mm/memory_hotplug: export generic_online_page()

[linux.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index dde6dc4492a00a5f1925cc669c9b3b408334bef4..eeed80fab36a535fbdd020b6ff7d768020c8bb29 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -148,6 +148,8 @@ typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
 /* File is opened with O_PATH; almost nothing can be done with it */
 #define FMODE_PATH             ((__force fmode_t)0x4000)
 
+/* File needs atomic accesses to f_pos */
+#define FMODE_ATOMIC_POS       ((__force fmode_t)0x8000)
 /* Write access to underlying fs */
 #define FMODE_WRITER           ((__force fmode_t)0x10000)
 /* Has read method(s) */
@@ -3147,7 +3149,6 @@ enum {
 };
 
 void dio_end_io(struct bio *bio);
-void dio_warn_stale_pagecache(struct file *filp);
 
 ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
                             struct block_device *bdev, struct iov_iter *iter,
@@ -3192,6 +3193,11 @@ static inline void inode_dio_end(struct inode *inode)
                wake_up_bit(&inode->i_state, __I_DIO_WAKEUP);
 }
 
+/*
+ * Warn about a page cache invalidation failure diring a direct I/O write.
+ */
+void dio_warn_stale_pagecache(struct file *filp);
+
 extern void inode_set_flags(struct inode *inode, unsigned int flags,
                            unsigned int mask);