[fs/9p] Add file_operations for cached mode in dotl protocol.

Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index f455c45a8c5f..28db7fb1d96e 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -44,6 +44,7 @@
 #include "cache.h"
 
 static const struct file_operations v9fs_cached_file_operations;
+static const struct file_operations v9fs_cached_file_operations_dotl;
 
 /**
  * v9fs_file_open - open a file (or directory)
@@ -92,6 +93,8 @@ int v9fs_file_open(struct inode *inode, struct file *file)
                 /* enable cached file options */
                 if(file->f_op == &v9fs_file_operations)
                         file->f_op = &v9fs_cached_file_operations;
+                else if (file->f_op == &v9fs_file_operations_dotl)
+                        file->f_op = &v9fs_cached_file_operations_dotl;
 
 #ifdef CONFIG_9P_FSCACHE
                 v9fs_cache_inode_set_cookie(inode, file);
@@ -299,6 +302,18 @@ static const struct file_operations v9fs_cached_file_operations = {
         .fsync = v9fs_file_fsync,
 };
 
+static const struct file_operations v9fs_cached_file_operations_dotl = {
+        .llseek = generic_file_llseek,
+        .read = do_sync_read,
+        .aio_read = generic_file_aio_read,
+        .write = v9fs_file_write,
+        .open = v9fs_file_open,
+        .release = v9fs_dir_release,
+        .lock = v9fs_file_lock,
+        .mmap = generic_file_readonly_mmap,
+        .fsync = v9fs_file_fsync,
+};
+
 const struct file_operations v9fs_file_operations = {
         .llseek = generic_file_llseek,
         .read = v9fs_file_read,