1 files changed, 17 insertions, 23 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 5b248d61430c..4a853ef6fd35 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -63,23 +63,24 @@ extern int dir_notify_enable;
 #define MAY_ACCESS 16
 #define MAY_OPEN 32
 
-#define FMODE_READ ((__force fmode_t)1)
-#define FMODE_WRITE ((__force fmode_t)2)
-
-/* Internal kernel extensions */
-#define FMODE_LSEEK     ((__force fmode_t)4)
-#define FMODE_PREAD     ((__force fmode_t)8)
-#define FMODE_PWRITE    FMODE_PREAD     /* These go hand in hand */
-
-/* File is being opened for execution. Primary users of this flag are
-   distributed filesystems that can use it to achieve correct ETXTBUSY
-   behavior for cross-node execution/opening_for_writing of files */
-#define FMODE_EXEC      ((__force fmode_t)16)
-
-#define FMODE_NDELAY    ((__force fmode_t)32)
-#define FMODE_EXCL      ((__force fmode_t)64)
+/* file is open for reading */
+#define FMODE_READ              ((__force fmode_t)1)
+/* file is open for writing */
+#define FMODE_WRITE             ((__force fmode_t)2)
+/* file is seekable */
+#define FMODE_LSEEK             ((__force fmode_t)4)
+/* file can be accessed using pread/pwrite */
+#define FMODE_PREAD             ((__force fmode_t)8)
+#define FMODE_PWRITE            FMODE_PREAD     /* These go hand in hand */
+/* File is opened for execution with sys_execve / sys_uselib */
+#define FMODE_EXEC              ((__force fmode_t)16)
+/* File is opened with O_NDELAY (only set for block devices) */
+#define FMODE_NDELAY            ((__force fmode_t)32)
+/* File is opened with O_EXCL (only set for block devices) */
+#define FMODE_EXCL              ((__force fmode_t)64)
+/* File is opened using open(.., 3, ..) and is writeable only for ioctls
+   (specialy hack for floppy.c) */
 #define FMODE_WRITE_IOCTL       ((__force fmode_t)128)
-#define FMODE_NDELAY_NOW        ((__force fmode_t)256)
 
 #define RW_MASK         1
 #define RWA_MASK        2
@@ -489,13 +490,6 @@ struct address_space_operations {
         int (*readpages)(struct file *filp, struct address_space *mapping,
                         struct list_head *pages, unsigned nr_pages);
 
-        /*
-         * ext3 requires that a successful prepare_write() call be followed
-         * by a commit_write() call - they must be balanced
-         */
-        int (*prepare_write)(struct file *, struct page *, unsigned, unsigned);
-        int (*commit_write)(struct file *, struct page *, unsigned, unsigned);
-
         int (*write_begin)(struct file *, struct address_space *mapping,
                                 loff_t pos, unsigned len, unsigned flags,
                                 struct page **pagep, void **fsdata);