From 2a5e5beb88c5391303be435c5c3687034e60c1d6 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Wed, 10 Oct 2012 15:25:28 -0400
Subject: [PATCH] vfs: define struct filename and have getname() return it

getname() is intended to copy pathname strings from userspace into a
kernel buffer. The result is just a string in kernel space. It would
however be quite helpful to be able to attach some ancillary info to
the string.

For instance, we could attach some audit-related info to reduce the
amount of audit-related processing needed. When auditing is enabled,
we could also call getname() on the string more than once and not
need to recopy it from userspace.

This patchset converts the getname()/putname() interfaces to return
a struct instead of a string. For now, the struct just tracks the
string in kernel space and the original userland pointer for it.

Later, we'll add other information to the struct as it becomes
convenient.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/alpha/kernel/osf_sys.c             |  16 ++--
 arch/arm64/kernel/sys.c                 |   4 +-
 arch/arm64/kernel/sys_compat.c          |   6 +-
 arch/avr32/kernel/process.c             |   4 +-
 arch/blackfin/kernel/process.c          |   4 +-
 arch/c6x/kernel/process.c               |   4 +-
 arch/cris/arch-v10/kernel/process.c     |   4 +-
 arch/cris/arch-v32/kernel/process.c     |   4 +-
 arch/frv/kernel/process.c               |   4 +-
 arch/h8300/kernel/process.c             |   4 +-
 arch/hexagon/kernel/syscall.c           |   4 +-
 arch/ia64/kernel/process.c              |   4 +-
 arch/m32r/kernel/process.c              |   4 +-
 arch/m68k/kernel/process.c              |   4 +-
 arch/microblaze/kernel/sys_microblaze.c |   4 +-
 arch/mips/kernel/linux32.c              |   4 +-
 arch/mips/kernel/syscall.c              |   4 +-
 arch/mn10300/kernel/process.c           |   4 +-
 arch/openrisc/kernel/process.c          |   4 +-
 arch/parisc/hpux/fs.c                   |   4 +-
 arch/parisc/kernel/process.c            |   4 +-
 arch/parisc/kernel/sys_parisc32.c       |   4 +-
 arch/powerpc/kernel/process.c           |   4 +-
 arch/powerpc/kernel/sys_ppc32.c         |   5 +-
 arch/score/kernel/sys_score.c           |   4 +-
 arch/sh/kernel/process_32.c             |   4 +-
 arch/sh/kernel/process_64.c             |   4 +-
 arch/sparc/kernel/process_32.c          |   4 +-
 arch/sparc/kernel/process_64.c          |   4 +-
 arch/sparc/kernel/sys_sparc32.c         |   4 +-
 arch/tile/kernel/process.c              |   8 +-
 arch/unicore32/kernel/sys.c             |   4 +-
 arch/xtensa/kernel/process.c            |   4 +-
 fs/compat.c                             |  12 +--
 fs/exec.c                               |  13 +--
 fs/filesystems.c                        |   4 +-
 fs/namei.c                              | 108 +++++++++++++++---------
 fs/namespace.c                          |   4 +-
 fs/open.c                               |   4 +-
 fs/quota/quota.c                        |   4 +-
 include/linux/audit.h                   |  12 +--
 include/linux/fs.h                      |  14 ++-
 ipc/mqueue.c                            |  13 +--
 kernel/acct.c                           |   4 +-
 kernel/auditsc.c                        |  64 +++++++-------
 mm/swapfile.c                           |  11 ++-
 46 files changed, 231 insertions(+), 187 deletions(-)

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 63e77e3944ce..9eb090582cf1 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -449,7 +449,7 @@ osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
 {
 	int retval;
 	struct cdfs_args tmp;
-	char *devname;
+	struct filename *devname;
 
 	retval = -EFAULT;
 	if (copy_from_user(&tmp, args, sizeof(tmp)))
@@ -458,7 +458,7 @@ osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
 	retval = PTR_ERR(devname);
 	if (IS_ERR(devname))
 		goto out;
-	retval = do_mount(devname, dirname, "ext2", flags, NULL);
+	retval = do_mount(devname->name, dirname, "ext2", flags, NULL);
 	putname(devname);
  out:
 	return retval;
@@ -469,7 +469,7 @@ osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
 {
 	int retval;
 	struct cdfs_args tmp;
-	char *devname;
+	struct filename *devname;
 
 	retval = -EFAULT;
 	if (copy_from_user(&tmp, args, sizeof(tmp)))
@@ -478,7 +478,7 @@ osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
 	retval = PTR_ERR(devname);
 	if (IS_ERR(devname))
 		goto out;
-	retval = do_mount(devname, dirname, "iso9660", flags, NULL);
+	retval = do_mount(devname->name, dirname, "iso9660", flags, NULL);
 	putname(devname);
  out:
 	return retval;
@@ -499,7 +499,7 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path,
 		int, flag, void __user *, data)
 {
 	int retval;
-	char *name;
+	struct filename *name;
 
 	name = getname(path);
 	retval = PTR_ERR(name);
@@ -507,13 +507,13 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path,
 		goto out;
 	switch (typenr) {
 	case 1:
-		retval = osf_ufs_mount(name, data, flag);
+		retval = osf_ufs_mount(name->name, data, flag);
 		break;
 	case 6:
-		retval = osf_cdfs_mount(name, data, flag);
+		retval = osf_cdfs_mount(name->name, data, flag);
 		break;
 	case 9:
-		retval = osf_procfs_mount(name, data, flag);
+		retval = osf_procfs_mount(name->name, data, flag);
 		break;
 	default:
 		retval = -EINVAL;
diff --git a/arch/arm64/kernel/sys.c b/arch/arm64/kernel/sys.c
index 905fcfb0ddd0..b120df37de35 100644
--- a/arch/arm64/kernel/sys.c
+++ b/arch/arm64/kernel/sys.c
@@ -50,13 +50,13 @@ asmlinkage long sys_execve(const char __user *filenamei,
 			   struct pt_regs *regs)
 {
 	long error;
-	char * filename;
+	struct filename *filename;
 
 	filename = getname(filenamei);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = do_execve(filename, argv, envp, regs);
+	error = do_execve(filename->name, argv, envp, regs);
 	putname(filename);
 out:
 	return error;
diff --git a/arch/arm64/kernel/sys_compat.c b/arch/arm64/kernel/sys_compat.c
index 93f10e27dc79..e521087cb0c4 100644
--- a/arch/arm64/kernel/sys_compat.c
+++ b/arch/arm64/kernel/sys_compat.c
@@ -56,14 +56,14 @@ asmlinkage int compat_sys_execve(const char __user *filenamei,
 				 struct pt_regs *regs)
 {
 	int error;
-	char * filename;
+	struct filename *filename;
 
 	filename = getname(filenamei);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = compat_do_execve(filename, compat_ptr(argv), compat_ptr(envp),
-				 regs);
+	error = compat_do_execve(filename->name, compat_ptr(argv),
+					compat_ptr(envp), regs);
 	putname(filename);
 out:
 	return error;
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 92c5af98a6f7..1bb0a8abd79b 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -388,14 +388,14 @@ asmlinkage int sys_execve(const char __user *ufilename,
 			  struct pt_regs *regs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname(ufilename);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
 
