LU-6179 llite: Implement ladvise lockahead

[fs/lustre-release.git] / lustre / llite / llite_internal.h

diff --git a/lustre/llite/llite_internal.h b/lustre/llite/llite_internal.h
index 9ebbaf7..a9ab610 100644 (file)
--- a/lustre/llite/llite_internal.h
+++ b/lustre/llite/llite_internal.h
@@ -642,6 +642,7 @@ struct ll_file_data {
         * true: failure is known, not report again.
         * false: unknown failure, should report. */
        bool fd_write_failed;
+       bool ll_lock_no_expand;
        rwlock_t fd_lock; /* protect lcc list */
        struct list_head fd_lccs; /* list of ll_cl_context */
 };
@@ -1222,11 +1223,18 @@ static inline int cl_glimpse_size(struct inode *inode)
        return cl_glimpse_size0(inode, 0);
 }
 
+/* AGL is 'asychronous glimpse lock', which is a speculative lock taken as
+ * part of statahead */
 static inline int cl_agl(struct inode *inode)
 {
        return cl_glimpse_size0(inode, 1);
 }
 
+int ll_file_lock_ahead(struct file *file, struct llapi_lu_ladvise *ladvise);
+
+int cl_io_get(struct inode *inode, struct lu_env **envout,
+             struct cl_io **ioout, __u16 *refcheck);
+
 static inline int ll_glimpse_size(struct inode *inode)
 {
        struct ll_inode_info *lli = ll_i2info(inode);