10 files changed, 38 insertions, 45 deletions

diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 280ded8b79ba..8538015ed4a0 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -171,12 +171,10 @@ static ssize_t hypfs_aio_write(struct kiocb *iocb, const struct iovec *iov,
                               unsigned long nr_segs, loff_t offset)
 {
         int rc;
-        struct super_block *sb;
-        struct hypfs_sb_info *fs_info;
+        struct super_block *sb = file_inode(iocb->ki_filp)->i_sb;
+        struct hypfs_sb_info *fs_info = sb->s_fs_info;
         size_t count = iov_length(iov, nr_segs);
 
-        sb = iocb->ki_filp->f_path.dentry->d_inode->i_sb;
-        fs_info = sb->s_fs_info;
         /*
          * Currently we only allow one update per second for two reasons:
          * 1. diag 204 is VERY expensive
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 4929502c1372..ce130493b802 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -71,7 +71,7 @@ static ssize_t msr_read(struct file *file, char __user *buf,
         u32 __user *tmp = (u32 __user *) buf;
         u32 data[2];
         u32 reg = *ppos;
-        int cpu = iminor(file->f_path.dentry->d_inode);
+        int cpu = iminor(file_inode(file));
         int err = 0;
         ssize_t bytes = 0;
 
@@ -99,7 +99,7 @@ static ssize_t msr_write(struct file *file, const char __user *buf,
         const u32 __user *tmp = (const u32 __user *)buf;
         u32 data[2];
         u32 reg = *ppos;
-        int cpu = iminor(file->f_path.dentry->d_inode);
+        int cpu = iminor(file_inode(file));
         int err = 0;
         ssize_t bytes = 0;
 
@@ -125,7 +125,7 @@ static long msr_ioctl(struct file *file, unsigned int ioc, unsigned long arg)
 {
         u32 __user *uregs = (u32 __user *)arg;
         u32 regs[8];
-        int cpu = iminor(file->f_path.dentry->d_inode);
+        int cpu = iminor(file_inode(file));
         int err;
 
         switch (ioc) {
@@ -171,13 +171,12 @@ static long msr_ioctl(struct file *file, unsigned int ioc, unsigned long arg)
 
 static int msr_open(struct inode *inode, struct file *file)
 {
-        unsigned int cpu;
+        unsigned int cpu = iminor(file_inode(file));
         struct cpuinfo_x86 *c;
 
         if (!capable(CAP_SYS_RAWIO))
                 return -EPERM;
 
-        cpu = iminor(file->f_path.dentry->d_inode);
         if (cpu >= nr_cpu_ids || !cpu_online(cpu))
                 return -ENXIO;  /* No such CPU */
 
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 195d56d8a1ee..e336b281b847 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -580,7 +580,7 @@ static int do_devinfo_ioctl(struct comedi_device *dev,
                             struct comedi_devinfo __user *arg,
                             struct file *file)
 {
-        const unsigned minor = iminor(file->f_dentry->d_inode);
+        const unsigned minor = iminor(file_inode(file));
         struct comedi_file_info *info = comedi_file_info_from_minor(minor);
         struct comedi_subdevice *s;
         struct comedi_devinfo devinfo;
@@ -1615,7 +1615,7 @@ static int do_poll_ioctl(struct comedi_device *dev, unsigned int arg,
 static long comedi_unlocked_ioctl(struct file *file, unsigned int cmd,
                                   unsigned long arg)
 {
-        const unsigned minor = iminor(file->f_dentry->d_inode);
+        const unsigned minor = iminor(file_inode(file));
         struct comedi_file_info *info = comedi_file_info_from_minor(minor);
         struct comedi_device *dev = comedi_dev_from_file_info(info);
         int rc;
@@ -1743,7 +1743,7 @@ static struct vm_operations_struct comedi_vm_ops = {
 
