* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, 2016, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
struct lovsub_device;
struct lovsub_object;
-struct lovsub_lock;
enum lov_device_flags {
LOV_DEV_INITIALIZED = 1 << 0
LLT_EMPTY, /** empty file without body (mknod + truncate) */
LLT_RELEASED, /** file with no objects (data in HSM) */
LLT_COMP, /** support composite layout */
+ LLT_FOREIGN, /** foreign layout */
LLT_NR
};
return "RELEASED";
case LLT_COMP:
return "COMPOSITE";
+ case LLT_FOREIGN:
+ return "FOREIGN";
case LLT_NR:
LBUG();
}
*/
static inline __u32 lov_entry_type(struct lov_stripe_md_entry *lsme)
{
- if ((lov_pattern(lsme->lsme_pattern) == LOV_PATTERN_RAID0) ||
+ if ((lov_pattern(lsme->lsme_pattern) & LOV_PATTERN_RAID0) ||
(lov_pattern(lsme->lsme_pattern) == LOV_PATTERN_MDT))
- return lov_pattern(lsme->lsme_pattern);
+ return lov_pattern(lsme->lsme_pattern &
+ ~LOV_PATTERN_OVERSTRIPING);
return 0;
}
*/
int lo_preferred_mirror;
/**
+ * The last mirror that has been read successfully.
+ * This field is maintained so that subsequent read
+ * can take the advantage of last retries and avoid
+ * reading some unavailable OSTs.
+ */
+ int lo_last_read_mirror;
+ /**
* For FLR: the lock to protect access to
- * lo_preferred_mirror.
+ * lo_last_read_mirror.
*/
spinlock_t lo_write_lock;
/**
static inline unsigned lov_flr_state(const struct lov_object *lov)
{
if (lov->lo_type != LLT_COMP)
- return LCM_FL_NOT_FLR;
+ return LCM_FL_NONE;
return lov->u.composite.lo_flags & LCM_FL_FLR_MASK;
}
static inline bool lov_is_flr(const struct lov_object *lov)
{
- return lov_flr_state(lov) != LCM_FL_NOT_FLR;
+ return lov_flr_state(lov) != LCM_FL_NONE;
}
static inline struct lov_layout_entry *lov_entry(struct lov_object *lov, int i)
};
/**
- * Lock state at lovsub layer.
- */
-struct lovsub_lock {
- struct cl_lock_slice lss_cl;
-};
-
-/**
* Describe the environment settings for sublocks.
*/
struct lov_sublock_env {
struct cl_io *lse_io;
};
-struct lovsub_page {
- struct cl_page_slice lsb_cl;
-};
-
-
struct lov_thread_info {
struct cl_object_conf lti_stripe_conf;
struct lu_fid lti_fid;
struct ost_lvb lti_lvb;
struct cl_2queue lti_cl2q;
struct cl_page_list lti_plist;
- wait_queue_t lti_waiter;
+ wait_queue_entry_t lti_waiter;
};
/**
extern struct kmem_cache *lov_thread_kmem;
extern struct kmem_cache *lov_session_kmem;
-extern struct kmem_cache *lovsub_lock_kmem;
extern struct kmem_cache *lovsub_object_kmem;
int lov_object_init (const struct lu_env *env, struct lu_object *obj,
struct cl_lock *lock, const struct cl_io *io);
int lov_io_init (const struct lu_env *env, struct cl_object *obj,
struct cl_io *io);
-int lovsub_lock_init (const struct lu_env *env, struct cl_object *obj,
- struct cl_lock *lock, const struct cl_io *io);
int lov_lock_init_composite(const struct lu_env *env, struct cl_object *obj,
struct cl_lock *lock, const struct cl_io *io);
int lov_page_init (const struct lu_env *env, struct cl_object *ob,
struct cl_page *page, pgoff_t index);
-int lovsub_page_init (const struct lu_env *env, struct cl_object *ob,
- struct cl_page *page, pgoff_t index);
int lov_page_init_empty (const struct lu_env *env, struct cl_object *obj,
struct cl_page *page, pgoff_t index);
int lov_page_init_composite(const struct lu_env *env, struct cl_object *obj,
struct cl_page *page, pgoff_t index);
+int lov_page_init_foreign(const struct lu_env *env, struct cl_object *obj,
+ struct cl_page *page, pgoff_t index);
struct lu_object *lov_object_alloc (const struct lu_env *env,
const struct lu_object_header *hdr,
struct lu_device *dev);
+
struct lu_object *lovsub_object_alloc(const struct lu_env *env,
const struct lu_object_header *hdr,
struct lu_device *dev);
return container_of0(obj, struct lovsub_object, lso_cl.co_lu);
}
-static inline struct lovsub_lock *
-cl2lovsub_lock(const struct cl_lock_slice *slice)
-{
- LINVRNT(lovsub_is_object(&slice->cls_obj->co_lu));
- return container_of(slice, struct lovsub_lock, lss_cl);
-}
-
-static inline struct lovsub_lock *cl2sub_lock(const struct cl_lock *lock)
-{
- const struct cl_lock_slice *slice;
-
- slice = cl_lock_at(lock, &lovsub_device_type);
- LASSERT(slice != NULL);
- return cl2lovsub_lock(slice);
-}
-
static inline struct lov_lock *cl2lov_lock(const struct cl_lock_slice *slice)
{
LINVRNT(lov_is_object(&slice->cls_obj->co_lu));
return container_of0(slice, struct lov_page, lps_cl);
}
-static inline struct lovsub_page *
-cl2lovsub_page(const struct cl_page_slice *slice)
-{
- LINVRNT(lovsub_is_object(&slice->cpl_obj->co_lu));
- return container_of0(slice, struct lovsub_page, lsb_cl);
-}
-
static inline struct lov_io *cl2lov_io(const struct lu_env *env,
const struct cl_io_slice *ios)
{
git://git.whamcloud.com / fs / lustre-release.git / blobdiff