Merge master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] One line missing from previous commit
  [CIFS] mtime bounces from local to remote when cifs nocmtime i_flags overwritten
  [CIFS] fix &&/& typo in cifs_setattr()

6 files changed, 28 insertions, 10 deletions

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index e8287c4..bc2c0ac 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -91,8 +91,9 @@ 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)
@@ -258,7 +259,10 @@ 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 +287,7 @@ 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)
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 7d95054..2498d64 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -35,9 +35,11 @@
 #define BAD_PROT 0xFFFF
 
 /* SMB command codes */
-/* Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
- (ie which include no useful data other than the SMB error code itself).
- Knowing this helps avoid response buffer allocations and copy in some cases */
+/*
+ * Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
+ * (ie which include no useful data other than the SMB error code itself).
+ * Knowing this helps avoid response buffer allocations and copy in some cases
+ */
 #define SMB_COM_CREATE_DIRECTORY      0x00 /* trivial response */
 #define SMB_COM_DELETE_DIRECTORY      0x01 /* trivial response */
 #define SMB_COM_CLOSE                 0x04 /* triv req/rsp, timestamp ignored */
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 07ff935..a1265c9 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1014,8 +1014,9 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
 	/* since the write may have blocked check these pointers again */
 	if (file->f_path.dentry) {
 		if (file->f_path.dentry->d_inode) {
-			file->f_path.dentry->d_inode->i_ctime =
-			file->f_path.dentry->d_inode->i_mtime = CURRENT_TIME;
+/*BB We could make this contingent on superblock ATIME flag too */
+/*			file->f_path.dentry->d_inode->i_ctime =
+			file->f_path.dentry->d_inode->i_mtime = CURRENT_TIME;*/
 			if (total_written > 0) {
 				if (*poffset > file->f_path.dentry->d_inode->i_size)
 					i_size_write(file->f_path.dentry->d_inode,
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 3f5bc83..37c6ce8 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -90,6 +90,9 @@ int cifs_get_inode_info_unix(struct inode **pinode,
 				(*pinode)->i_ino =
 					(unsigned long)findData.UniqueId;
 			} /* note ino incremented to unique num in new_inode */
+			if(sb->s_flags & MS_NOATIME)
+				(*pinode)->i_flags |= S_NOATIME | S_NOCMTIME;
+				
 			insert_inode_hash(*pinode);
 		}
 
@@ -421,6 +424,8 @@ int cifs_get_inode_info(struct inode **pinode,
 				} else /* do we need cast or hash to ino? */
 					(*pinode)->i_ino = inode_num;
 			} /* else ino incremented to unique num in new_inode*/
+			if(sb->s_flags & MS_NOATIME)
+				(*pinode)->i_flags |= S_NOATIME | S_NOCMTIME;
 			insert_inode_hash(*pinode);
 		}
 		inode = *pinode;
@@ -1359,7 +1364,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
 		and this check ensures that we are not being called from
 		sys_utimes in which case we ought to fail the call back to
 		the user when the server rejects the call */
-		if((rc) && (attrs->ia_valid &&
+		if((rc) && (attrs->ia_valid &
 			 (ATTR_MODE | ATTR_GID | ATTR_UID | ATTR_SIZE)))
 			rc = 0;
 	}
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 8e25996..6baea85 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -77,7 +77,8 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode,
 		cifsInode = CIFS_I(old_file->d_inode);
 		if(rc == 0) {
 			old_file->d_inode->i_nlink++;
-			old_file->d_inode->i_ctime = CURRENT_TIME;
+/* BB should we make this contingent on superblock flag NOATIME? */
+/*			old_file->d_inode->i_ctime = CURRENT_TIME;*/
 			/* parent dir timestamps will update from srv
 			within a second, would it really be worth it
 			to set the parent dir cifs inode time to zero
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index c6220bd..c444798 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -83,6 +83,8 @@ static int construct_dentry(struct qstr *qstring, struct file *file,
 				return rc;
 			rc = 1;
 		}
+		if(file->f_path.dentry->d_sb->s_flags & MS_NOATIME)
+			(*ptmp_inode)->i_flags |= S_NOATIME | S_NOCMTIME;
 	} else {
 		tmp_dentry = d_alloc(file->f_path.dentry, qstring);
 		if(tmp_dentry == NULL) {
@@ -98,6 +100,8 @@ static int construct_dentry(struct qstr *qstring, struct file *file,
 			tmp_dentry->d_op = &cifs_dentry_ops;
 		if(*ptmp_inode == NULL)
 			return rc;
+		if(file->f_path.dentry->d_sb->s_flags & MS_NOATIME)
+			(*ptmp_inode)->i_flags |= S_NOATIME | S_NOCMTIME;			
 		rc = 2;
 	}