X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Finclude%2Flclient.h;h=a1bc9aa1c7ab87f1afafb8b0d3bd24c12fd671af;hp=be16d0ffad67d9f7957583ad1f00750de3652989;hb=624a3ac233938153e889ae81f639cf46c0a8312b;hpb=65701b4a30efdb695776bcf690a2b3cabc928da1

diff --git a/lustre/include/lclient.h b/lustre/include/lclient.h
index be16d0f..a1bc9aa 100644
--- a/lustre/include/lclient.h
+++ b/lustre/include/lclient.h
@@ -1,6 +1,4 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
  * GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
@@ -109,6 +107,10 @@ struct ccc_io {
          * True iff io is processing glimpse right now.
          */
         int                  cui_glimpse;
+	/**
+	 * Layout version when this IO is initialized
+	 */
+	__u32                cui_layout_gen;
         /**
          * File descriptor against which IO is done.
          */
@@ -202,6 +204,18 @@ struct ccc_object {
          * \see ll_vm_open(), ll_vm_close().
          */
         cfs_atomic_t            cob_mmap_cnt;
+
+	/**
+	 * various flags
+	 * cob_discard_page_warned
+	 *     if pages belonging to this object are discarded when a client
+	 * is evicted, some debug info will be printed, this flag will be set
+	 * during processing the first discarded page, then avoid flooding
+	 * debug message for lots of discarded pages.
+	 *
+	 * \see ll_dirty_page_discard_warn.
+	 */
+	int			cob_discard_page_warned:1;
 };
 
 /**
@@ -406,4 +420,30 @@ int  cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock,
                       struct ccc_grouplock *cg);
 void cl_put_grouplock(struct ccc_grouplock *cg);
 
+/**
+ * New interfaces to get and put lov_stripe_md from lov layer. This violates
+ * layering because lov_stripe_md is supposed to be a private data in lov.
+ *
+ * NB: If you find you have to use these interfaces for your new code, please
+ * think about it again. These interfaces may be removed in the future for
+ * better layering. */
+struct lov_stripe_md *lov_lsm_get(struct cl_object *clobj);
+void lov_lsm_put(struct cl_object *clobj, struct lov_stripe_md *lsm);
+int lov_read_and_clear_async_rc(struct cl_object *clob);
+
+struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode);
+void ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm);
+
+/**
+ * Data structures for LRU management on lustre client mount
+ */
+struct cl_client_lru {
+	cfs_atomic_t	ccl_users; /* how many users(OSCs) of this data */
+	cfs_atomic_t	ccl_page_left;
+	unsigned long	ccl_page_max;
+	cfs_list_t	ccl_list; /* entities for lru - actually osc list */
+	cfs_spinlock_t	ccl_lock; /* lock for list */
+	unsigned int	ccl_reclaim_count; /* statistics */
+};
+
 #endif /*LCLIENT_H */