(struct dentry *dir, const char *name,
 				       char *string);
 
 /* LPAR Hypervisor */
 extern int hypfs_diag_init(void);
 extern void hypfs_diag_exit(void);
-extern int hypfs_diag_create_files(struct super_block *sb, struct dentry *root);
+extern int hypfs_diag_create_files(struct dentry *root);
 
 /* VM Hypervisor */
 extern int hypfs_vm_init(void);
 extern void hypfs_vm_exit(void);
-extern int hypfs_vm_create_files(struct super_block *sb, struct dentry *root);
+extern int hypfs_vm_create_files(struct dentry *root);
 
 /* debugfs interface */
 struct hypfs_dbfs_file;
diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c
index 138893e5f736..5eeffeefae06 100644
--- a/arch/s390/hypfs/hypfs_diag.c
+++ b/arch/s390/hypfs/hypfs_diag.c
@@ -623,8 +623,7 @@ void hypfs_diag_exit(void)
  * *******************************************
  */
 
-static int hypfs_create_cpu_files(struct super_block *sb,
-				  struct dentry *cpus_dir, void *cpu_info)
+static int hypfs_create_cpu_files(struct dentry *cpus_dir, void *cpu_info)
 {
 	struct dentry *cpu_dir;
 	char buffer[TMP_SIZE];
@@ -632,30 +631,29 @@ static int hypfs_create_cpu_files(struct super_block *sb,
 
 	snprintf(buffer, TMP_SIZE, "%d", cpu_info__cpu_addr(diag204_info_type,
 							    cpu_info));
-	cpu_dir = hypfs_mkdir(sb, cpus_dir, buffer);
-	rc = hypfs_create_u64(sb, cpu_dir, "mgmtime",
+	cpu_dir = hypfs_mkdir(cpus_dir, buffer);
+	rc = hypfs_create_u64(cpu_dir, "mgmtime",
 			      cpu_info__acc_time(diag204_info_type, cpu_info) -
 			      cpu_info__lp_time(diag204_info_type, cpu_info));
 	if (IS_ERR(rc))
 		return PTR_ERR(rc);
-	rc = hypfs_create_u64(sb, cpu_dir, "cputime",
+	rc = hypfs_create_u64(cpu_dir, "cputime",
 			      cpu_info__lp_time(diag204_info_type, cpu_info));
 	if (IS_ERR(rc))
 		return PTR_ERR(rc);
 	if (diag204_info_type == INFO_EXT) {
-		rc = hypfs_create_u64(sb, cpu_dir, "onlinetime",
+		rc = hypfs_create_u64(cpu_dir, "onlinetime",
 				      cpu_info__online_time(diag204_info_type,
 							    cpu_info));
 		if (IS_ERR(rc))
 			return PTR_ERR(rc);
 	}
 	diag224_idx2name(cpu_info__ctidx(diag204_info_type, cpu_info), buffer);
-	rc = hypfs_create_str(sb, cpu_dir, "type", buffer);
+	rc = hypfs_create_str(cpu_dir, "type", buffer);
 	return PTR_RET(rc);
 }
 
-static void *hypfs_create_lpar_files(struct super_block *sb,
-				     struct dentry *systems_dir, void *part_hdr)
+static void *hypfs_create_lpar_files(struct dentry *systems_dir, void *part_hdr)
 {
 	struct dentry *cpus_dir;
 	struct dentry *lpar_dir;
@@ -665,16 +663,16 @@ static void *hypfs_create_lpar_files(struct super_block *sb,
 
