patch-2.1.4 linux/include/linux/fs.h

• Lines: 57
• Date: Tue Oct 15 18:59:26 1996
• Orig file: v2.1.3/linux/include/linux/fs.h
• Orig date: Mon Sep 30 11:19:00 1996

diff -u --recursive --new-file v2.1.3/linux/include/linux/fs.h linux/include/linux/fs.h
@@ -71,6 +71,7 @@
 #define MS_NOEXEC	 8	/* Disallow program execution */
 #define MS_SYNCHRONOUS	16	/* Writes are synced at once */
 #define MS_REMOUNT	32	/* Alter flags of a mounted FS */
+#define MS_MANDLOCK	64	/* Allow mandatory locks on an FS */
 #define S_WRITE		128	/* Write on file/directory/symlink */
 #define S_APPEND	256	/* Append-only file */
 #define S_IMMUTABLE	512	/* Immutable file */
@@ -78,7 +79,7 @@
 /*
  * Flags that can be altered by MS_REMOUNT
  */
-#define MS_RMT_MASK (MS_RDONLY)
+#define MS_RMT_MASK (MS_RDONLY|MS_MANDLOCK)
 
 /*
  * Magic mount flag number. Has to be or-ed to the flag values.
@@ -99,6 +100,7 @@
 #define IS_NODEV(inode) ((inode)->i_flags & MS_NODEV)
 #define IS_NOEXEC(inode) ((inode)->i_flags & MS_NOEXEC)
 #define IS_SYNC(inode) ((inode)->i_flags & MS_SYNCHRONOUS)
+#define IS_MANDLOCK(inode) ((inode)->i_flags & MS_MANDLOCK)
 
 #define IS_WRITABLE(inode) ((inode)->i_flags & S_WRITE)
 #define IS_APPEND(inode) ((inode)->i_flags & S_APPEND)
@@ -374,27 +376,25 @@
 
 extern inline int locks_verify_locked(struct inode *inode)
 {
-#ifdef CONFIG_LOCK_MANDATORY	 
 	/* Candidates for mandatory locking have the setgid bit set
 	 * but no group execute bit -  an otherwise meaningless combination.
 	 */
-	if ((inode->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID)
+	if (IS_MANDLOCK(inode) &&
+	    (inode->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID)
 		return (locks_mandatory_locked(inode));
-#endif
 	return (0);
 }
 extern inline int locks_verify_area(int read_write, struct inode *inode,
 				    struct file *filp, unsigned int offset,
 				    unsigned int count)
 {
-#ifdef CONFIG_LOCK_MANDATORY	 
 	/* Candidates for mandatory locking have the setgid bit set
 	 * but no group execute bit -  an otherwise meaningless combination.
 	 */
-	if ((inode->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID)
+	if (IS_MANDLOCK(inode) &&
+	    (inode->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID)
 		return (locks_mandatory_area(read_write, inode, filp, offset,
 					     count));
-#endif
 	return (0);
 }