lkml.org 
[lkml]   [2009]   [Feb]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] Separate FMODE_PREAD/FMODE_PWRITE into separate flags
Separate FMODE_PREAD and FMODE_PWRITE into separate flags to reflect the
reality that the read and write paths may have independent restrictions.

A git grep verifies that these flags are always cleared together so this new
behavior will only apply to interfaces that change to clear flags individually.

Signed-off-by: Paul Turner <pjt@google.com>
---
include/linux/fs.h | 13 +++++++------
1 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 6022f44..d6a51d9 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -60,18 +60,19 @@ struct inodes_stat_t {
#define FMODE_WRITE ((__force fmode_t)2)
/* file is seekable */
#define FMODE_LSEEK ((__force fmode_t)4)
-/* file can be accessed using pread/pwrite */
+/* file can be accessed using pread */
#define FMODE_PREAD ((__force fmode_t)8)
-#define FMODE_PWRITE FMODE_PREAD /* These go hand in hand */
+/* file can be accessed using pwrite */
+#define FMODE_PWRITE ((__force fmode_t)16)
/* File is opened for execution with sys_execve / sys_uselib */
-#define FMODE_EXEC ((__force fmode_t)16)
+#define FMODE_EXEC ((__force fmode_t)32)
/* File is opened with O_NDELAY (only set for block devices) */
-#define FMODE_NDELAY ((__force fmode_t)32)
+#define FMODE_NDELAY ((__force fmode_t)64)
/* File is opened with O_EXCL (only set for block devices) */
-#define FMODE_EXCL ((__force fmode_t)64)
+#define FMODE_EXCL ((__force fmode_t)128)
/* 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_WRITE_IOCTL ((__force fmode_t)256)

/*
* Don't update ctime and mtime.
--
1.5.4.5


\
 
 \ /
  Last update: 2009-02-05 03:09    [W:0.049 / U:0.172 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site