 	part_hdr__part_name(diag204_info_type, part_hdr, lpar_name);
 	lpar_name[LPAR_NAME_LEN] = 0;
-	lpar_dir = hypfs_mkdir(sb, systems_dir, lpar_name);
+	lpar_dir = hypfs_mkdir(systems_dir, lpar_name);
 	if (IS_ERR(lpar_dir))
 		return lpar_dir;
-	cpus_dir = hypfs_mkdir(sb, lpar_dir, "cpus");
+	cpus_dir = hypfs_mkdir(lpar_dir, "cpus");
 	if (IS_ERR(cpus_dir))
 		return cpus_dir;
 	cpu_info = part_hdr + part_hdr__size(diag204_info_type);
 	for (i = 0; i < part_hdr__rcpus(diag204_info_type, part_hdr); i++) {
 		int rc;
-		rc = hypfs_create_cpu_files(sb, cpus_dir, cpu_info);
+		rc = hypfs_create_cpu_files(cpus_dir, cpu_info);
 		if (rc)
 			return ERR_PTR(rc);
 		cpu_info += cpu_info__size(diag204_info_type);
@@ -682,8 +680,7 @@ static void *hypfs_create_lpar_files(struct super_block *sb,
 	return cpu_info;
 }
 
-static int hypfs_create_phys_cpu_files(struct super_block *sb,
-				       struct dentry *cpus_dir, void *cpu_info)
+static int hypfs_create_phys_cpu_files(struct dentry *cpus_dir, void *cpu_info)
 {
 	struct dentry *cpu_dir;
 	char buffer[TMP_SIZE];
@@ -691,32 +688,31 @@ static int hypfs_create_phys_cpu_files(struct super_block *sb,
 
 	snprintf(buffer, TMP_SIZE, "%i", phys_cpu__cpu_addr(diag204_info_type,
 							    cpu_info));
-	cpu_dir = hypfs_mkdir(sb, cpus_dir, buffer);
+	cpu_dir = hypfs_mkdir(cpus_dir, buffer);
 	if (IS_ERR(cpu_dir))
 		return PTR_ERR(cpu_dir);
-	rc = hypfs_create_u64(sb, cpu_dir, "mgmtime",
+	rc = hypfs_create_u64(cpu_dir, "mgmtime",
 			      phys_cpu__mgm_time(diag204_info_type, cpu_info));
 	if (IS_ERR(rc))
 		return PTR_ERR(rc);
 	diag224_idx2name(phys_cpu__ctidx(diag204_info_type, cpu_info), buffer);
-	rc = hypfs_create_str(sb, cpu_dir, "type", buffer);
+	rc = hypfs_create_str(cpu_dir, "type", buffer);
 	return PTR_RET(rc);
 }
 
-static void *hypfs_create_phys_files(struct super_block *sb,
-				     struct dentry *parent_dir, void *phys_hdr)
+static void *hypfs_create_phys_files(struct dentry *parent_dir, void *phys_hdr)
 {
 	int i;
 	void *cpu_info;
 	struct dentry *cpus_dir;
 
-	cpus_dir = hypfs_mkdir(sb, parent_dir, "cpus");
+	cpus_dir = hypfs_mkdir(parent_dir, "cpus");
 	if (IS_ERR(cpus_dir))
 		return cpus_dir;
 	cpu_info = phys_hdr + phys_hdr__size(diag204_info_type);
 	for (i = 0; i < phys_hdr__cpus(diag204_info_type, phys_hdr); i++) {
 		int rc;
-		rc = hypfs_create_phys_cpu_files(sb, cpus_dir, cpu_info);
+		rc = hypfs_create_phys_cpu_files(cpus_dir, cpu_info);
 		if (rc)
 			return ERR_PTR(rc);
 		cpu_info += phys_cpu__size(diag204_info_type);
@@ -724,7 +720,7 @@ static void *hypfs_create_phys_files(struct super_block *sb,
 	return cpu_info;
 }
 
-int hypfs_diag_create_files(struct super_block *sb, struct dentry *root)
+int hypfs_diag_create_files(struct dentry *root)
 {
 	struct dentry *systems_dir, *hyp_dir;
 	void *time_hdr, *part_hdr;
@@ -735,7 +731,7 @@ int hypfs_diag_create_files(struct super_block *sb, struct dentry *root)
 	if (IS_ERR(buffer))
 		return PTR_ERR(buffer);
 