 static int comedi_mmap(struct file *file, struct vm_area_struct *vma)
 {
-        const unsigned minor = iminor(file->f_dentry->d_inode);
+        const unsigned minor = iminor(file_inode(file));
         struct comedi_file_info *info = comedi_file_info_from_minor(minor);
         struct comedi_device *dev = comedi_dev_from_file_info(info);
         struct comedi_subdevice *s;
@@ -1823,7 +1823,7 @@ done:
 static unsigned int comedi_poll(struct file *file, poll_table *wait)
 {
         unsigned int mask = 0;
-        const unsigned minor = iminor(file->f_dentry->d_inode);
+        const unsigned minor = iminor(file_inode(file));
         struct comedi_file_info *info = comedi_file_info_from_minor(minor);
         struct comedi_device *dev = comedi_dev_from_file_info(info);
         struct comedi_subdevice *s;
@@ -1869,7 +1869,7 @@ static ssize_t comedi_write(struct file *file, const char __user *buf,
         struct comedi_async *async;
         int n, m, count = 0, retval = 0;
         DECLARE_WAITQUEUE(wait, current);
-        const unsigned minor = iminor(file->f_dentry->d_inode);
+        const unsigned minor = iminor(file_inode(file));
         struct comedi_file_info *info = comedi_file_info_from_minor(minor);
         struct comedi_device *dev = comedi_dev_from_file_info(info);
 
@@ -1964,7 +1964,7 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes,
         struct comedi_async *async;
         int n, m, count = 0, retval = 0;
         DECLARE_WAITQUEUE(wait, current);
-        const unsigned minor = iminor(file->f_dentry->d_inode);
+        const unsigned minor = iminor(file_inode(file));
         struct comedi_file_info *info = comedi_file_info_from_minor(minor);
         struct comedi_device *dev = comedi_dev_from_file_info(info);
 
@@ -2133,7 +2133,7 @@ ok:
 
 static int comedi_fasync(int fd, struct file *file, int on)
 {
-        const unsigned minor = iminor(file->f_dentry->d_inode);
+        const unsigned minor = iminor(file_inode(file));
         struct comedi_device *dev = comedi_dev_from_minor(minor);
 
         if (!dev)
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index fd473639ab70..05400acbc456 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -960,11 +960,10 @@ static ssize_t tty_read(struct file *file, char __user *buf, size_t count,
                         loff_t *ppos)
 {
         int i;
-        struct inode *inode = file->f_path.dentry->d_inode;
         struct tty_struct *tty = file_tty(file);
         struct tty_ldisc *ld;
 
-        if (tty_paranoia_check(tty, inode, "tty_read"))
+        if (tty_paranoia_check(tty, file_inode(file), "tty_read"))
                 return -EIO;
         if (!tty || (test_bit(TTY_IO_ERROR, &tty->flags)))
                 return -EIO;
@@ -1132,12 +1131,11 @@ void tty_write_message(struct tty_struct *tty, char *msg)
 static ssize_t tty_write(struct file *file, const char __user *buf,
                                                 size_t count, loff_t *ppos)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
         struct tty_struct *tty = file_tty(file);
         struct tty_ldisc *ld;
         ssize_t ret;
 
-        if (tty_paranoia_check(tty, inode, "tty_write"))
+        if (tty_paranoia_check(tty, file_inode(file), "tty_write"))
                 return -EIO;
         if (!tty || !tty->ops->write ||
                 (test_bit(TTY_IO_ERROR, &tty->flags)))
@@ -2047,7 +2045,7 @@ static unsigned int tty_poll(struct file *filp, poll_table *wait)
         struct tty_ldisc *ld;
         int ret = 0;
 
-        if (tty_paranoia_check(tty, filp->f_path.dentry->d_inode, "tty_poll"))
+        if (tty_paranoia_check(tty, file_inode(filp), "tty_poll"))
                 return 0;
 
         ld = tty_ldisc_ref_wait(tty);
@@ -2063,7 +2061,7 @@ static int __tty_fasync(int fd, struct file *filp, int on)
         unsigned long flags;
         int retval = 0;
 
