fs/9p: mark inode attribute invalid on rename, unlink and setattr

rename, unlink and setattr can result in update of inode attribute.
So mark the cached copy invalid

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

2 files changed, 5 insertions, 0 deletions

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index a28fe9fa20a4..3e3ffe3ad1a0 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -521,6 +521,7 @@ static int v9fs_remove(struct inode *dir, struct dentry *file, int rmdir)
                         drop_nlink(dir);
                 } else
                         drop_nlink(file_inode);
+                v9fs_invalidate_inode_attr(file_inode);
         }
         return retval;
 }
@@ -884,6 +885,8 @@ clunk_newdir:
                                 inc_nlink(new_dir);
                         drop_nlink(old_dir);
                 }
+                v9fs_invalidate_inode_attr(old_inode);
+
                 /* successful rename */
                 d_move(old_dentry, new_dentry);
         }
@@ -983,6 +986,7 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
         if (retval < 0)
                 return retval;
 
+        v9fs_invalidate_inode_attr(dentry->d_inode);
         if ((iattr->ia_valid & ATTR_SIZE) &&
             iattr->ia_size != i_size_read(dentry->d_inode)) {
                 retval = vmtruncate(dentry->d_inode, iattr->ia_size);
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 5c04d66afb1d..8d5f7e328631 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -455,6 +455,7 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
         if (retval < 0)
                 return retval;
 
+        v9fs_invalidate_inode_attr(dentry->d_inode);
         if ((iattr->ia_valid & ATTR_SIZE) &&
             iattr->ia_size != i_size_read(dentry->d_inode)) {
                 retval = vmtruncate(dentry->d_inode, iattr->ia_size);