-	systems_dir = hypfs_mkdir(sb, root, "systems");
+	systems_dir = hypfs_mkdir(root, "systems");
 	if (IS_ERR(systems_dir)) {
 		rc = PTR_ERR(systems_dir);
 		goto err_out;
@@ -743,25 +739,25 @@ int hypfs_diag_create_files(struct super_block *sb, struct dentry *root)
 	time_hdr = (struct x_info_blk_hdr *)buffer;
 	part_hdr = time_hdr + info_blk_hdr__size(diag204_info_type);
 	for (i = 0; i < info_blk_hdr__npar(diag204_info_type, time_hdr); i++) {
-		part_hdr = hypfs_create_lpar_files(sb, systems_dir, part_hdr);
+		part_hdr = hypfs_create_lpar_files(systems_dir, part_hdr);
 		if (IS_ERR(part_hdr)) {
 			rc = PTR_ERR(part_hdr);
 			goto err_out;
 		}
 	}
 	if (info_blk_hdr__flags(diag204_info_type, time_hdr) & LPAR_PHYS_FLG) {
-		ptr = hypfs_create_phys_files(sb, root, part_hdr);
+		ptr = hypfs_create_phys_files(root, part_hdr);
 		if (IS_ERR(ptr)) {
 			rc = PTR_ERR(ptr);
 			goto err_out;
 		}
 	}
-	hyp_dir = hypfs_mkdir(sb, root, "hyp");
+	hyp_dir = hypfs_mkdir(root, "hyp");
 	if (IS_ERR(hyp_dir)) {
 		rc = PTR_ERR(hyp_dir);
 		goto err_out;
 	}
-	ptr = hypfs_create_str(sb, hyp_dir, "type", "LPAR Hypervisor");
+	ptr = hypfs_create_str(hyp_dir, "type", "LPAR Hypervisor");
 	if (IS_ERR(ptr)) {
 		rc = PTR_ERR(ptr);
 		goto err_out;
diff --git a/arch/s390/hypfs/hypfs_vm.c b/arch/s390/hypfs/hypfs_vm.c
index f364dcf77e8e..24908ce149f1 100644
--- a/arch/s390/hypfs/hypfs_vm.c
+++ b/arch/s390/hypfs/hypfs_vm.c
@@ -107,16 +107,15 @@ static void diag2fc_free(const void *data)
 	vfree(data);
 }
 
-#define ATTRIBUTE(sb, dir, name, member) \
+#define ATTRIBUTE(dir, name, member) \
 do { \
 	void *rc; \
-	rc = hypfs_create_u64(sb, dir, name, member); \
+	rc = hypfs_create_u64(dir, name, member); \
 	if (IS_ERR(rc)) \
 		return PTR_ERR(rc); \
 } while(0)
 
-static int hpyfs_vm_create_guest(struct super_block *sb,
-				 struct dentry *systems_dir,
+static int hpyfs_vm_create_guest(struct dentry *systems_dir,
 				 struct diag2fc_data *data)
 {
 	char guest_name[NAME_LEN + 1] = {};
@@ -130,46 +129,46 @@ static int hpyfs_vm_create_guest(struct super_block *sb,
 	memcpy(guest_name, data->guest_name, NAME_LEN);
 	EBCASC(guest_name, NAME_LEN);
 	strim(guest_name);
-	guest_dir = hypfs_mkdir(sb, systems_dir, guest_name);
+	guest_dir = hypfs_mkdir(systems_dir, guest_name);
 	if (IS_ERR(guest_dir))
 		return PTR_ERR(guest_dir);
-	ATTRIBUTE(sb, guest_dir, "onlinetime_us", data->el_time);
+	ATTRIBUTE(guest_dir, "onlinetime_us", data->el_time);
 
