*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef _LUSTRE_CL_OBJECT_H
#define _LUSTRE_CL_OBJECT_H
unsigned long cra_rpc_pages;
/* Release callback. If readahead holds resources underneath, this
* function should be called to release it. */
- void (*cra_release)(const struct lu_env *env, void *cbdata);
+ void (*cra_release)(const struct lu_env *env,
+ struct cl_read_ahead *ra);
+
/* Callback data for cra_release routine */
- void *cra_cbdata;
+ void *cra_dlmlock;
+ void *cra_oio;
+
/* whether lock is in contention */
bool cra_contention;
};
struct cl_read_ahead *ra)
{
if (ra->cra_release != NULL)
- ra->cra_release(env, ra->cra_cbdata);
+ ra->cra_release(env, ra);
memset(ra, 0, sizeof(*ra));
}
struct cl_page_list *queue, int from, int to,
cl_commit_cbt cb);
/**
+ * Release active extent.
+ */
+ void (*cio_extent_release)(const struct lu_env *env,
+ const struct cl_io_slice *slice);
+ /**
* Decide maximum read ahead extent
*
* \pre io->ci_type == CIT_READ
int (*cio_read_ahead)(const struct lu_env *env,
const struct cl_io_slice *slice,
pgoff_t start, struct cl_read_ahead *ra);
+ /**
+ *
+ * Reserve LRU slots before IO.
+ */
+ int (*cio_lru_reserve) (const struct lu_env *env,
+ const struct cl_io_slice *slice,
+ loff_t pos, size_t bytes);
/**
* Optional debugging helper. Print given io slice.
*/
* \ingroup cl_lock
*/
enum cl_enq_flags {
- /**
- * instruct server to not block, if conflicting lock is found. Instead
- * -EWOULDBLOCK is returned immediately.
- */
- CEF_NONBLOCK = 0x00000001,
+ /**
+ * instruct server to not block, if conflicting lock is found. Instead
+ * -EAGAIN is returned immediately.
+ */
+ CEF_NONBLOCK = 0x00000001,
/**
* Tell lower layers this is a glimpse request, translated to
* LDLM_FL_HAS_INTENT at LDLM layer.
/* The following are used for fallocate(2) */
int sa_falloc_mode;
loff_t sa_falloc_offset;
- loff_t sa_falloc_len;
loff_t sa_falloc_end;
} ci_setattr;
struct cl_data_version_io {
loff_t ls_result;
int ls_whence;
} ci_lseek;
+ struct cl_misc_io {
+ time64_t lm_next_rpc_time;
+ } ci_misc;
} u;
struct cl_2queue ci_queue;
size_t ci_nob;
/**
* Sequential read hints.
*/
- ci_seq_read:1;
+ ci_seq_read:1,
+ /**
+ * Do parallel (async) submission of DIO RPCs. Note DIO is still sync
+ * to userspace, only the RPCs are submitted async, then waited for at
+ * the llite layer before returning.
+ */
+ ci_parallel_dio:1;
/**
* Bypass quota check
*/
int cl_io_commit_async (const struct lu_env *env, struct cl_io *io,
struct cl_page_list *queue, int from, int to,
cl_commit_cbt cb);
+void cl_io_extent_release (const struct lu_env *env, struct cl_io *io);
+int cl_io_lru_reserve(const struct lu_env *env, struct cl_io *io,
+ loff_t pos, size_t bytes);
int cl_io_read_ahead (const struct lu_env *env, struct cl_io *io,
pgoff_t start, struct cl_read_ahead *ra);
void cl_io_rw_advance (const struct lu_env *env, struct cl_io *io,
return io->ci_type == CIT_FAULT && io->u.ci_fault.ft_mkwrite;
}
+static inline int cl_io_is_fault_writable(const struct cl_io *io)
+{
+ return io->ci_type == CIT_FAULT && io->u.ci_fault.ft_writable;
+}
+
/**
* True, iff \a io is a truncate(2).