-	error = do_execve(filename, uargv, uenvp, regs);
+	error = do_execve(filename->name, uargv, uenvp, regs);
 	putname(filename);
 
 out:
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 62bcea7dcc6d..bb1cc721fcf7 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -213,14 +213,14 @@ asmlinkage int sys_execve(const char __user *name,
 			  const char __user *const __user *envp)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 	struct pt_regs *regs = (struct pt_regs *)((&name) + 6);
 
 	filename = getname(name);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		return error;
-	error = do_execve(filename, argv, envp, regs);
+	error = do_execve(filename->name, argv, envp, regs);
 	putname(filename);
 	return error;
 }
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 45e924a636a0..0291325c4e8e 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -230,14 +230,14 @@ SYSCALL_DEFINE4(c6x_execve, const char __user *, name,
 		struct pt_regs *, regs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname(name);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
 
-	error = do_execve(filename, argv, envp, regs);
+	error = do_execve(filename->name, argv, envp, regs);
 	putname(filename);
 out:
 	return error;
diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c
index bee8df43c201..15ac7150371f 100644
--- a/arch/cris/arch-v10/kernel/process.c
+++ b/arch/cris/arch-v10/kernel/process.c
@@ -212,14 +212,14 @@ asmlinkage int sys_execve(const char *fname,
 			  struct pt_regs *regs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname(fname);
 	error = PTR_ERR(filename);
 
 	if (IS_ERR(filename))
 	        goto out;
-	error = do_execve(filename, argv, envp, regs);
+	error = do_execve(filename->name, argv, envp, regs);
 	putname(filename);
  out:
 	return error;
diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c
index 0570e8ce603d..4e9992246359 100644
--- a/arch/cris/arch-v32/kernel/process.c
+++ b/arch/cris/arch-v32/kernel/process.c
@@ -224,7 +224,7 @@ sys_execve(const char *fname,
 	   struct pt_regs *regs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname(fname);
 	error = PTR_ERR(filename);
@@ -232,7 +232,7 @@ sys_execve(const char *fname,
 	if (IS_ERR(filename))
 	        goto out;
 
-	error = do_execve(filename, argv, envp, regs);
+	error = do_execve(filename->name, argv, envp, regs);
 	putname(filename);
  out:
 	return error;
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index 2eb7fa5bf9d8..b496f5bd4096 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -226,13 +226,13 @@ asmlinkage int sys_execve(const char __user *name,
 			  const char __user *const __user *envp)
 {
 	int error;
-	char * filename;
+	struct filename *filename;
 
 	filename = getname(name);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		return error;
-	error = do_execve(filename, argv, envp, __frame);
+	error = do_execve(filename->name, argv, envp, __frame);
 	putname(filename);
 	return error;
 }
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index f153ed1a4c08..e8dc1393a13a 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -217,14 +217,14 @@ asmlinkage int sys_execve(const char *name,
 			  int dummy, ...)
 {
 	int error;
-	char * filename;
+	struct filename *filename;
 	struct pt_regs *regs = (struct pt_regs *) ((unsigned char *)&dummy-4);
 
 	filename = getname(name);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		return error;
-	error = do_execve(filename, argv, envp, regs);
+	error = do_execve(filename->name, argv, envp, regs);
 	putname(filename);
 	return error;
 }
diff --git a/arch/hexagon/kernel/syscall.c b/arch/hexagon/kernel/syscall.c
index 553cd60ee659..25a9bfe3445d 100644
--- a/arch/hexagon/kernel/syscall.c
+++ b/arch/hexagon/kernel/syscall.c
@@ -40,7 +40,7 @@ asmlinkage int sys_execve(char __user *ufilename,
 			  const char __user *const __user *envp)
 {
 	struct pt_regs *pregs = current_thread_info()->regs;
-	char *filename;
+	struct filename *filename;
 	int retval;
 
 	filename = getname(ufilename);
@@ -48,7 +48,7 @@ asmlinkage int sys_execve(char __user *ufilename,
 	if (IS_ERR(filename))
 		return retval;
 
-	retval = do_execve(filename, argv, envp, pregs);
+	retval = do_execve(filename->name, argv, envp, pregs);
 	putname(filename);
 
 	return retval;
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index ee31fe9b310e..35e106f2ed13 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -614,14 +614,14 @@ sys_execve (const char __user *filename,
 	    const char __user *const __user *envp,
 	    struct pt_regs *regs)
 {
-	char *fname;
+	struct filename *fname;
 	int error;
 
 	fname = getname(filename);
 	error = PTR_ERR(fname);
 	if (IS_ERR(fname))
 		goto out;
-	error = do_execve(fname, argv, envp, regs);
+	error = do_execve(fname->name, argv, envp, regs);
 	putname(fname);
 out:
 	return error;
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index 384e63f3a4c4..e7366276ef30 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -296,14 +296,14 @@ asmlinkage int sys_execve(const char __user *ufilename,
 			  unsigned long r6, struct pt_regs regs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname(ufilename);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
 