 	/* logical cpu information */
-	cpus_dir = hypfs_mkdir(sb, guest_dir, "cpus");
+	cpus_dir = hypfs_mkdir(guest_dir, "cpus");
 	if (IS_ERR(cpus_dir))
 		return PTR_ERR(cpus_dir);
-	ATTRIBUTE(sb, cpus_dir, "cputime_us", data->used_cpu);
-	ATTRIBUTE(sb, cpus_dir, "capped", capped_value);
-	ATTRIBUTE(sb, cpus_dir, "dedicated", dedicated_flag);
-	ATTRIBUTE(sb, cpus_dir, "count", data->vcpus);
-	ATTRIBUTE(sb, cpus_dir, "weight_min", data->cpu_min);
-	ATTRIBUTE(sb, cpus_dir, "weight_max", data->cpu_max);
-	ATTRIBUTE(sb, cpus_dir, "weight_cur", data->cpu_shares);
+	ATTRIBUTE(cpus_dir, "cputime_us", data->used_cpu);
+	ATTRIBUTE(cpus_dir, "capped", capped_value);
+	ATTRIBUTE(cpus_dir, "dedicated", dedicated_flag);
+	ATTRIBUTE(cpus_dir, "count", data->vcpus);
+	ATTRIBUTE(cpus_dir, "weight_min", data->cpu_min);
+	ATTRIBUTE(cpus_dir, "weight_max", data->cpu_max);
+	ATTRIBUTE(cpus_dir, "weight_cur", data->cpu_shares);
 
 	/* memory information */
-	mem_dir = hypfs_mkdir(sb, guest_dir, "mem");
+	mem_dir = hypfs_mkdir(guest_dir, "mem");
 	if (IS_ERR(mem_dir))
 		return PTR_ERR(mem_dir);
-	ATTRIBUTE(sb, mem_dir, "min_KiB", data->mem_min_kb);
-	ATTRIBUTE(sb, mem_dir, "max_KiB", data->mem_max_kb);
-	ATTRIBUTE(sb, mem_dir, "used_KiB", data->mem_used_kb);
-	ATTRIBUTE(sb, mem_dir, "share_KiB", data->mem_share_kb);
+	ATTRIBUTE(mem_dir, "min_KiB", data->mem_min_kb);
+	ATTRIBUTE(mem_dir, "max_KiB", data->mem_max_kb);
+	ATTRIBUTE(mem_dir, "used_KiB", data->mem_used_kb);
+	ATTRIBUTE(mem_dir, "share_KiB", data->mem_share_kb);
 
 	/* samples */
-	samples_dir = hypfs_mkdir(sb, guest_dir, "samples");
+	samples_dir = hypfs_mkdir(guest_dir, "samples");
 	if (IS_ERR(samples_dir))
 		return PTR_ERR(samples_dir);
-	ATTRIBUTE(sb, samples_dir, "cpu_using", data->cpu_use_samp);
-	ATTRIBUTE(sb, samples_dir, "cpu_delay", data->cpu_delay_samp);
-	ATTRIBUTE(sb, samples_dir, "mem_delay", data->page_wait_samp);
-	ATTRIBUTE(sb, samples_dir, "idle", data->idle_samp);
-	ATTRIBUTE(sb, samples_dir, "other", data->other_samp);
-	ATTRIBUTE(sb, samples_dir, "total", data->total_samp);
+	ATTRIBUTE(samples_dir, "cpu_using", data->cpu_use_samp);
+	ATTRIBUTE(samples_dir, "cpu_delay", data->cpu_delay_samp);
+	ATTRIBUTE(samples_dir, "mem_delay", data->page_wait_samp);
+	ATTRIBUTE(samples_dir, "idle", data->idle_samp);
+	ATTRIBUTE(samples_dir, "other", data->other_samp);
+	ATTRIBUTE(samples_dir, "total", data->total_samp);
 	return 0;
 }
 
-int hypfs_vm_create_files(struct super_block *sb, struct dentry *root)
+int hypfs_vm_create_files(struct dentry *root)
 {
 	struct dentry *dir, *file;
 	struct diag2fc_data *data;
@@ -181,38 +180,38 @@ int hypfs_vm_create_files(struct super_block *sb, struct dentry *root)
 		return PTR_ERR(data);
 
