new helper: file_inode(file)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

8 files changed, 21 insertions, 25 deletions

diff --git a/arch/powerpc/kernel/proc_powerpc.c b/arch/powerpc/kernel/proc_powerpc.c
index c8ae3714e79b..f19d0bdc3241 100644
--- a/arch/powerpc/kernel/proc_powerpc.c
+++ b/arch/powerpc/kernel/proc_powerpc.c
@@ -32,7 +32,7 @@
 static loff_t page_map_seek( struct file *file, loff_t off, int whence)
 {
         loff_t new;
-        struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode);
+        struct proc_dir_entry *dp = PDE(file_inode(file));
 
         switch(whence) {
         case 0:
@@ -55,13 +55,13 @@ static loff_t page_map_seek( struct file *file, loff_t off, int whence)
 static ssize_t page_map_read( struct file *file, char __user *buf, size_t nbytes,
                               loff_t *ppos)
 {
-        struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode);
+        struct proc_dir_entry *dp = PDE(file_inode(file));
         return simple_read_from_buffer(buf, nbytes, ppos, dp->data, dp->size);
 }
 
 static int page_map_mmap( struct file *file, struct vm_area_struct *vma )
 {
-        struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode);
+        struct proc_dir_entry *dp = PDE(file_inode(file));
 
         if ((vma->vm_end - vma->vm_start) > dp->size)
                 return -EINVAL;
diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c
index 8329190312c1..c642f0132988 100644
--- a/arch/powerpc/kernel/rtas_flash.c
+++ b/arch/powerpc/kernel/rtas_flash.c
@@ -191,7 +191,7 @@ static void free_flash_list(struct flash_block_list *f)
 
 static int rtas_flash_release(struct inode *inode, struct file *file)
 {
-        struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode);
+        struct proc_dir_entry *dp = PDE(file_inode(file));
         struct rtas_update_flash_t *uf;
         
         uf = (struct rtas_update_flash_t *) dp->data;
@@ -253,7 +253,7 @@ static void get_flash_status_msg(int status, char *buf)
 static ssize_t rtas_flash_read(struct file *file, char __user *buf,
                                size_t count, loff_t *ppos)
 {
-        struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode);
+        struct proc_dir_entry *dp = PDE(file_inode(file));
         struct rtas_update_flash_t *uf;
         char msg[RTAS_MSG_MAXLEN];
 
@@ -282,7 +282,7 @@ void rtas_block_ctor(void *ptr)
 static ssize_t rtas_flash_write(struct file *file, const char __user *buffer,
                                 size_t count, loff_t *off)
 {
-        struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode);
+        struct proc_dir_entry *dp = PDE(file_inode(file));
         struct rtas_update_flash_t *uf;
         char *p;
         int next_free;
@@ -374,7 +374,7 @@ static void manage_flash(struct rtas_manage_flash_t *args_buf)
 static ssize_t manage_flash_read(struct file *file, char __user *buf,
                                size_t count, loff_t *ppos)
 {
-        struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode);
+        struct proc_dir_entry *dp = PDE(file_inode(file));
         struct rtas_manage_flash_t *args_buf;
         char msg[RTAS_MSG_MAXLEN];
         int msglen;
@@ -391,7 +391,7 @@ static ssize_t manage_flash_read(struct file *file, char __user *buf,
 static ssize_t manage_flash_write(struct file *file, const char __user *buf,
                                 size_t count, loff_t *off)
 {
-        struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode);
+        struct proc_dir_entry *dp = PDE(file_inode(file));
         struct rtas_manage_flash_t *args_buf;
         const char reject_str[] = "0";
         const char commit_str[] = "1";
@@ -462,7 +462,7 @@ static int get_validate_flash_msg(struct rtas_validate_flash_t *args_buf,
 static ssize_t validate_flash_read(struct file *file, char __user *buf,
                                size_t count, loff_t *ppos)
 {
-        struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode);
+        struct proc_dir_entry *dp = PDE(file_inode(file));
         struct rtas_validate_flash_t *args_buf;
         char msg[RTAS_MSG_MAXLEN];
         int msglen;
@@ -477,7 +477,7 @@ static ssize_t validate_flash_read(struct file *file, char __user *buf,
 static ssize_t validate_flash_write(struct file *file, const char __user *buf,
                                     size_t count, loff_t *off)
 {
-        struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode);
+        struct proc_dir_entry *dp = PDE(file_inode(file));
         struct rtas_validate_flash_t *args_buf;
         int rc;
 