-	error = do_execve(filename, uargv, uenvp, &regs);
+	error = do_execve(filename->name, uargv, uenvp, &regs);
 	putname(filename);
 out:
 	return error;
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index ac2892e49c7c..b5408d3035aa 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -345,14 +345,14 @@ asmlinkage int sys_execve(const char __user *name,
 			  const char __user *const __user *envp)
 {
 	int error;
-	char * filename;
+	struct filename *filename;
 	struct pt_regs *regs = (struct pt_regs *) &name;
 
 	filename = getname(name);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		return error;
-	error = do_execve(filename, argv, envp, regs);
+	error = do_execve(filename->name, argv, envp, regs);
 	putname(filename);
 	return error;
 }
diff --git a/arch/microblaze/kernel/sys_microblaze.c b/arch/microblaze/kernel/sys_microblaze.c
index e5b154f24f85..404c0f24bd41 100644
--- a/arch/microblaze/kernel/sys_microblaze.c
+++ b/arch/microblaze/kernel/sys_microblaze.c
@@ -54,13 +54,13 @@ asmlinkage long microblaze_execve(const char __user *filenamei,
 				  struct pt_regs *regs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname(filenamei);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = do_execve(filename, argv, envp, regs);
+	error = do_execve(filename->name, argv, envp, regs);
 	putname(filename);
 out:
 	return error;
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 922a554cd108..3a21acedf882 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -83,13 +83,13 @@ out:
 asmlinkage int sys32_execve(nabi_no_regargs struct pt_regs regs)
 {
 	int error;
-	char * filename;
+	struct filename *filename;
 
 	filename = getname(compat_ptr(regs.regs[4]));
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = compat_do_execve(filename, compat_ptr(regs.regs[5]),
+	error = compat_do_execve(filename->name, compat_ptr(regs.regs[5]),
 				 compat_ptr(regs.regs[6]), &regs);
 	putname(filename);
 
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index b08220c82113..2bd561bc05ae 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -133,13 +133,13 @@ _sys_clone(nabi_no_regargs struct pt_regs regs)
 asmlinkage int sys_execve(nabi_no_regargs struct pt_regs regs)
 {
 	int error;
-	char * filename;
+	struct filename *filename;
 
 	filename = getname((const char __user *) (long)regs.regs[4]);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = do_execve(filename,
+	error = do_execve(filename->name,
 			  (const char __user *const __user *) (long)regs.regs[5],
 	                  (const char __user *const __user *) (long)regs.regs[6],
 			  &regs);
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index e9cceba193b6..606ae928b62a 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -306,14 +306,14 @@ asmlinkage long sys_execve(const char __user *name,
 			   const char __user *const __user *argv,
 			   const char __user *const __user *envp)
 {
-	char *filename;
+	struct filename *filename;
 	int error;
 
 	filename = getname(name);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		return error;
-	error = do_execve(filename, argv, envp, current_frame());
+	error = do_execve(filename->name, argv, envp, current_frame());
 	putname(filename);
 	return error;
 }
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 55210f37d1a3..c35f3ab1a8d3 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -271,7 +271,7 @@ asmlinkage long _sys_execve(const char __user *name,
 			    struct pt_regs *regs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname(name);
 	error = PTR_ERR(filename);
@@ -279,7 +279,7 @@ asmlinkage long _sys_execve(const char __user *name,
 	if (IS_ERR(filename))
 		goto out;
 
-	error = do_execve(filename, argv, envp, regs);
+	error = do_execve(filename->name, argv, envp, regs);
 	putname(filename);
 
 out:
diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
index 6785de7bd2a0..a0760b87fd4e 100644
--- a/arch/parisc/hpux/fs.c
+++ b/arch/parisc/hpux/fs.c
@@ -34,14 +34,14 @@
 int hpux_execve(struct pt_regs *regs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname((const char __user *) regs->gr[26]);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
 
-	error = do_execve(filename,
+	error = do_execve(filename->name,
 			  (const char __user *const __user *) regs->gr[25],
 			  (const char __user *const __user *) regs->gr[24],
 			  regs);
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 8c6b6b6561f0..cbc37216bf90 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -342,13 +342,13 @@ unsigned long thread_saved_pc(struct task_struct *t)
 asmlinkage int sys_execve(struct pt_regs *regs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname((const char __user *) regs->gr[26]);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = do_execve(filename,
+	error = do_execve(filename->name,
 			  (const char __user *const __user *) regs->gr[25],
 			  (const char __user *const __user *) regs->gr[24],
 			  regs);
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index dc9a62462323..bf5b93a885d3 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -60,14 +60,14 @@
 asmlinkage int sys32_execve(struct pt_regs *regs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	DBG(("sys32_execve(%p) r26 = 0x%lx\n", regs, regs->gr[26]));
 	filename = getname((const char __user *) regs->gr[26]);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = compat_do_execve(filename, compat_ptr(regs->gr[25]),
+	error = compat_do_execve(filename->name, compat_ptr(regs->gr[25]),
 				 compat_ptr(regs->gr[24]), regs);
 	putname(filename);
 out:
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index d5ad666efd8b..49eba6c191d5 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1060,7 +1060,7 @@ int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
 	       struct pt_regs *regs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname((const char __user *) a0);
 	error = PTR_ERR(filename);
@@ -1069,7 +1069,7 @@ int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
 	flush_fp_to_thread(current);
 	flush_altivec_to_thread(current);
 	flush_spe_to_thread(current);
-	error = do_execve(filename,
+	error = do_execve(filename->name,
 			  (const char __user *const __user *) a1,
 			  (const char __user *const __user *) a2, regs);
 	putname(filename);
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index abd1112da54f..a3de472b7246 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -161,7 +161,7 @@ long compat_sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
 		  struct pt_regs *regs)
 {
 	int error;
-	char * filename;
+	struct filename *filename;
 	
 	filename = getname((char __user *) a0);
 	error = PTR_ERR(filename);
@@ -170,7 +170,8 @@ long compat_sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
 	flush_fp_to_thread(current);
 	flush_altivec_to_thread(current);
 
-	error = compat_do_execve(filename, compat_ptr(a1), compat_ptr(a2), regs);
+	error = compat_do_execve(filename->name, compat_ptr(a1),
+				compat_ptr(a2), regs);
 
 	putname(filename);
 
diff --git a/arch/score/kernel/sys_score.c b/arch/score/kernel/sys_score.c
index 21e867974066..d45cf00a3351 100644
--- a/arch/score/kernel/sys_score.c
+++ b/arch/score/kernel/sys_score.c
@@ -92,14 +92,14 @@ asmlinkage long
 score_execve(struct pt_regs *regs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname((char __user*)regs->regs[4]);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		return error;
 
-	error = do_execve(filename,
+	error = do_execve(filename->name,
 			  (const char __user *const __user *)regs->regs[5],
 			  (const char __user *const __user *)regs->regs[6],
 			  regs);
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 59521e8a164d..ba7345f37bc9 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -298,14 +298,14 @@ asmlinkage int sys_execve(const char __user *ufilename,
 {
 	struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname(ufilename);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
 
-	error = do_execve(filename, uargv, uenvp, regs);
+	error = do_execve(filename->name, uargv, uenvp, regs);
 	putname(filename);
 out:
 	return error;
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index 602545b12a86..98a709f0c3c4 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -491,14 +491,14 @@ asmlinkage int sys_execve(const char *ufilename, char **uargv,
 			  struct pt_regs *pregs)
 {
 	int error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname((char __user *)ufilename);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
 