 	/* Hpervisor Info */
-	dir = hypfs_mkdir(sb, root, "hyp");
+	dir = hypfs_mkdir(root, "hyp");
 	if (IS_ERR(dir)) {
 		rc = PTR_ERR(dir);
 		goto failed;
 	}
-	file = hypfs_create_str(sb, dir, "type", "z/VM Hypervisor");
+	file = hypfs_create_str(dir, "type", "z/VM Hypervisor");
 	if (IS_ERR(file)) {
 		rc = PTR_ERR(file);
 		goto failed;
 	}
 
 	/* physical cpus */
-	dir = hypfs_mkdir(sb, root, "cpus");
+	dir = hypfs_mkdir(root, "cpus");
 	if (IS_ERR(dir)) {
 		rc = PTR_ERR(dir);
 		goto failed;
 	}
-	file = hypfs_create_u64(sb, dir, "count", data->lcpus);
+	file = hypfs_create_u64(dir, "count", data->lcpus);
 	if (IS_ERR(file)) {
 		rc = PTR_ERR(file);
 		goto failed;
 	}
 
 	/* guests */
-	dir = hypfs_mkdir(sb, root, "systems");
+	dir = hypfs_mkdir(root, "systems");
 	if (IS_ERR(dir)) {
 		rc = PTR_ERR(dir);
 		goto failed;
 	}
 
 	for (i = 0; i < count; i++) {
-		rc = hpyfs_vm_create_guest(sb, dir, &(data[i]));
+		rc = hpyfs_vm_create_guest(dir, &(data[i]));
 		if (rc)
 			goto failed;
 	}
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 7a539f4f5e30..ddfe09b45134 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -28,8 +28,7 @@
 #define HYPFS_MAGIC 0x687970	/* ASCII 'hyp' */
 #define TMP_SIZE 64		/* size of temporary buffers */
 
-static struct dentry *hypfs_create_update_file(struct super_block *sb,
-					       struct dentry *dir);
+static struct dentry *hypfs_create_update_file(struct dentry *dir);
 
 struct hypfs_sb_info {
 	kuid_t uid;			/* uid used for files and dirs */
@@ -193,9 +192,9 @@ static ssize_t hypfs_aio_write(struct kiocb *iocb, const struct iovec *iov,
 	}
 	hypfs_delete_tree(sb->s_root);
 	if (MACHINE_IS_VM)
-		rc = hypfs_vm_create_files(sb, sb->s_root);
+		rc = hypfs_vm_create_files(sb->s_root);
 	else
-		rc = hypfs_diag_create_files(sb, sb->s_root);
+		rc = hypfs_diag_create_files(sb->s_root);
 	if (rc) {
 		pr_err("Updating the hypfs tree failed\n");
 		hypfs_delete_tree(sb->s_root);
@@ -302,12 +301,12 @@ static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
 	if (!root_dentry)
 		return -ENOMEM;
 	if (MACHINE_IS_VM)
-		rc = hypfs_vm_create_files(sb, root_dentry);
+		rc = hypfs_vm_create_files(root_dentry);
 	else
-		rc = hypfs_diag_create_files(sb, root_dentry);
+		rc = hypfs_diag_create_files(root_dentry);
 	if (rc)
 		return rc;
-	sbi->update_file = hypfs_create_update_file(sb, root_dentry);
+	sbi->update_file = hypfs_create_update_file(root_dentry);
 	if (IS_ERR(sbi->update_file))
 		return PTR_ERR(sbi->update_file);
 	hypfs_update_update(sb);
@@ -334,8 +333,7 @@ static void hypfs_kill_super(struct super_block *sb)
 	kill_litter_super(sb);
 }
 
-static struct dentry *hypfs_create_file(struct super_block *sb,
-					struct dentry *parent, const char *name,
+static struct dentry *hypfs_create_file(struct dentry *parent, const char *name,
 					char *data, umode_t mode)
 {
 	struct dentry *dentry;
@@ -347,7 +345,7 @@ static struct dentry *hypfs_create_file(struct super_block *sb,
 		dentry = ERR_PTR(-ENOMEM);
 		goto fail;
 	}
-	inode = hypfs_make_inode(sb, mode);
+	inode = hypfs_make_inode(parent->d_sb, mode);
 	if (!inode) {
 		dput(dentry);
 		dentry = ERR_PTR(-ENOMEM);
@@ -373,24 +371,22 @@ fail:
 	return dentry;
 }
 
