staging/lustre/llite: define per open file cache for ll_cl_context

[cascardo/linux.git] / drivers / staging / lustre / lustre / llite / llite_internal.h

diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index ce1f949..7fb949a 100644 (file)
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -640,6 +640,8 @@ struct ll_file_data {
         * false: unknown failure, should report.
         */
        bool fd_write_failed;
+       rwlock_t fd_lock; /* protect lcc list */
+       struct list_head fd_lccs; /* list of ll_cl_context */
 };
 
 struct lov_stripe_md;
@@ -715,8 +717,9 @@ void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras);
 int ll_readahead(const struct lu_env *env, struct cl_io *io,
                 struct cl_page_list *queue, struct ll_readahead_state *ras,
                 bool hit);
-struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage);
-void ll_cl_fini(struct ll_cl_context *lcc);
+struct ll_cl_context *ll_cl_find(struct file *file);
+void ll_cl_add(struct file *file, const struct lu_env *env, struct cl_io *io);
+void ll_cl_remove(struct file *file, const struct lu_env *env);
 
 extern const struct address_space_operations ll_aops;
 
@@ -858,11 +861,11 @@ struct vvp_io_args {
 };
 
 struct ll_cl_context {
+       struct list_head         lcc_list;
        void       *lcc_cookie;
+       const struct lu_env     *lcc_env;
        struct cl_io   *lcc_io;
        struct cl_page *lcc_page;
-       struct lu_env  *lcc_env;
-       int          lcc_refcheck;
 };
 
 struct ll_thread_info {
@@ -976,8 +979,8 @@ static inline __u64 ll_file_maxbytes(struct inode *inode)
 }
 
 /* llite/xattr.c */
-int ll_setxattr(struct dentry *dentry, const char *name,
-               const void *value, size_t size, int flags);
+int ll_setxattr(struct dentry *dentry, struct inode *inode,
+               const char *name, const void *value, size_t size, int flags);
 ssize_t ll_getxattr(struct dentry *dentry, struct inode *inode,
                    const char *name, void *buffer, size_t size);
 ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size);