* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*/
/*
CIT_READ,
/** write system call */
CIT_WRITE,
- /** truncate system call */
- CIT_TRUNC,
+ /** truncate, utime system calls */
+ CIT_SETATTR,
/**
* page fault handling
*/
int wr_append;
} ci_wr;
struct cl_io_rw_common ci_rw;
- struct cl_truncate_io {
- /** new size to which file is truncated */
- size_t tr_size;
- struct obd_capa *tr_capa;
- } ci_truncate;
+ struct cl_setattr_io {
+ struct ost_lvb sa_attr;
+ unsigned int sa_valid;
+ struct obd_capa *sa_capa;
+ } ci_setattr;
struct cl_fault_io {
/** page index within file. */
pgoff_t ft_index;
struct cl_io *io,
pgoff_t start, pgoff_t end,
struct cl_page_list *plist,
- int nonblock);
+ int nonblock,
+ int *resched);
struct cl_page *cl_page_find (const struct lu_env *env,
struct cl_object *obj,
pgoff_t idx, struct page *vmpage,
struct cl_page *page);
struct cl_page *cl_vmpage_page (cfs_page_t *vmpage, struct cl_object *obj);
struct cl_page *cl_page_top (struct cl_page *page);
-int cl_is_page (const void *addr);
const struct cl_page_slice *cl_page_at(const struct cl_page *page,
const struct lu_device_type *dtype);
enum cl_lock_state cl_lock_intransit(const struct lu_env *env,
struct cl_lock *lock);
-
void cl_lock_extransit(const struct lu_env *env, struct cl_lock *lock,
enum cl_lock_state state);
-
int cl_lock_is_intransit(struct cl_lock *lock);
+int cl_lock_enqueue_wait(const struct lu_env *env, struct cl_lock *lock,
+ int keep_mutex);
+
/** \name statemachine statemachine
* Interface to lock state machine consists of 3 parts:
*
int cl_unuse_try (const struct lu_env *env, struct cl_lock *lock);
int cl_wait_try (const struct lu_env *env, struct cl_lock *lock);
int cl_use_try (const struct lu_env *env, struct cl_lock *lock, int atomic);
+
/** @} statemachine */
void cl_lock_signal (const struct lu_env *env, struct cl_lock *lock);
void cl_lock_delete(const struct lu_env *env, struct cl_lock *lock);
void cl_lock_error (const struct lu_env *env, struct cl_lock *lock, int error);
void cl_locks_prune(const struct lu_env *env, struct cl_object *obj, int wait);
-int cl_is_lock (const void *addr);
unsigned long cl_lock_weigh(const struct lu_env *env, struct cl_lock *lock);
return io->ci_type == CIT_WRITE && io->u.ci_wr.wr_append;
}
+/**
+ * True, iff \a io is a truncate(2).
+ */
+static inline int cl_io_is_trunc(const struct cl_io *io)
+{
+ return io->ci_type == CIT_SETATTR &&
+ (io->u.ci_setattr.sa_valid & ATTR_SIZE);
+}
+
struct cl_io *cl_io_top(struct cl_io *io);
void cl_io_print(const struct lu_env *env, void *cookie,