-struct dentry *hypfs_mkdir(struct super_block *sb, struct dentry *parent,
-			   const char *name)
+struct dentry *hypfs_mkdir(struct dentry *parent, const char *name)
 {
 	struct dentry *dentry;
 
-	dentry = hypfs_create_file(sb, parent, name, NULL, S_IFDIR | DIR_MODE);
+	dentry = hypfs_create_file(parent, name, NULL, S_IFDIR | DIR_MODE);
 	if (IS_ERR(dentry))
 		return dentry;
 	hypfs_add_dentry(dentry);
 	return dentry;
 }
 
-static struct dentry *hypfs_create_update_file(struct super_block *sb,
-					       struct dentry *dir)
+static struct dentry *hypfs_create_update_file(struct dentry *dir)
 {
 	struct dentry *dentry;
 
-	dentry = hypfs_create_file(sb, dir, "update", NULL,
+	dentry = hypfs_create_file(dir, "update", NULL,
 				   S_IFREG | UPDATE_FILE_MODE);
 	/*
 	 * We do not put the update file on the 'delete' list with
@@ -400,7 +396,7 @@ static struct dentry *hypfs_create_update_file(struct super_block *sb,
 	return dentry;
 }
 
-struct dentry *hypfs_create_u64(struct super_block *sb, struct dentry *dir,
+struct dentry *hypfs_create_u64(struct dentry *dir,
 				const char *name, __u64 value)
 {
 	char *buffer;
@@ -412,7 +408,7 @@ struct dentry *hypfs_create_u64(struct super_block *sb, struct dentry *dir,
 	if (!buffer)
 		return ERR_PTR(-ENOMEM);
 	dentry =
-	    hypfs_create_file(sb, dir, name, buffer, S_IFREG | REG_FILE_MODE);
+	    hypfs_create_file(dir, name, buffer, S_IFREG | REG_FILE_MODE);
 	if (IS_ERR(dentry)) {
 		kfree(buffer);
 		return ERR_PTR(-ENOMEM);
@@ -421,7 +417,7 @@ struct dentry *hypfs_create_u64(struct super_block *sb, struct dentry *dir,
 	return dentry;
 }
 
-struct dentry *hypfs_create_str(struct super_block *sb, struct dentry *dir,
+struct dentry *hypfs_create_str(struct dentry *dir,
 				const char *name, char *string)
 {
 	char *buffer;
@@ -432,7 +428,7 @@ struct dentry *hypfs_create_str(struct super_block *sb, struct dentry *dir,
 		return ERR_PTR(-ENOMEM);
 	sprintf(buffer, "%s\n", string);
 	dentry =
-	    hypfs_create_file(sb, dir, name, buffer, S_IFREG | REG_FILE_MODE);
+	    hypfs_create_file(dir, name, buffer, S_IFREG | REG_FILE_MODE);
 	if (IS_ERR(dentry)) {
 		kfree(buffer);
 		return ERR_PTR(-ENOMEM);
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index 930783d2c99b..04e1b6a85362 100644
--- a/arch/s390/oprofile/init.c
+++ b/arch/s390/oprofile/init.c
@@ -346,16 +346,15 @@ static const struct file_operations timer_enabled_fops = {
 };
 
 
-static int oprofile_create_hwsampling_files(struct super_block *sb,
-					    struct dentry *root)
+static int oprofile_create_hwsampling_files(struct dentry *root)
 {
 	struct dentry *dir;
 
-	dir = oprofilefs_mkdir(sb, root, "timer");
+	dir = oprofilefs_mkdir(root, "timer");
 	if (!dir)
 		return -EINVAL;
 