-	error = do_execve(filename,
+	error = do_execve(filename->name,
 			  (const char __user *const __user *)uargv,
 			  (const char __user *const __user *)uenvp,
 			  pregs);
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 14006d8aca28..487bffb36f5e 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -482,7 +482,7 @@ int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs)
 asmlinkage int sparc_execve(struct pt_regs *regs)
 {
 	int error, base = 0;
-	char *filename;
+	struct filename *filename;
 
 	/* Check for indirect call. */
 	if(regs->u_regs[UREG_G1] == 0)
@@ -492,7 +492,7 @@ asmlinkage int sparc_execve(struct pt_regs *regs)
 	error = PTR_ERR(filename);
 	if(IS_ERR(filename))
 		goto out;
-	error = do_execve(filename,
+	error = do_execve(filename->name,
 			  (const char __user *const  __user *)
 			  regs->u_regs[base + UREG_I1],
 			  (const char __user *const  __user *)
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index aff0c72fac09..fcaa59421126 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -722,7 +722,7 @@ EXPORT_SYMBOL(dump_fpu);
 asmlinkage int sparc_execve(struct pt_regs *regs)
 {
 	int error, base = 0;
-	char *filename;
+	struct filename *filename;
 
 	/* User register window flush is done by entry.S */
 
@@ -734,7 +734,7 @@ asmlinkage int sparc_execve(struct pt_regs *regs)
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = do_execve(filename,
+	error = do_execve(filename->name,
 			  (const char __user *const __user *)
 			  regs->u_regs[base + UREG_I1],
 			  (const char __user *const __user *)
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index d862499eb01c..c3239811a1b5 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -403,7 +403,7 @@ asmlinkage long compat_sys_rt_sigaction(int sig,
 asmlinkage long sparc32_execve(struct pt_regs *regs)
 {
 	int error, base = 0;
-	char *filename;
+	struct filename *filename;
 
 	/* User register window flush is done by entry.S */
 
@@ -416,7 +416,7 @@ asmlinkage long sparc32_execve(struct pt_regs *regs)
 	if (IS_ERR(filename))
 		goto out;
 
-	error = compat_do_execve(filename,
+	error = compat_do_execve(filename->name,
 				 compat_ptr(regs->u_regs[base + UREG_I1]),
 				 compat_ptr(regs->u_regs[base + UREG_I2]), regs);
 
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index 6be799150501..622560030a58 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -594,13 +594,13 @@ SYSCALL_DEFINE4(execve, const char __user *, path,
 		struct pt_regs *, regs)
 {
 	long error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname(path);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = do_execve(filename, argv, envp, regs);
+	error = do_execve(filename->name, argv, envp, regs);
 	putname(filename);
 	if (error == 0)
 		single_step_execve();
@@ -615,13 +615,13 @@ long compat_sys_execve(const char __user *path,
 		       struct pt_regs *regs)
 {
 	long error;
-	char *filename;
+	struct filename *filename;
 
 	filename = getname(path);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = compat_do_execve(filename, argv, envp, regs);
+	error = compat_do_execve(filename->name, argv, envp, regs);
 	putname(filename);
 	if (error == 0)
 		single_step_execve();
diff --git a/arch/unicore32/kernel/sys.c b/arch/unicore32/kernel/sys.c
index 5fd9af773e15..fabdee96110b 100644
--- a/arch/unicore32/kernel/sys.c
+++ b/arch/unicore32/kernel/sys.c
@@ -51,13 +51,13 @@ asmlinkage long __sys_execve(const char __user *filename,
 			  struct pt_regs *regs)
 {
 	int error;
-	char *fn;
+	struct filename *fn;
 
 	fn = getname(filename);
 	error = PTR_ERR(fn);
 	if (IS_ERR(fn))
 		goto out;
-	error = do_execve(fn, argv, envp, regs);
+	error = do_execve(fn->name, argv, envp, regs);
 	putname(fn);
 out:
 	return error;
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index bc44311aa18c..bc020825cce5 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -328,13 +328,13 @@ long xtensa_execve(const char __user *name,
                    struct pt_regs *regs)
 {
 	long error;
-	char * filename;
+	struct filename *filename;
 
 	filename = getname(name);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = do_execve(filename, argv, envp, regs);
+	error = do_execve(filename->name, argv, envp, regs);
 	putname(filename);
 out:
 	return error;
diff --git a/fs/compat.c b/fs/compat.c
index b7a24d0ca30d..015e1e1f87c6 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -776,16 +776,16 @@ asmlinkage long compat_sys_mount(const char __user * dev_name,
 	char *kernel_type;
 	unsigned long data_page;
 	char *kernel_dev;
-	char *dir_page;
+	struct filename *dir;
 	int retval;
 
 	retval = copy_mount_string(type, &kernel_type);
 	if (retval < 0)
 		goto out;
 
-	dir_page = getname(dir_name);
-	retval = PTR_ERR(dir_page);
-	if (IS_ERR(dir_page))
+	dir = getname(dir_name);
+	retval = PTR_ERR(dir);
+	if (IS_ERR(dir))
 		goto out1;
 
 	retval = copy_mount_string(dev_name, &kernel_dev);
@@ -807,7 +807,7 @@ asmlinkage long compat_sys_mount(const char __user * dev_name,
 		}
 	}
 
-	retval = do_mount(kernel_dev, dir_page, kernel_type,
+	retval = do_mount(kernel_dev, dir->name, kernel_type,
 			flags, (void*)data_page);
 
  out4:
@@ -815,7 +815,7 @@ asmlinkage long compat_sys_mount(const char __user * dev_name,
  out3:
 	kfree(kernel_dev);
  out2:
-	putname(dir_page);
+	putname(dir);
  out1:
 	kfree(kernel_type);
  out:
diff --git a/fs/exec.c b/fs/exec.c
index ca434534ae9a..4e591e20e108 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -105,7 +105,7 @@ static inline void put_binfmt(struct linux_binfmt * fmt)
 SYSCALL_DEFINE1(uselib, const char __user *, library)
 {
 	struct file *file;
-	char *tmp = getname(library);
+	struct filename *tmp = getname(library);
 	int error = PTR_ERR(tmp);
 	static const struct open_flags uselib_flags = {
 		.open_flag = O_LARGEFILE | O_RDONLY | __FMODE_EXEC,
@@ -116,7 +116,7 @@ SYSCALL_DEFINE1(uselib, const char __user *, library)
 	if (IS_ERR(tmp))
 		goto out;
 
