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-rw-r--r--include/linux/fs.h19
1 files changed, 14 insertions, 5 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 17d8b1596215..e8cd6b839675 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2082,7 +2082,6 @@ extern int sync_filesystem(struct super_block *);
extern const struct file_operations def_blk_fops;
extern const struct file_operations def_chr_fops;
extern const struct file_operations bad_sock_fops;
-extern const struct file_operations def_fifo_fops;
#ifdef CONFIG_BLOCK
extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long);
extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long);
@@ -2154,10 +2153,6 @@ extern void init_special_inode(struct inode *, umode_t, dev_t);
extern void make_bad_inode(struct inode *);
extern int is_bad_inode(struct inode *);
-extern const struct file_operations read_pipefifo_fops;
-extern const struct file_operations write_pipefifo_fops;
-extern const struct file_operations rdwr_pipefifo_fops;
-
#ifdef CONFIG_BLOCK
/*
* return READ, READA, or WRITE
@@ -2225,6 +2220,20 @@ static inline struct inode *file_inode(struct file *f)
return f->f_inode;
}
+static inline void file_start_write(struct file *file)
+{
+ if (!S_ISREG(file_inode(file)->i_mode))
+ return;
+ __sb_start_write(file_inode(file)->i_sb, SB_FREEZE_WRITE, true);
+}
+
+static inline void file_end_write(struct file *file)
+{
+ if (!S_ISREG(file_inode(file)->i_mode))
+ return;
+ __sb_end_write(file_inode(file)->i_sb, SB_FREEZE_WRITE);
+}
+
/*
* get_write_access() gets write permission for a file.
* put_write_access() releases this write permission.