orangefs: do not allow client readahead cache without feature bit
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c
index 43c08b5..fe5e1ea 100644
--- a/fs/orangefs/file.c
+++ b/fs/orangefs/file.c
@@ -624,11 +624,14 @@
if (file->f_path.dentry->d_inode &&
file->f_path.dentry->d_inode->i_mapping &&
mapping_nrpages(&file->f_path.dentry->d_inode->i_data)) {
- gossip_debug(GOSSIP_INODE_DEBUG,
- "calling flush_racache on %pU\n",
- get_khandle_from_ino(inode));
- flush_racache(inode);
- gossip_debug(GOSSIP_INODE_DEBUG, "flush_racache finished\n");
+ if (orangefs_features & ORANGEFS_FEATURE_READAHEAD) {
+ gossip_debug(GOSSIP_INODE_DEBUG,
+ "calling flush_racache on %pU\n",
+ get_khandle_from_ino(inode));
+ flush_racache(inode);
+ gossip_debug(GOSSIP_INODE_DEBUG,
+ "flush_racache finished\n");
+ }
truncate_inode_pages(file->f_path.dentry->d_inode->i_mapping,
0);
}