-	file = do_filp_open(AT_FDCWD, tmp, &uselib_flags, LOOKUP_FOLLOW);
+	file = do_filp_open(AT_FDCWD, tmp->name, &uselib_flags, LOOKUP_FOLLOW);
 	putname(tmp);
 	error = PTR_ERR(file);
 	if (IS_ERR(file))
@@ -1664,10 +1664,10 @@ SYSCALL_DEFINE3(execve,
 		const char __user *const __user *, argv,
 		const char __user *const __user *, envp)
 {
-	const char *path = getname(filename);
+	struct filename *path = getname(filename);
 	int error = PTR_ERR(path);
 	if (!IS_ERR(path)) {
-		error = do_execve(path, argv, envp, current_pt_regs());
+		error = do_execve(path->name, argv, envp, current_pt_regs());
 		putname(path);
 	}
 	return error;
@@ -1677,10 +1677,11 @@ asmlinkage long compat_sys_execve(const char __user * filename,
 	const compat_uptr_t __user * argv,
 	const compat_uptr_t __user * envp)
 {
-	const char *path = getname(filename);
+	struct filename *path = getname(filename);
 	int error = PTR_ERR(path);
 	if (!IS_ERR(path)) {
-		error = compat_do_execve(path, argv, envp, current_pt_regs());
+		error = compat_do_execve(path->name, argv, envp,
+							current_pt_regs());
 		putname(path);
 	}
 	return error;
diff --git a/fs/filesystems.c b/fs/filesystems.c
index 96f24286667a..da165f6adcbf 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -124,7 +124,7 @@ EXPORT_SYMBOL(unregister_filesystem);
 static int fs_index(const char __user * __name)
 {
 	struct file_system_type * tmp;
-	char * name;
+	struct filename *name;
 	int err, index;
 
 	name = getname(__name);
@@ -135,7 +135,7 @@ static int fs_index(const char __user * __name)
 	err = -EINVAL;
 	read_lock(&file_systems_lock);
 	for (tmp=file_systems, index=0 ; tmp ; tmp=tmp->next, index++) {
-		if (strcmp(tmp->name,name) == 0) {
+		if (strcmp(tmp->name, name->name) == 0) {
 			err = index;
 			break;
 		}
diff --git a/fs/namei.c b/fs/namei.c
index 9cc0fce7fc91..ec638d27642f 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -117,18 +117,37 @@
  * POSIX.1 2.4: an empty pathname is invalid (ENOENT).
  * PATH_MAX includes the nul terminator --RR.
  */
-static char *getname_flags(const char __user *filename, int flags, int *empty)
+void final_putname(struct filename *name)
 {
-	char *result = __getname(), *err;
+	__putname(name->name);
+	kfree(name);
+}
+
+static struct filename *
+getname_flags(const char __user *filename, int flags, int *empty)
+{
+	struct filename *result, *err;
+	char *kname;
 	int len;
 
+	/* FIXME: create dedicated slabcache? */
+	result = kzalloc(sizeof(*result), GFP_KERNEL);
 	if (unlikely(!result))
 		return ERR_PTR(-ENOMEM);
 
-	len = strncpy_from_user(result, filename, PATH_MAX);
-	err = ERR_PTR(len);
-	if (unlikely(len < 0))
+	kname = __getname();
+	if (unlikely(!kname)) {
+		err = ERR_PTR(-ENOMEM);
+		goto error_free_name;
+	}
+
+	result->name = kname;
+	result->uptr = filename;
+	len = strncpy_from_user(kname, filename, PATH_MAX);
+	if (unlikely(len < 0)) {
+		err = ERR_PTR(len);
 		goto error;
+	}
 
 	/* The empty path is special. */
 	if (unlikely(!len)) {
@@ -146,22 +165,25 @@ static char *getname_flags(const char __user *filename, int flags, int *empty)
 	}
 
 error:
-	__putname(result);
+	__putname(kname);
+error_free_name:
+	kfree(result);
 	return err;
 }
 
-char *getname(const char __user * filename)
+struct filename *
+getname(const char __user * filename)
 {
 	return getname_flags(filename, 0, NULL);
 }
+EXPORT_SYMBOL(getname);
 
 #ifdef CONFIG_AUDITSYSCALL
-void putname(const char *name)
+void putname(struct filename *name)
 {
 	if (unlikely(!audit_dummy_context()))
-		audit_putname(name);
-	else
-		__putname(name);
+		return audit_putname(name);
+	final_putname(name);
 }
 #endif
 
@@ -2093,13 +2115,13 @@ int user_path_at_empty(int dfd, const char __user *name, unsigned flags,
 		 struct path *path, int *empty)
 {
 	struct nameidata nd;
-	char *tmp = getname_flags(name, flags, empty);
+	struct filename *tmp = getname_flags(name, flags, empty);
 	int err = PTR_ERR(tmp);
 	if (!IS_ERR(tmp)) {
 
 		BUG_ON(flags & LOOKUP_PARENT);
 
-		err = do_path_lookup(dfd, tmp, flags, &nd);
+		err = do_path_lookup(dfd, tmp->name, flags, &nd);
 		putname(tmp);
 		if (!err)
 			*path = nd.path;
@@ -2113,22 +2135,22 @@ int user_path_at(int dfd, const char __user *name, unsigned flags,
 	return user_path_at_empty(dfd, name, flags, path, NULL);
 }
 
-static int user_path_parent(int dfd, const char __user *path,
-			struct nameidata *nd, char **name)
+static struct filename *
+user_path_parent(int dfd, const char __user *path, struct nameidata *nd)
 {
-	char *s = getname(path);
+	struct filename *s = getname(path);
 	int error;
 
 	if (IS_ERR(s))
-		return PTR_ERR(s);
+		return s;
 
-	error = do_path_lookup(dfd, s, LOOKUP_PARENT, nd);
-	if (error)
+	error = do_path_lookup(dfd, s->name, LOOKUP_PARENT, nd);
+	if (error) {
 		putname(s);
-	else
-		*name = s;
+		return ERR_PTR(error);
+	}
 
-	return error;
+	return s;
 }
 
 /*
@@ -3039,11 +3061,11 @@ EXPORT_SYMBOL(done_path_create);
 
 struct dentry *user_path_create(int dfd, const char __user *pathname, struct path *path, int is_dir)
 {
-	char *tmp = getname(pathname);
+	struct filename *tmp = getname(pathname);
 	struct dentry *res;
 	if (IS_ERR(tmp))
 		return ERR_CAST(tmp);
-	res = kern_path_create(dfd, tmp, path, is_dir);
+	res = kern_path_create(dfd, tmp->name, path, is_dir);
 	putname(tmp);
 	return res;
 }
@@ -3248,13 +3270,13 @@ out:
 static long do_rmdir(int dfd, const char __user *pathname)
 {
 	int error = 0;
-	char * name;
+	struct filename *name;
 	struct dentry *dentry;
 	struct nameidata nd;
 