-	oprofilefs_create_file(sb, dir, "enabled", &timer_enabled_fops);
+	oprofilefs_create_file(dir, "enabled", &timer_enabled_fops);
 
 	if (!hwsampler_available)
 		return 0;
@@ -376,17 +375,17 @@ static int oprofile_create_hwsampling_files(struct super_block *sb,
 		 * and can only be set to 0.
 		 */
 
-		dir = oprofilefs_mkdir(sb, root, "0");
+		dir = oprofilefs_mkdir(root, "0");
 		if (!dir)
 			return -EINVAL;
 
-		oprofilefs_create_file(sb, dir, "enabled", &hwsampler_fops);
-		oprofilefs_create_file(sb, dir, "event", &zero_fops);
-		oprofilefs_create_file(sb, dir, "count", &hw_interval_fops);
-		oprofilefs_create_file(sb, dir, "unit_mask", &zero_fops);
-		oprofilefs_create_file(sb, dir, "kernel", &kernel_fops);
-		oprofilefs_create_file(sb, dir, "user", &user_fops);
-		oprofilefs_create_ulong(sb, dir, "hw_sdbt_blocks",
+		oprofilefs_create_file(dir, "enabled", &hwsampler_fops);
+		oprofilefs_create_file(dir, "event", &zero_fops);
+		oprofilefs_create_file(dir, "count", &hw_interval_fops);
+		oprofilefs_create_file(dir, "unit_mask", &zero_fops);
+		oprofilefs_create_file(dir, "kernel", &kernel_fops);
+		oprofilefs_create_file(dir, "user", &user_fops);
+		oprofilefs_create_ulong(dir, "hw_sdbt_blocks",
 					&oprofile_sdbt_blocks);
 
 	} else {
@@ -396,19 +395,19 @@ static int oprofile_create_hwsampling_files(struct super_block *sb,
 		 * space tools.  The /dev/oprofile/hwsampling fs is
 		 * provided in that case.
 		 */
-		dir = oprofilefs_mkdir(sb, root, "hwsampling");
+		dir = oprofilefs_mkdir(root, "hwsampling");
 		if (!dir)
 			return -EINVAL;
 
-		oprofilefs_create_file(sb, dir, "hwsampler",
+		oprofilefs_create_file(dir, "hwsampler",
 				       &hwsampler_fops);
-		oprofilefs_create_file(sb, dir, "hw_interval",
+		oprofilefs_create_file(dir, "hw_interval",
 				       &hw_interval_fops);
-		oprofilefs_create_ro_ulong(sb, dir, "hw_min_interval",
+		oprofilefs_create_ro_ulong(dir, "hw_min_interval",
 					   &oprofile_min_interval);
-		oprofilefs_create_ro_ulong(sb, dir, "hw_max_interval",
+		oprofilefs_create_ro_ulong(dir, "hw_max_interval",
 					   &oprofile_max_interval);
-		oprofilefs_create_ulong(sb, dir, "hw_sdbt_blocks",
+		oprofilefs_create_ulong(dir, "hw_sdbt_blocks",
 					&oprofile_sdbt_blocks);
 	}
 	return 0;
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 48768df2471a..6890d8498e0b 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -403,7 +403,7 @@ static void nmi_cpu_down(void *dummy)
 		nmi_cpu_shutdown(dummy);
 }
 
-static int nmi_create_files(struct super_block *sb, struct dentry *root)
+static int nmi_create_files(struct dentry *root)
 {
 	unsigned int i;
 