-        if (tty_paranoia_check(tty, filp->f_path.dentry->d_inode, "tty_fasync"))
+        if (tty_paranoia_check(tty, file_inode(filp), "tty_fasync"))
                 goto out;
 
         retval = fasync_helper(fd, filp, on, &tty->fasync);
@@ -2637,9 +2635,8 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
         void __user *p = (void __user *)arg;
         int retval;
         struct tty_ldisc *ld;
-        struct inode *inode = file->f_dentry->d_inode;
 
-        if (tty_paranoia_check(tty, inode, "tty_ioctl"))
+        if (tty_paranoia_check(tty, file_inode(file), "tty_ioctl"))
                 return -EINVAL;
 
         real_tty = tty_pair_get_tty(tty);
@@ -2780,12 +2777,11 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 static long tty_compat_ioctl(struct file *file, unsigned int cmd,
                                 unsigned long arg)
 {
-        struct inode *inode = file->f_dentry->d_inode;
         struct tty_struct *tty = file_tty(file);
         struct tty_ldisc *ld;
         int retval = -ENOIOCTLCMD;
 
-        if (tty_paranoia_check(tty, inode, "tty_ioctl"))
+        if (tty_paranoia_check(tty, file_inode(file), "tty_ioctl"))
                 return -EINVAL;
 
         if (tty->ops->compat_ioctl) {
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index c541ab8b64dd..b505a145a593 100644
--- a/fs/ext4/indirect.c
+++ b/fs/ext4/indirect.c
@@ -1606,7 +1606,7 @@ err:
 
 int ext4_ind_punch_hole(struct file *file, loff_t offset, loff_t length)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         struct super_block *sb = inode->i_sb;
         ext4_lblk_t first_block, stop_block;
         struct address_space *mapping = inode->i_mapping;
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index b7a053d4c6d3..958a46da19ae 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -29,7 +29,7 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
                                                 struct vm_fault *vmf)
 {
         struct page *page = vmf->page;
-        struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(vma->vm_file);
         struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
         block_t old_blk_addr;
         struct dnode_of_data dn;
@@ -544,7 +544,7 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
 static long f2fs_fallocate(struct file *file, int mode,
                                 loff_t offset, loff_t len)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         long ret;
 
         if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
@@ -577,7 +577,7 @@ static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
 
 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
-        struct inode *inode = filp->f_dentry->d_inode;
+        struct inode *inode = file_inode(filp);
         struct f2fs_inode_info *fi = F2FS_I(inode);
         unsigned int flags;
         int ret;
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index e9bdec0b16d9..11dfa0c3fb46 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -532,7 +532,7 @@ void fuse_request_send_background_locked(struct fuse_conn *fc,
 
 void fuse_force_forget(struct file *file, u64 nodeid)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         struct fuse_conn *fc = get_fuse_conn(inode);
         struct fuse_req *req;
         struct fuse_forget_in inarg;
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index c8071768b950..34b80ba95bad 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -355,7 +355,7 @@ static int fuse_wait_on_page_writeback(struct inode *inode, pgoff_t index)
 
 static int fuse_flush(struct file *file, fl_owner_t id)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         struct fuse_conn *fc = get_fuse_conn(inode);
         struct fuse_file *ff = file->private_data;
         struct fuse_req *req;
@@ -1215,7 +1215,7 @@ static ssize_t __fuse_direct_read(struct file *file, const struct iovec *iov,
                                   unsigned long nr_segs, loff_t *ppos)
 {
         ssize_t res;
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
 
         if (is_bad_inode(inode))
                 return -EIO;
@@ -1238,7 +1238,7 @@ static ssize_t fuse_direct_read(struct file *file, char __user *buf,
 static ssize_t __fuse_direct_write(struct file *file, const struct iovec *iov,
                                    unsigned long nr_segs, loff_t *ppos)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         size_t count = iov_length(iov, nr_segs);
         ssize_t res;
 
