Cleanup macros for distinguishing mandatory locks

[linux-2.6-omap-h63xx.git] / fs / locks.c

diff --git a/fs/locks.c b/fs/locks.c
index 282b6c11670aa1c2f80239d2524378f8cd7bc2b0..9a3fe0d8285b178403aa76ce2d34358c7ec6c9d6 100644 (file)
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1119,7 +1119,7 @@ int locks_mandatory_area(int read_write, struct inode *inode,
                         * If we've been sleeping someone might have
                         * changed the permissions behind our back.
                         */
-                       if ((inode->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID)
+                       if (__mandatory_lock(inode))
                                continue;
                }
 
@@ -1343,6 +1343,7 @@ int fcntl_getlease(struct file *filp)
 int generic_setlease(struct file *filp, long arg, struct file_lock **flp)
 {
        struct file_lock *fl, **before, **my_before = NULL, *lease;
+       struct file_lock *new_fl = NULL;
        struct dentry *dentry = filp->f_path.dentry;
        struct inode *inode = dentry->d_inode;
        int error, rdlease_count = 0, wrlease_count = 0;
@@ -1369,6 +1370,11 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp)
                || (atomic_read(&inode->i_count) > 1)))
                goto out;
 
+       error = -ENOMEM;
+       new_fl = locks_alloc_lock();
+       if (new_fl == NULL)
+               goto out;
+
        /*
         * At this point, we know that if there is an exclusive
         * lease on this file, then we hold it on this filp
@@ -1411,18 +1417,15 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp)
        if (!leases_enable)
                goto out;
 
-       error = -ENOMEM;
-       fl = locks_alloc_lock();
-       if (fl == NULL)
-               goto out;
-
-       locks_copy_lock(fl, lease);
+       locks_copy_lock(new_fl, lease);
+       locks_insert_lock(before, new_fl);
 
-       locks_insert_lock(before, fl);
+       *flp = new_fl;
+       return 0;
 
-       *flp = fl;
-       error = 0;
 out:
+       if (new_fl != NULL)
+               locks_free_lock(new_fl);
        return error;
 }
 EXPORT_SYMBOL(generic_setlease);
@@ -1758,9 +1761,7 @@ int fcntl_setlk(unsigned int fd, struct file *filp, unsigned int cmd,
        /* Don't allow mandatory locks on files that may be memory mapped
         * and shared.
         */
-       if (IS_MANDLOCK(inode) &&
-           (inode->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID &&
-           mapping_writably_mapped(filp->f_mapping)) {
+       if (mandatory_lock(inode) && mapping_writably_mapped(filp->f_mapping)) {
                error = -EAGAIN;
                goto out;
        }
@@ -1884,9 +1885,7 @@ int fcntl_setlk64(unsigned int fd, struct file *filp, unsigned int cmd,
        /* Don't allow mandatory locks on files that may be memory mapped
         * and shared.
         */
-       if (IS_MANDLOCK(inode) &&
-           (inode->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID &&
-           mapping_writably_mapped(filp->f_mapping)) {
+       if (mandatory_lock(inode) && mapping_writably_mapped(filp->f_mapping)) {
                error = -EAGAIN;
                goto out;
        }
@@ -2080,9 +2079,7 @@ static void lock_get_status(char* out, struct file_lock *fl, int id, char *pfx)
                out += sprintf(out, "%6s %s ",
                             (fl->fl_flags & FL_ACCESS) ? "ACCESS" : "POSIX ",
                             (inode == NULL) ? "*NOINODE*" :
-                            (IS_MANDLOCK(inode) &&
-                             (inode->i_mode & (S_IXGRP | S_ISGID)) == S_ISGID) ?
-                            "MANDATORY" : "ADVISORY ");
+                            mandatory_lock(inode) ? "MANDATORY" : "ADVISORY ");
        } else if (IS_FLOCK(fl)) {
                if (fl->fl_type & LOCK_MAND) {
                        out += sprintf(out, "FLOCK  MSNFS     ");