@@ -420,14 +420,14 @@ static int nmi_create_files(struct super_block *sb, struct dentry *root)
 			continue;
 
 		snprintf(buf,  sizeof(buf), "%d", i);
-		dir = oprofilefs_mkdir(sb, root, buf);
-		oprofilefs_create_ulong(sb, dir, "enabled", &counter_config[i].enabled);
-		oprofilefs_create_ulong(sb, dir, "event", &counter_config[i].event);
-		oprofilefs_create_ulong(sb, dir, "count", &counter_config[i].count);
-		oprofilefs_create_ulong(sb, dir, "unit_mask", &counter_config[i].unit_mask);
-		oprofilefs_create_ulong(sb, dir, "kernel", &counter_config[i].kernel);
-		oprofilefs_create_ulong(sb, dir, "user", &counter_config[i].user);
-		oprofilefs_create_ulong(sb, dir, "extra", &counter_config[i].extra);
+		dir = oprofilefs_mkdir(root, buf);
+		oprofilefs_create_ulong(dir, "enabled", &counter_config[i].enabled);
+		oprofilefs_create_ulong(dir, "event", &counter_config[i].event);
+		oprofilefs_create_ulong(dir, "count", &counter_config[i].count);
+		oprofilefs_create_ulong(dir, "unit_mask", &counter_config[i].unit_mask);
+		oprofilefs_create_ulong(dir, "kernel", &counter_config[i].kernel);
+		oprofilefs_create_ulong(dir, "user", &counter_config[i].user);
+		oprofilefs_create_ulong(dir, "extra", &counter_config[i].extra);
 	}
 
 	return 0;
diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
index b2b94438ff05..50d86c0e9ba4 100644
--- a/arch/x86/oprofile/op_model_amd.c
+++ b/arch/x86/oprofile/op_model_amd.c
@@ -454,16 +454,16 @@ static void init_ibs(void)
 	printk(KERN_INFO "oprofile: AMD IBS detected (0x%08x)\n", ibs_caps);
 }
 
-static int (*create_arch_files)(struct super_block *sb, struct dentry *root);
+static int (*create_arch_files)(struct dentry *root);
 
-static int setup_ibs_files(struct super_block *sb, struct dentry *root)
+static int setup_ibs_files(struct dentry *root)
 {
 	struct dentry *dir;
 	int ret = 0;
 
 	/* architecture specific files */
 	if (create_arch_files)
-		ret = create_arch_files(sb, root);
+		ret = create_arch_files(root);
 
 	if (ret)
 		return ret;
@@ -479,26 +479,26 @@ static int setup_ibs_files(struct super_block *sb, struct dentry *root)
 	ibs_config.max_cnt_op = 250000;
 
 	if (ibs_caps & IBS_CAPS_FETCHSAM) {
-		dir = oprofilefs_mkdir(sb, root, "ibs_fetch");
-		oprofilefs_create_ulong(sb, dir, "enable",
+		dir = oprofilefs_mkdir(root, "ibs_fetch");
+		oprofilefs_create_ulong(dir, "enable",
 					&ibs_config.fetch_enabled);
-		oprofilefs_create_ulong(sb, dir, "max_count",
+		oprofilefs_create_ulong(dir, "max_count",
 					&ibs_config.max_cnt_fetch);
-		oprofilefs_create_ulong(sb, dir, "rand_enable",
+		oprofilefs_create_ulong(dir, "rand_enable",
 					&ibs_config.rand_en);
 	}
 
 	if (ibs_caps & IBS_CAPS_OPSAM) {
-		dir = oprofilefs_mkdir(sb, root, "ibs_op");
-		oprofilefs_create_ulong(sb, dir, "enable",
+		dir = oprofilefs_mkdir(root, "ibs_op");
+		oprofilefs_create_ulong(dir, "enable",
 					&ibs_config.op_enabled);
-		oprofilefs_create_ulong(sb, dir, "max_count",
+		oprofilefs_create_ulong(dir, "max_count",
 					&ibs_config.max_cnt_op);
 		if (ibs_caps & IBS_CAPS_OPCNT)
-			oprofilefs_create_ulong(sb, dir, "dispatched_ops",
+			oprofilefs_create_ulong(dir, "dispatched_ops",
 						&ibs_config.dispatched_ops);
 		if (ibs_caps & IBS_CAPS_BRNTRGT)
-			oprofilefs_create_ulong(sb, dir, "branch_target",
+			oprofilefs_create_ulong(dir, "branch_target",
 						&ibs_config.branch_target);
 	}