-	error = user_path_parent(dfd, pathname, &nd, &name);
-	if (error)
-		return error;
+	name = user_path_parent(dfd, pathname, &nd);
+	if (IS_ERR(name))
+		return PTR_ERR(name);
 
 	switch(nd.last_type) {
 	case LAST_DOTDOT:
@@ -3343,14 +3365,14 @@ int vfs_unlink(struct inode *dir, struct dentry *dentry)
 static long do_unlinkat(int dfd, const char __user *pathname)
 {
 	int error;
-	char *name;
+	struct filename *name;
 	struct dentry *dentry;
 	struct nameidata nd;
 	struct inode *inode = NULL;
 
-	error = user_path_parent(dfd, pathname, &nd, &name);
-	if (error)
-		return error;
+	name = user_path_parent(dfd, pathname, &nd);
+	if (IS_ERR(name))
+		return PTR_ERR(name);
 
 	error = -EISDIR;
 	if (nd.last_type != LAST_NORM)
@@ -3434,7 +3456,7 @@ SYSCALL_DEFINE3(symlinkat, const char __user *, oldname,
 		int, newdfd, const char __user *, newname)
 {
 	int error;
-	char *from;
+	struct filename *from;
 	struct dentry *dentry;
 	struct path path;
 
@@ -3447,9 +3469,9 @@ SYSCALL_DEFINE3(symlinkat, const char __user *, oldname,
 	if (IS_ERR(dentry))
 		goto out_putname;
 
-	error = security_path_symlink(&path, dentry, from);
+	error = security_path_symlink(&path, dentry, from->name);
 	if (!error)
-		error = vfs_symlink(path.dentry->d_inode, dentry, from);
+		error = vfs_symlink(path.dentry->d_inode, dentry, from->name);
 	done_path_create(&path, dentry);
 out_putname:
 	putname(from);
@@ -3729,17 +3751,21 @@ SYSCALL_DEFINE4(renameat, int, olddfd, const char __user *, oldname,
 	struct dentry *old_dentry, *new_dentry;
 	struct dentry *trap;
 	struct nameidata oldnd, newnd;
-	char *from;
-	char *to;
+	struct filename *from;
+	struct filename *to;
 	int error;
 
-	error = user_path_parent(olddfd, oldname, &oldnd, &from);
-	if (error)
+	from = user_path_parent(olddfd, oldname, &oldnd);
+	if (IS_ERR(from)) {
+		error = PTR_ERR(from);
 		goto exit;
+	}
 
-	error = user_path_parent(newdfd, newname, &newnd, &to);
-	if (error)
+	to = user_path_parent(newdfd, newname, &newnd);
+	if (IS_ERR(to)) {
+		error = PTR_ERR(to);
 		goto exit1;
+	}
 
 	error = -EXDEV;
 	if (oldnd.path.mnt != newnd.path.mnt)
diff --git a/fs/namespace.c b/fs/namespace.c
index fc33207e28ad..24960626bb6b 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2408,7 +2408,7 @@ SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
 {
 	int ret;
 	char *kernel_type;
-	char *kernel_dir;
+	struct filename *kernel_dir;
 	char *kernel_dev;
 	unsigned long data_page;
 
@@ -2430,7 +2430,7 @@ SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
 	if (ret < 0)
 		goto out_data;
 
-	ret = do_mount(kernel_dev, kernel_dir, kernel_type, flags,
+	ret = do_mount(kernel_dev, kernel_dir->name, kernel_type, flags,
 		(void *) data_page);
 
 	free_page(data_page);
diff --git a/fs/open.c b/fs/open.c
index a015437e1535..81dd92ac10ff 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -895,13 +895,13 @@ long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode)
 {
 	struct open_flags op;
 	int lookup = build_open_flags(flags, mode, &op);
-	char *tmp = getname(filename);
+	struct filename *tmp = getname(filename);
 	int fd = PTR_ERR(tmp);
 
 	if (!IS_ERR(tmp)) {
 		fd = get_unused_fd_flags(flags);
 		if (fd >= 0) {
-			struct file *f = do_filp_open(dfd, tmp, &op, lookup);
+			struct file *f = do_filp_open(dfd, tmp->name, &op, lookup);
 			if (IS_ERR(f)) {
 				put_unused_fd(fd);
 				fd = PTR_ERR(f);
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index ff0135d6bc51..af1661f7a54f 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -331,11 +331,11 @@ static struct super_block *quotactl_block(const char __user *special, int cmd)
 #ifdef CONFIG_BLOCK
 	struct block_device *bdev;
 	struct super_block *sb;
-	char *tmp = getname(special);
+	struct filename *tmp = getname(special);
 
 	if (IS_ERR(tmp))
 		return ERR_CAST(tmp);
-	bdev = lookup_bdev(tmp);
+	bdev = lookup_bdev(tmp->name);
 	putname(tmp);
 	if (IS_ERR(bdev))
 		return ERR_CAST(bdev);
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 3df643d1ac5b..7ab2898a8e52 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -461,6 +461,8 @@ extern int audit_classify_arch(int arch);
 #define	AUDIT_TYPE_CHILD_CREATE 4	/* a child being created */
 
 #ifdef CONFIG_AUDITSYSCALL
+struct filename;
+
 /* These are defined in auditsc.c */
 				/* Public API */
 extern int  audit_alloc(struct task_struct *task);
@@ -469,8 +471,8 @@ extern void __audit_syscall_entry(int arch,
 				  int major, unsigned long a0, unsigned long a1,
 				  unsigned long a2, unsigned long a3);
 extern void __audit_syscall_exit(int ret_success, long ret_value);
-extern void __audit_getname(const char *name);
-extern void audit_putname(const char *name);
+extern void __audit_getname(struct filename *name);
+extern void audit_putname(struct filename *name);
 extern void __audit_inode(const char *name, const struct dentry *dentry,
 				unsigned int parent);
 extern void __audit_inode_child(const struct inode *parent,
@@ -505,7 +507,7 @@ static inline void audit_syscall_exit(void *pt_regs)
 		__audit_syscall_exit(success, return_code);
 	}
 }
-static inline void audit_getname(const char *name)
+static inline void audit_getname(struct filename *name)
 {
 	if (unlikely(!audit_dummy_context()))
 		__audit_getname(name);
@@ -663,9 +665,9 @@ static inline int audit_dummy_context(void)
 {
 	return 1;
 }
-static inline void audit_getname(const char *name)
+static inline void audit_getname(struct filename *name)
 { }
-static inline void audit_putname(const char *name)
+static inline void audit_putname(struct filename *name)
 { }
 static inline void __audit_inode(const char *name, const struct dentry *dentry,
 					unsigned int parent)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 6bac43113dac..3611caa818e2 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2192,6 +2192,10 @@ static inline int break_lease(struct inode *inode, unsigned int mode)
 #endif /* CONFIG_FILE_LOCKING */
 
