new helper: file_inode(file)

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

2 files changed, 9 insertions, 10 deletions

diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 991ab2d484dd..44543df9f400 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -157,7 +157,7 @@ static const u32 gfs2_to_fsflags[32] = {
 
 static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
 {
-	struct inode *inode = filp->f_path.dentry->d_inode;
+	struct inode *inode = file_inode(filp);
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_holder gh;
 	int error;
@@ -217,7 +217,7 @@ void gfs2_set_inode_flags(struct inode *inode)
  */
 static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
 {
-	struct inode *inode = filp->f_path.dentry->d_inode;
+	struct inode *inode = file_inode(filp);
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
 	struct buffer_head *bh;
@@ -293,7 +293,7 @@ out_drop_write:
 
 static int gfs2_set_flags(struct file *filp, u32 __user *ptr)
 {
-	struct inode *inode = filp->f_path.dentry->d_inode;
+	struct inode *inode = file_inode(filp);
 	u32 fsflags, gfsflags;
 
 	if (get_user(fsflags, ptr))
@@ -336,7 +336,7 @@ static long gfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 
 static void gfs2_size_hint(struct file *filep, loff_t offset, size_t size)
 {
-	struct inode *inode = filep->f_dentry->d_inode;
+	struct inode *inode = file_inode(filep);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
 	struct gfs2_inode *ip = GFS2_I(inode);
 	size_t blks = (size + sdp->sd_sb.sb_bsize - 1) >> sdp->sd_sb.sb_bsize_shift;
@@ -386,7 +386,7 @@ static int gfs2_allocate_page_backing(struct page *page)
 static int gfs2_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 gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
 	unsigned long last_index;
@@ -673,8 +673,7 @@ static ssize_t gfs2_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
 {
 	struct file *file = iocb->ki_filp;
 	size_t writesize = iov_length(iov, nr_segs);
-	struct dentry *dentry = file->f_dentry;
-	struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
+	struct gfs2_inode *ip = GFS2_I(file_inode(file));
 	int ret;
 
 	ret = gfs2_rs_alloc(ip);
@@ -772,7 +771,7 @@ static void calc_max_reserv(struct gfs2_inode *ip, loff_t max, loff_t *len,
 static long gfs2_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);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
 	struct gfs2_inode *ip = GFS2_I(inode);
 	unsigned int data_blocks = 0, ind_blocks = 0, rblocks;
@@ -938,7 +937,7 @@ static int do_flock(struct file *file, int cmd, struct file_lock *fl)
 {
 	struct gfs2_file *fp = file->private_data;
 	struct gfs2_holder *fl_gh = &fp->f_fl_gh;
-	struct gfs2_inode *ip = GFS2_I(file->f_path.dentry->d_inode);
+	struct gfs2_inode *ip = GFS2_I(file_inode(file));
 	struct gfs2_glock *gl;
 	unsigned int state;
 	int flags;
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index b7eff078fe90..04af1cf7ae34 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1257,7 +1257,7 @@ fail:
 
 int gfs2_fitrim(struct file *filp, void __user *argp)
 {
-	struct inode *inode = filp->f_dentry->d_inode;
+	struct inode *inode = file_inode(filp);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
 	struct request_queue *q = bdev_get_queue(sdp->sd_vfs->s_bdev);
 	struct buffer_head *bh;