@@ -1258,7 +1258,7 @@ static ssize_t fuse_direct_write(struct file *file, const char __user *buf,
                                  size_t count, loff_t *ppos)
 {
         struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = count };
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         ssize_t res;
 
         if (is_bad_inode(inode))
@@ -1485,7 +1485,7 @@ static const struct vm_operations_struct fuse_file_vm_ops = {
 static int fuse_file_mmap(struct file *file, struct vm_area_struct *vma)
 {
         if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_MAYWRITE)) {
-                struct inode *inode = file->f_dentry->d_inode;
+                struct inode *inode = file_inode(file);
                 struct fuse_conn *fc = get_fuse_conn(inode);
                 struct fuse_inode *fi = get_fuse_inode(inode);
                 struct fuse_file *ff = file->private_data;
@@ -1543,7 +1543,7 @@ static void fuse_lk_fill(struct fuse_req *req, struct file *file,
                          const struct file_lock *fl, int opcode, pid_t pid,
                          int flock)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         struct fuse_conn *fc = get_fuse_conn(inode);
         struct fuse_file *ff = file->private_data;
         struct fuse_lk_in *arg = &req->misc.lk_in;
@@ -1565,7 +1565,7 @@ static void fuse_lk_fill(struct fuse_req *req, struct file *file,
 
 static int fuse_getlk(struct file *file, struct file_lock *fl)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         struct fuse_conn *fc = get_fuse_conn(inode);
         struct fuse_req *req;
         struct fuse_lk_out outarg;
@@ -1590,7 +1590,7 @@ static int fuse_getlk(struct file *file, struct file_lock *fl)
 
 static int fuse_setlk(struct file *file, struct file_lock *fl, int flock)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         struct fuse_conn *fc = get_fuse_conn(inode);
         struct fuse_req *req;
         int opcode = (fl->fl_flags & FL_SLEEP) ? FUSE_SETLKW : FUSE_SETLK;
@@ -1622,7 +1622,7 @@ static int fuse_setlk(struct file *file, struct file_lock *fl, int flock)
 
 static int fuse_file_lock(struct file *file, int cmd, struct file_lock *fl)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         struct fuse_conn *fc = get_fuse_conn(inode);
         int err;
 
@@ -1645,7 +1645,7 @@ static int fuse_file_lock(struct file *file, int cmd, struct file_lock *fl)
 
 static int fuse_file_flock(struct file *file, int cmd, struct file_lock *fl)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         struct fuse_conn *fc = get_fuse_conn(inode);
         int err;
 
@@ -1702,7 +1702,7 @@ static sector_t fuse_bmap(struct address_space *mapping, sector_t block)
 static loff_t fuse_file_llseek(struct file *file, loff_t offset, int whence)
 {
         loff_t retval;
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
 
         /* No i_mutex protection necessary for SEEK_CUR and SEEK_SET */
         if (whence == SEEK_CUR || whence == SEEK_SET)
@@ -2079,7 +2079,7 @@ EXPORT_SYMBOL_GPL(fuse_do_ioctl);
 long fuse_ioctl_common(struct file *file, unsigned int cmd,
                        unsigned long arg, unsigned int flags)
 {
-        struct inode *inode = file->f_dentry->d_inode;
+        struct inode *inode = file_inode(file);
         struct fuse_conn *fc = get_fuse_conn(inode);
 
         if (!fuse_allow_current_process(fc))
diff --git a/fs/seq_file.c b/fs/seq_file.c
index f2bc3dfd0b88..f9538ea2a756 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -339,7 +339,7 @@ EXPORT_SYMBOL(seq_lseek);
 /**
  *      seq_release -   free the structures associated with sequential file.
  *      @file: file in question
- *      @inode: file->f_path.dentry->d_inode
+ *      @inode: its inode
  *
  *      Frees the structures associated with sequential file; can be used
  *      as ->f_op->release() if you don't have private data to destroy.
diff --git a/kernel/futex.c b/kernel/futex.c
index fbc07a29ec53..f0090a993dab 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -226,7 +226,7 @@ static void drop_futex_key_refs(union futex_key *key)
  * Returns a negative error code or 0
  * The key words are stored in *key on success.
  *
- * For shared mappings, it's (page->index, vma->vm_file->f_path.dentry->d_inode,
+ * For shared mappings, it's (page->index, file_inode(vma->vm_file),
  * offset_within_page).  For private mappings, it's (uaddr, current->mm).
  * We can usually work out the index without swapping in the page.
  *