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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2013-07-27 22:15:01 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2013-07-27 22:15:01 +0000
commit7996a3d79d55b7f879dfd62e202bbfe2963718d3 (patch)
tree8d9f6759fec4099b9be503c11c7ed174f7204980 /libdde-linux26/libdde_linux26/contrib/include/linux/iocontext.h
parent4fbe7358c7747a9165f776eb19addbb9baf7def2 (diff)
really properly move files
Diffstat (limited to 'libdde-linux26/libdde_linux26/contrib/include/linux/iocontext.h')
-rw-r--r--libdde-linux26/libdde_linux26/contrib/include/linux/iocontext.h120
1 files changed, 0 insertions, 120 deletions
diff --git a/libdde-linux26/libdde_linux26/contrib/include/linux/iocontext.h b/libdde-linux26/libdde_linux26/contrib/include/linux/iocontext.h
deleted file mode 100644
index 08b987bc..00000000
--- a/libdde-linux26/libdde_linux26/contrib/include/linux/iocontext.h
+++ /dev/null
@@ -1,120 +0,0 @@
-#ifndef IOCONTEXT_H
-#define IOCONTEXT_H
-
-#include <linux/radix-tree.h>
-#include <linux/rcupdate.h>
-
-/*
- * This is the per-process anticipatory I/O scheduler state.
- */
-struct as_io_context {
- spinlock_t lock;
-
- void (*dtor)(struct as_io_context *aic); /* destructor */
- void (*exit)(struct as_io_context *aic); /* called on task exit */
-
- unsigned long state;
- atomic_t nr_queued; /* queued reads & sync writes */
- atomic_t nr_dispatched; /* number of requests gone to the drivers */
-
- /* IO History tracking */
- /* Thinktime */
- unsigned long last_end_request;
- unsigned long ttime_total;
- unsigned long ttime_samples;
- unsigned long ttime_mean;
- /* Layout pattern */
- unsigned int seek_samples;
- sector_t last_request_pos;
- u64 seek_total;
- sector_t seek_mean;
-};
-
-struct cfq_queue;
-struct cfq_io_context {
- void *key;
- unsigned long dead_key;
-
- struct cfq_queue *cfqq[2];
-
- struct io_context *ioc;
-
- unsigned long last_end_request;
- sector_t last_request_pos;
-
- unsigned long ttime_total;
- unsigned long ttime_samples;
- unsigned long ttime_mean;
-
- unsigned int seek_samples;
- u64 seek_total;
- sector_t seek_mean;
-
- struct list_head queue_list;
- struct hlist_node cic_list;
-
- void (*dtor)(struct io_context *); /* destructor */
- void (*exit)(struct io_context *); /* called on task exit */
-
- struct rcu_head rcu_head;
-};
-
-/*
- * I/O subsystem state of the associated processes. It is refcounted
- * and kmalloc'ed. These could be shared between processes.
- */
-struct io_context {
- atomic_t refcount;
- atomic_t nr_tasks;
-
- /* all the fields below are protected by this lock */
- spinlock_t lock;
-
- unsigned short ioprio;
- unsigned short ioprio_changed;
-
- /*
- * For request batching
- */
- unsigned long last_waited; /* Time last woken after wait for request */
- int nr_batch_requests; /* Number of requests left in the batch */
-
- struct as_io_context *aic;
- struct radix_tree_root radix_root;
- struct hlist_head cic_list;
- void *ioc_data;
-};
-
-static inline struct io_context *ioc_task_link(struct io_context *ioc)
-{
- /*
- * if ref count is zero, don't allow sharing (ioc is going away, it's
- * a race).
- */
- if (ioc && atomic_inc_not_zero(&ioc->refcount)) {
- atomic_inc(&ioc->nr_tasks);
- return ioc;
- }
-
- return NULL;
-}
-
-#ifdef CONFIG_BLOCK
-int put_io_context(struct io_context *ioc);
-void exit_io_context(void);
-struct io_context *get_io_context(gfp_t gfp_flags, int node);
-struct io_context *alloc_io_context(gfp_t gfp_flags, int node);
-void copy_io_context(struct io_context **pdst, struct io_context **psrc);
-#else
-static inline void exit_io_context(void)
-{
-}
-
-struct io_context;
-static inline int put_io_context(struct io_context *ioc)
-{
- return 1;
-}
-#endif
-
-#endif