 /* fs/open.c */
+struct filename {
+	const char *name;		/* pointer to actual string */
+	const __user char *uptr;	/* original userland pointer */
+};
 
 extern int do_truncate(struct dentry *, loff_t start, unsigned int time_attrs,
 		       struct file *filp);
@@ -2204,7 +2208,9 @@ extern struct file *file_open_root(struct dentry *, struct vfsmount *,
 				   const char *, int);
 extern struct file * dentry_open(const struct path *, int, const struct cred *);
 extern int filp_close(struct file *, fl_owner_t id);
-extern char * getname(const char __user *);
+
+extern struct filename *getname(const char __user *);
+
 enum {
 	FILE_CREATED = 1,
 	FILE_OPENED = 2
@@ -2224,12 +2230,14 @@ extern void __init vfs_caches_init(unsigned long);
 
 extern struct kmem_cache *names_cachep;
 
+extern void final_putname(struct filename *name);
+
 #define __getname()		kmem_cache_alloc(names_cachep, GFP_KERNEL)
 #define __putname(name)		kmem_cache_free(names_cachep, (void *)(name))
 #ifndef CONFIG_AUDITSYSCALL
-#define putname(name)   __putname(name)
+#define putname(name)		final_putname(name)
 #else
-extern void putname(const char *name);
+extern void putname(struct filename *name);
 #endif
 
 #ifdef CONFIG_BLOCK
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 9553ed006042..6c5d9dcc9030 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -772,7 +772,7 @@ SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, umode_t, mode,
 {
 	struct path path;
 	struct file *filp;
-	char *name;
+	struct filename *name;
 	struct mq_attr attr;
 	int fd, error;
 	struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns;
@@ -795,7 +795,7 @@ SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, umode_t, mode,
 	ro = mnt_want_write(mnt);	/* we'll drop it in any case */
 	error = 0;
 	mutex_lock(&root->d_inode->i_mutex);
-	path.dentry = lookup_one_len(name, root, strlen(name));
+	path.dentry = lookup_one_len(name->name, root, strlen(name->name));
 	if (IS_ERR(path.dentry)) {
 		error = PTR_ERR(path.dentry);
 		goto out_putfd;
@@ -804,7 +804,7 @@ SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, umode_t, mode,
 
 	if (oflag & O_CREAT) {
 		if (path.dentry->d_inode) {	/* entry already exists */
-			audit_inode(name, path.dentry, 0);
+			audit_inode(name->name, path.dentry, 0);
 			if (oflag & O_EXCL) {
 				error = -EEXIST;
 				goto out;
@@ -824,7 +824,7 @@ SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, umode_t, mode,
 			error = -ENOENT;
 			goto out;
 		}
-		audit_inode(name, path.dentry, 0);
+		audit_inode(name->name, path.dentry, 0);
 		filp = do_open(&path, oflag);
 	}
 
@@ -849,7 +849,7 @@ out_putname:
 SYSCALL_DEFINE1(mq_unlink, const char __user *, u_name)
 {
 	int err;
-	char *name;
+	struct filename *name;
 	struct dentry *dentry;
 	struct inode *inode = NULL;
 	struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns;
@@ -863,7 +863,8 @@ SYSCALL_DEFINE1(mq_unlink, const char __user *, u_name)
 	if (err)
 		goto out_name;
 	mutex_lock_nested(&mnt->mnt_root->d_inode->i_mutex, I_MUTEX_PARENT);
-	dentry = lookup_one_len(name, mnt->mnt_root, strlen(name));
+	dentry = lookup_one_len(name->name, mnt->mnt_root,
+				strlen(name->name));
 	if (IS_ERR(dentry)) {
 		err = PTR_ERR(dentry);
 		goto out_unlock;
diff --git a/kernel/acct.c b/kernel/acct.c
index 5be01017d30f..08354195eecc 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -260,10 +260,10 @@ SYSCALL_DEFINE1(acct, const char __user *, name)
 		return -EPERM;
 
 	if (name) {
-		char *tmp = getname(name);
+		struct filename *tmp = getname(name);
 		if (IS_ERR(tmp))
 			return (PTR_ERR(tmp));
-		error = acct_on(tmp);
+		error = acct_on(tmp->name);
 		putname(tmp);
 	} else {
 		struct bsd_acct_struct *acct;
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index d147585e9ef3..d4d82319eed5 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -103,28 +103,29 @@ struct audit_cap_data {
  * we don't let putname() free it (instead we free all of the saved
  * pointers at syscall exit time).
  *
- * Further, in fs/namei.c:path_lookup() we store the inode and device. */
+ * Further, in fs/namei.c:path_lookup() we store the inode and device.
+ */
 struct audit_names {
-	struct list_head list;		/* audit_context->names_list */
-	const char	*name;
-	unsigned long	ino;
-	dev_t		dev;
-	umode_t		mode;
-	kuid_t		uid;
-	kgid_t		gid;
-	dev_t		rdev;
-	u32		osid;
-	struct audit_cap_data fcap;
-	unsigned int	fcap_ver;
-	int		name_len;	/* number of name's characters to log */
-	unsigned char	type;		/* record type */
-	bool		name_put;	/* call __putname() for this name */
+	struct list_head	list;		/* audit_context->names_list */
+	struct filename	*name;
+	unsigned long		ino;
+	dev_t			dev;
+	umode_t			mode;
+	kuid_t			uid;
+	kgid_t			gid;
+	dev_t			rdev;
+	u32			osid;
+	struct audit_cap_data	 fcap;
+	unsigned int		fcap_ver;
+	int			name_len;	/* number of name's characters to log */
+	unsigned char		type;		/* record type */
+	bool			name_put;	/* call __putname() for this name */
 	/*
 	 * This was an allocated audit_names and not from the array of
 	 * names allocated in the task audit context.  Thus this name
 	 * should be freed on syscall exit
 	 */
-	bool		should_free;
+	bool			should_free;
 };
 