@@ -526,7 +526,7 @@ done:
 
 static int validate_flash_release(struct inode *inode, struct file *file)
 {
-        struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode);
+        struct proc_dir_entry *dp = PDE(file_inode(file));
         struct rtas_validate_flash_t *args_buf;
 
         args_buf = (struct rtas_validate_flash_t *) dp->data;
diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c
index 657e3f233a64..c9500ea7be2f 100644
--- a/arch/powerpc/platforms/cell/spufs/coredump.c
+++ b/arch/powerpc/platforms/cell/spufs/coredump.c
@@ -111,7 +111,7 @@ static int match_context(const void *v, struct file *file, unsigned fd)
         struct spu_context *ctx;
         if (file->f_op != &spufs_context_fops)
                 return 0;
-        ctx = SPUFS_I(file->f_dentry->d_inode)->i_ctx;
+        ctx = SPUFS_I(file_inode(file))->i_ctx;
         if (ctx->flags & SPU_CREATE_NOSCHED)
                 return 0;
         return fd + 1;
@@ -137,7 +137,7 @@ static struct spu_context *coredump_next_context(int *fd)
                 return NULL;
         *fd = n - 1;
         file = fcheck(*fd);
-        return SPUFS_I(file->f_dentry->d_inode)->i_ctx;
+        return SPUFS_I(file_inode(file))->i_ctx;
 }
 
 int spufs_coredump_extra_notes_size(void)
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 0cfece4cf6ef..68c57d38745a 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -1852,7 +1852,7 @@ out:
 
 static int spufs_mfc_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         int err = filemap_write_and_wait_range(inode->i_mapping, start, end);
         if (!err) {
                 mutex_lock(&inode->i_mutex);
@@ -2501,7 +2501,7 @@ static int switch_log_sprint(struct spu_context *ctx, char *tbuf, int n)
 static ssize_t spufs_switch_log_read(struct file *file, char __user *buf,
                              size_t len, loff_t *ppos)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
         int error = 0, cnt = 0;
 
@@ -2571,7 +2571,7 @@ static ssize_t spufs_switch_log_read(struct file *file, char __user *buf,
 
 static unsigned int spufs_switch_log_poll(struct file *file, poll_table *wait)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
         unsigned int mask = 0;
         int rc;
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index dba1ce235da5..99db6161e5c9 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -368,7 +368,7 @@ spufs_assert_affinity(unsigned int flags, struct spu_gang *gang,
                         return ERR_PTR(-EINVAL);
 
                 neighbor = get_spu_context(
-                                SPUFS_I(filp->f_dentry->d_inode)->i_ctx);
+                                SPUFS_I(file_inode(filp))->i_ctx);
 
                 if (!list_empty(&neighbor->aff_list) && !(neighbor->aff_head) &&
                     !list_is_last(&neighbor->aff_list, &gang->aff_list_head) &&
diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c
index baee994fe810..b045fdda4845 100644
--- a/arch/powerpc/platforms/cell/spufs/syscalls.c
+++ b/arch/powerpc/platforms/cell/spufs/syscalls.c
@@ -47,7 +47,7 @@ static long do_spu_run(struct file *filp,
         if (filp->f_op != &spufs_context_fops)
                 goto out;
 
-        i = SPUFS_I(filp->f_path.dentry->d_inode);
+        i = SPUFS_I(file_inode(filp));
         ret = spufs_run_spu(i->i_ctx, &npc, &status);
 
         if (put_user(npc, unpc))
diff --git a/arch/powerpc/platforms/pseries/hvCall_inst.c b/arch/powerpc/platforms/pseries/hvCall_inst.c
index c9311cfdfcac..cf4e7736e4f1 100644
--- a/arch/powerpc/platforms/pseries/hvCall_inst.c
+++ b/arch/powerpc/platforms/pseries/hvCall_inst.c
@@ -86,7 +86,7 @@ static int hcall_inst_seq_open(struct inode *inode, struct file *file)
 
         rc = seq_open(file, &hcall_inst_seq_ops);
         seq = file->private_data;
-        seq->private = file->f_path.dentry->d_inode->i_private;
+        seq->private = file_inode(file)->i_private;
 
         return rc;
 }
diff --git a/arch/powerpc/platforms/pseries/scanlog.c b/arch/powerpc/platforms/pseries/scanlog.c
index 554457294a2b..47f3cda2a68b 100644
--- a/arch/powerpc/platforms/pseries/scanlog.c
+++ b/arch/powerpc/platforms/pseries/scanlog.c
@@ -46,16 +46,12 @@ static struct proc_dir_entry *proc_ppc64_scan_log_dump;	/* The proc file */
 static ssize_t scanlog_read(struct file *file, char __user *buf,
                             size_t count, loff_t *ppos)
 {
-        struct inode * inode = file->f_path.dentry->d_inode;
-        struct proc_dir_entry *dp;
-        unsigned int *data;
+        struct proc_dir_entry *dp = PDE(file_inode(file));
+        unsigned int *data = (unsigned int *)dp->data;
         int status;
         unsigned long len, off;
         unsigned int wait_time;
 
-        dp = PDE(inode);
-        data = (unsigned int *)dp->data;
-
         if (count > RTAS_DATA_BUF_SIZE)
                 count = RTAS_DATA_BUF_SIZE;