[AFS]: Implement the CB.InitCallBackState3 operation.

[powerpc.git] / fs / cifs / cifsfs.c

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 10c9029..faba4d6 100644 (file)
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1,7 +1,7 @@
 /*
  *   fs/cifs/cifsfs.c
  *
- *   Copyright (C) International Business Machines  Corp., 2002,2004
+ *   Copyright (C) International Business Machines  Corp., 2002,2007
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
  *   Common Internet FileSystem (CIFS) client
@@ -47,7 +47,11 @@
 
 #ifdef CONFIG_CIFS_QUOTA
 static struct quotactl_ops cifs_quotactl_ops;
-#endif
+#endif /* QUOTA */
+
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+extern struct export_operations cifs_export_ops;
+#endif /* EXPERIMENTAL */
 
 int cifsFYI = 0;
 int cifsERROR = 1;
@@ -62,9 +66,9 @@ unsigned int extended_security = CIFSSEC_DEF;
 unsigned int sign_CIFS_PDUs = 1;
 extern struct task_struct * oplockThread; /* remove sparse warning */
 struct task_struct * oplockThread = NULL;
-extern struct task_struct * dnotifyThread; /* remove sparse warning */
-struct task_struct * dnotifyThread = NULL;
-static struct super_operations cifs_super_ops; 
+/* extern struct task_struct * dnotifyThread; remove sparse warning */
+static struct task_struct * dnotifyThread = NULL;
+static const struct super_operations cifs_super_ops;
 unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE;
 module_param(CIFSMaxBufSize, int, 0);
 MODULE_PARM_DESC(CIFSMaxBufSize,"Network buffer size (not including header). Default: 16384 Range: 8192 to 130048");
@@ -91,8 +95,9 @@ cifs_read_super(struct super_block *sb, void *data,
        struct inode *inode;
        struct cifs_sb_info *cifs_sb;
        int rc = 0;
-
-       sb->s_flags |= MS_NODIRATIME; /* and probably even noatime */
+       
+       /* BB should we make this contingent on mount parm? */
+       sb->s_flags |= MS_NODIRATIME | MS_NOATIME;
        sb->s_fs_info = kzalloc(sizeof(struct cifs_sb_info),GFP_KERNEL);
        cifs_sb = CIFS_SB(sb);
        if(cifs_sb == NULL)
@@ -109,6 +114,10 @@ cifs_read_super(struct super_block *sb, void *data,
 
        sb->s_magic = CIFS_MAGIC_NUMBER;
        sb->s_op = &cifs_super_ops;
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+       if(experimEnabled != 0)
+               sb->s_export_op = &cifs_export_ops;
+#endif /* EXPERIMENTAL */      
 /*     if(cifs_sb->tcon->ses->server->maxBuf > MAX_CIFS_HDR_SIZE + 512)
            sb->s_blocksize = cifs_sb->tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE; */
 #ifdef CONFIG_CIFS_QUOTA
@@ -258,7 +267,10 @@ cifs_alloc_inode(struct super_block *sb)
        cifs_inode->clientCanCacheRead = FALSE;
        cifs_inode->clientCanCacheAll = FALSE;
        cifs_inode->vfs_inode.i_blkbits = 14;  /* 2**14 = CIFS_MAX_MSGSIZE */
-       cifs_inode->vfs_inode.i_flags = S_NOATIME | S_NOCMTIME;
+       
+       /* Can not set i_flags here - they get immediately overwritten
+          to zero by the VFS */
+/*     cifs_inode->vfs_inode.i_flags = S_NOATIME | S_NOCMTIME;*/
        INIT_LIST_HEAD(&cifs_inode->openFileList);
        return &cifs_inode->vfs_inode;
 }
@@ -283,6 +295,7 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m)
 
        if (cifs_sb) {
                if (cifs_sb->tcon) {
+/* BB add prepath to mount options displayed */
                        seq_printf(s, ",unc=%s", cifs_sb->tcon->treeName);
                        if (cifs_sb->tcon->ses) {
                                if (cifs_sb->tcon->ses->userName)
@@ -453,7 +466,7 @@ static int cifs_remount(struct super_block *sb, int *flags, char *data)
        return 0;
 }
 
-static struct super_operations cifs_super_ops = {
+static const struct super_operations cifs_super_ops = {
        .read_inode = cifs_read_inode,
        .put_super = cifs_put_super,
        .statfs = cifs_statfs,
@@ -511,7 +524,15 @@ static loff_t cifs_llseek(struct file *file, loff_t offset, int origin)
 {
        /* origin == SEEK_END => we must revalidate the cached file length */
        if (origin == SEEK_END) {
-               int retval = cifs_revalidate(file->f_path.dentry);
+               int retval;
+
+               /* some applications poll for the file length in this strange
+                  way so we must seek to end on non-oplocked files by
+                  setting the revalidate time to zero */
+               if(file->f_path.dentry->d_inode)                
+                       CIFS_I(file->f_path.dentry->d_inode)->time = 0;
+
+               retval = cifs_revalidate(file->f_path.dentry);
                if (retval < 0)
                        return (loff_t)retval;
        }
@@ -525,7 +546,7 @@ static struct file_system_type cifs_fs_type = {
        .kill_sb = kill_anon_super,
        /*  .fs_flags */
 };
-struct inode_operations cifs_dir_inode_ops = {
+const struct inode_operations cifs_dir_inode_ops = {
        .create = cifs_create,
        .lookup = cifs_lookup,
        .getattr = cifs_getattr,
@@ -547,7 +568,7 @@ struct inode_operations cifs_dir_inode_ops = {
 #endif
 };
 
-struct inode_operations cifs_file_inode_ops = {
+const struct inode_operations cifs_file_inode_ops = {
 /*     revalidate:cifs_revalidate, */
        .setattr = cifs_setattr,
        .getattr = cifs_getattr, /* do we need this anymore? */
@@ -561,7 +582,7 @@ struct inode_operations cifs_file_inode_ops = {
 #endif 
 };
 
-struct inode_operations cifs_symlink_inode_ops = {
+const struct inode_operations cifs_symlink_inode_ops = {
        .readlink = generic_readlink, 
        .follow_link = cifs_follow_link,
        .put_link = cifs_put_link,