 struct audit_aux_data {
@@ -996,7 +997,7 @@ static inline void audit_free_names(struct audit_context *context)
 		       context->ino_count);
 		list_for_each_entry(n, &context->names_list, list) {
 			printk(KERN_ERR "names[%d] = %p = %s\n", i,
-			       n->name, n->name ?: "(null)");
+			       n->name, n->name->name ?: "(null)");
 		}
 		dump_stack();
 		return;
@@ -1553,7 +1554,7 @@ static void audit_log_name(struct audit_context *context, struct audit_names *n,
 		case AUDIT_NAME_FULL:
 			/* log the full path */
 			audit_log_format(ab, " name=");
-			audit_log_untrustedstring(ab, n->name);
+			audit_log_untrustedstring(ab, n->name->name);
 			break;
 		case 0:
 			/* name was specified as a relative path and the
@@ -1563,7 +1564,7 @@ static void audit_log_name(struct audit_context *context, struct audit_names *n,
 		default:
 			/* log the name's directory component */
 			audit_log_format(ab, " name=");
-			audit_log_n_untrustedstring(ab, n->name,
+			audit_log_n_untrustedstring(ab, n->name->name,
 						    n->name_len);
 		}
 	} else
@@ -2026,7 +2027,7 @@ static struct audit_names *audit_alloc_name(struct audit_context *context,
  * Add a name to the list of audit names for this context.
  * Called from fs/namei.c:getname().
  */
-void __audit_getname(const char *name)
+void __audit_getname(struct filename *name)
 {
 	struct audit_context *context = current->audit_context;
 	struct audit_names *n;
@@ -2040,6 +2041,11 @@ void __audit_getname(const char *name)
 		return;
 	}
 
+#if AUDIT_DEBUG
+	/* The filename _must_ have a populated ->name */
+	BUG_ON(!name->name);
+#endif
+
 	n = audit_alloc_name(context, AUDIT_TYPE_UNKNOWN);
 	if (!n)
 		return;
@@ -2059,7 +2065,7 @@ void __audit_getname(const char *name)
  * then we delay the putname until syscall exit.
  * Called from include/linux/fs.h:putname().
  */
-void audit_putname(const char *name)
+void audit_putname(struct filename *name)
 {
 	struct audit_context *context = current->audit_context;
 
@@ -2074,7 +2080,7 @@ void audit_putname(const char *name)
 
 			list_for_each_entry(n, &context->names_list, list)
 				printk(KERN_ERR "name[%d] = %p = %s\n", i,
-				       n->name, n->name ?: "(null)");
+				       n->name, n->name->name ?: "(null)");
 			}
 #endif
 		__putname(name);
@@ -2088,8 +2094,8 @@ void audit_putname(const char *name)
 			       " put_count=%d\n",
 			       __FILE__, __LINE__,
 			       context->serial, context->major,
-			       context->in_syscall, name, context->name_count,
-			       context->put_count);
+			       context->in_syscall, name->name,
+			       context->name_count, context->put_count);
 			dump_stack();
 		}
 	}
@@ -2152,7 +2158,7 @@ void __audit_inode(const char *name, const struct dentry *dentry,
 
 	list_for_each_entry_reverse(n, &context->names_list, list) {
 		/* does the name pointer match? */
-		if (n->name != name)
+		if (!n->name || n->name->name != name)
 			continue;
 
 		/* match the correct record type */
@@ -2175,7 +2181,7 @@ out_alloc:
 		return;
 out:
 	if (parent) {
-		n->name_len = n->name ? parent_len(n->name) : AUDIT_NAME_FULL;
+		n->name_len = n->name ? parent_len(n->name->name) : AUDIT_NAME_FULL;
 		n->type = AUDIT_TYPE_PARENT;
 	} else {
 		n->name_len = AUDIT_NAME_FULL;
@@ -2220,7 +2226,7 @@ void __audit_inode_child(const struct inode *parent,
 			continue;
 
 		if (n->ino == parent->i_ino &&
-		    !audit_compare_dname_path(dname, n->name, n->name_len)) {
+		    !audit_compare_dname_path(dname, n->name->name, n->name_len)) {
 			found_parent = n;
 			break;
 		}
@@ -2236,8 +2242,8 @@ void __audit_inode_child(const struct inode *parent,
 		if (found_parent && (n->name != found_parent->name))
 			continue;
 
-		if (!strcmp(dname, n->name) ||
-		    !audit_compare_dname_path(dname, n->name,
+		if (!strcmp(dname, n->name->name) ||
+		    !audit_compare_dname_path(dname, n->name->name,
 						found_parent ?
 						found_parent->name_len :
 						AUDIT_NAME_FULL)) {
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 14e254c768fc..90d2ed591de9 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1483,7 +1483,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
 	struct file *swap_file, *victim;
 	struct address_space *mapping;
 	struct inode *inode;
-	char *pathname;
+	struct filename *pathname;
 	int oom_score_adj;
 	int i, type, prev;
 	int err;
@@ -1498,8 +1498,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
 	if (IS_ERR(pathname))
 		goto out;
 
-	victim = filp_open(pathname, O_RDWR|O_LARGEFILE, 0);
-	putname(pathname);
+	victim = filp_open(pathname->name, O_RDWR|O_LARGEFILE, 0);
 	err = PTR_ERR(victim);
 	if (IS_ERR(victim))
 		goto out;
@@ -1936,7 +1935,7 @@ static int setup_swap_map_and_extents(struct swap_info_struct *p,
 SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
 {
 	struct swap_info_struct *p;
-	char *name;
+	struct filename *name;
 	struct file *swap_file = NULL;
 	struct address_space *mapping;
 	int i;
@@ -1967,7 +1966,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
 		name = NULL;
 		goto bad_swap;
 	}
-	swap_file = filp_open(name, O_RDWR|O_LARGEFILE, 0);
+	swap_file = filp_open(name->name, O_RDWR|O_LARGEFILE, 0);
 	if (IS_ERR(swap_file)) {
 		error = PTR_ERR(swap_file);
 		swap_file = NULL;
@@ -2053,7 +2052,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
 
 	printk(KERN_INFO "Adding %uk swap on %s.  "
 			"Priority:%d extents:%d across:%lluk %s%s%s\n",
-		p->pages<<(PAGE_SHIFT-10), name, p->prio,
+		p->pages<<(PAGE_SHIFT-10), name->name, p->prio,
 		nr_extents, (unsigned long long)span<<(PAGE_SHIFT-10),
 		(p->flags & SWP_SOLIDSTATE) ? "SS" : "",
 		(p->flags & SWP_DISCARDABLE) ? "D" : "",
-- 
2.39.5