*/
#define cl_page_list_for_each_safe(page, temp, list) \
list_for_each_entry_safe((page), (temp), &(list)->pl_pages, cp_batch)
-void cl_page_list_init (struct cl_page_list *plist);
-void cl_page_list_add (struct cl_page_list *plist, struct cl_page *page);
-void cl_page_list_move (struct cl_page_list *dst, struct cl_page_list *src,
- struct cl_page *page);
+void cl_page_list_init(struct cl_page_list *plist);
+void cl_page_list_add(struct cl_page_list *plist, struct cl_page *page,
+ bool get_ref);
+void cl_page_list_move(struct cl_page_list *dst, struct cl_page_list *src,
+ struct cl_page *page);
void cl_page_list_move_head(struct cl_page_list *dst, struct cl_page_list *src,
- struct cl_page *page);
-void cl_page_list_splice (struct cl_page_list *list,
- struct cl_page_list *head);
-void cl_page_list_del (const struct lu_env *env,
- struct cl_page_list *plist, struct cl_page *page);
-void cl_page_list_disown (const struct lu_env *env,
- struct cl_io *io, struct cl_page_list *plist);
-void cl_page_list_assume (const struct lu_env *env,
- struct cl_io *io, struct cl_page_list *plist);
+ struct cl_page *page);
+void cl_page_list_splice(struct cl_page_list *list,
+ struct cl_page_list *head);
+void cl_page_list_del(const struct lu_env *env,
+ struct cl_page_list *plist, struct cl_page *page);
+void cl_page_list_disown(const struct lu_env *env,
+ struct cl_io *io, struct cl_page_list *plist);
+void cl_page_list_assume(const struct lu_env *env,
+ struct cl_io *io, struct cl_page_list *plist);
void cl_page_list_discard(const struct lu_env *env,
- struct cl_io *io, struct cl_page_list *plist);
-void cl_page_list_fini (const struct lu_env *env, struct cl_page_list *plist);
-
-void cl_2queue_init (struct cl_2queue *queue);
-void cl_2queue_add (struct cl_2queue *queue, struct cl_page *page);
-void cl_2queue_disown (const struct lu_env *env,
- struct cl_io *io, struct cl_2queue *queue);
-void cl_2queue_assume (const struct lu_env *env,
- struct cl_io *io, struct cl_2queue *queue);
-void cl_2queue_discard (const struct lu_env *env,
- struct cl_io *io, struct cl_2queue *queue);
-void cl_2queue_fini (const struct lu_env *env, struct cl_2queue *queue);
+ struct cl_io *io, struct cl_page_list *plist);
+void cl_page_list_fini(const struct lu_env *env, struct cl_page_list *plist);
+
+void cl_2queue_init(struct cl_2queue *queue);
+void cl_2queue_add(struct cl_2queue *queue, struct cl_page *page,
+ bool get_ref);
+void cl_2queue_disown(const struct lu_env *env, struct cl_io *io,
+ struct cl_2queue *queue);
+void cl_2queue_assume(const struct lu_env *env, struct cl_io *io,
+ struct cl_2queue *queue);
+void cl_2queue_discard(const struct lu_env *env, struct cl_io *io,
+ struct cl_2queue *queue);
+void cl_2queue_fini(const struct lu_env *env, struct cl_2queue *queue);
void cl_2queue_init_page(struct cl_2queue *queue, struct cl_page *page);
/** @} cl_page_list */
void cl_sync_io_init_notify(struct cl_sync_io *anchor, int nr,
struct cl_dio_aio *aio, cl_sync_io_end_t *end);
-int cl_sync_io_wait(const struct lu_env *env, struct cl_sync_io *anchor,
- long timeout);
+int cl_sync_io_wait(const struct lu_env *env, struct cl_sync_io *anchor,
+ long timeout);
void cl_sync_io_note(const struct lu_env *env, struct cl_sync_io *anchor,
int ioret);
-struct cl_dio_aio *cl_aio_alloc(struct kiocb *iocb);
-void cl_aio_free(struct cl_dio_aio *aio);
+int cl_sync_io_wait_recycle(const struct lu_env *env, struct cl_sync_io *anchor,
+ long timeout, int ioret);
+struct cl_dio_aio *cl_aio_alloc(struct kiocb *iocb, struct cl_object *obj);
+void cl_aio_free(const struct lu_env *env, struct cl_dio_aio *aio);
static inline void cl_sync_io_init(struct cl_sync_io *anchor, int nr)
{
cl_sync_io_init_notify(anchor, nr, NULL, NULL);
struct cl_dio_aio {
struct cl_sync_io cda_sync;
struct cl_page_list cda_pages;
+ struct cl_object *cda_obj;
struct kiocb *cda_iocb;
ssize_t cda_bytes;
unsigned cda_no_aio_complete:1;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff