[PATCH 2/2] documnt FMODE_ constants

Make sure all FMODE_ constants are documents, and ensure a coherent
style for the already existing comments.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/include/linux/fs.h b/include/linux/fs.h
index b3345a90e11af3454e551203c4d453afe2d6a1e1..4a853ef6fd35076d4aad21b488a97a513fb7bacc 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -63,21 +63,23 @@ 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 RW_MASK                1