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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2013-07-27 22:07:53 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2013-07-27 22:07:53 +0000
commit4fbe7358c7747a9165f776eb19addbb9baf7def2 (patch)
treebc7076b4f6d10c2cc2942539bb666e50f0b66954 /libdde_linux26/contrib/include/linux/blktrace_api.h
parent21adb5284111190057db245cfc2b54091920c373 (diff)
rename libdde_linux26 into libdde-linux26 to make dpkg-source happy
Diffstat (limited to 'libdde_linux26/contrib/include/linux/blktrace_api.h')
-rw-r--r--libdde_linux26/contrib/include/linux/blktrace_api.h209
1 files changed, 0 insertions, 209 deletions
diff --git a/libdde_linux26/contrib/include/linux/blktrace_api.h b/libdde_linux26/contrib/include/linux/blktrace_api.h
deleted file mode 100644
index 6e915878..00000000
--- a/libdde_linux26/contrib/include/linux/blktrace_api.h
+++ /dev/null
@@ -1,209 +0,0 @@
-#ifndef BLKTRACE_H
-#define BLKTRACE_H
-
-#include <linux/types.h>
-#ifdef __KERNEL__
-#include <linux/blkdev.h>
-#include <linux/relay.h>
-#endif
-
-/*
- * Trace categories
- */
-enum blktrace_cat {
- BLK_TC_READ = 1 << 0, /* reads */
- BLK_TC_WRITE = 1 << 1, /* writes */
- BLK_TC_BARRIER = 1 << 2, /* barrier */
- BLK_TC_SYNC = 1 << 3, /* sync IO */
- BLK_TC_SYNCIO = BLK_TC_SYNC,
- BLK_TC_QUEUE = 1 << 4, /* queueing/merging */
- BLK_TC_REQUEUE = 1 << 5, /* requeueing */
- BLK_TC_ISSUE = 1 << 6, /* issue */
- BLK_TC_COMPLETE = 1 << 7, /* completions */
- BLK_TC_FS = 1 << 8, /* fs requests */
- BLK_TC_PC = 1 << 9, /* pc requests */
- BLK_TC_NOTIFY = 1 << 10, /* special message */
- BLK_TC_AHEAD = 1 << 11, /* readahead */
- BLK_TC_META = 1 << 12, /* metadata */
- BLK_TC_DISCARD = 1 << 13, /* discard requests */
- BLK_TC_DRV_DATA = 1 << 14, /* binary per-driver data */
-
- BLK_TC_END = 1 << 15, /* only 16-bits, reminder */
-};
-
-#define BLK_TC_SHIFT (16)
-#define BLK_TC_ACT(act) ((act) << BLK_TC_SHIFT)
-
-/*
- * Basic trace actions
- */
-enum blktrace_act {
- __BLK_TA_QUEUE = 1, /* queued */
- __BLK_TA_BACKMERGE, /* back merged to existing rq */
- __BLK_TA_FRONTMERGE, /* front merge to existing rq */
- __BLK_TA_GETRQ, /* allocated new request */
- __BLK_TA_SLEEPRQ, /* sleeping on rq allocation */
- __BLK_TA_REQUEUE, /* request requeued */
- __BLK_TA_ISSUE, /* sent to driver */
- __BLK_TA_COMPLETE, /* completed by driver */
- __BLK_TA_PLUG, /* queue was plugged */
- __BLK_TA_UNPLUG_IO, /* queue was unplugged by io */
- __BLK_TA_UNPLUG_TIMER, /* queue was unplugged by timer */
- __BLK_TA_INSERT, /* insert request */
- __BLK_TA_SPLIT, /* bio was split */
- __BLK_TA_BOUNCE, /* bio was bounced */
- __BLK_TA_REMAP, /* bio was remapped */
- __BLK_TA_ABORT, /* request aborted */
- __BLK_TA_DRV_DATA, /* driver-specific binary data */
-};
-
-/*
- * Notify events.
- */
-enum blktrace_notify {
- __BLK_TN_PROCESS = 0, /* establish pid/name mapping */
- __BLK_TN_TIMESTAMP, /* include system clock */
- __BLK_TN_MESSAGE, /* Character string message */
-};
-
-
-/*
- * Trace actions in full. Additionally, read or write is masked
- */
-#define BLK_TA_QUEUE (__BLK_TA_QUEUE | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_BACKMERGE (__BLK_TA_BACKMERGE | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_FRONTMERGE (__BLK_TA_FRONTMERGE | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_GETRQ (__BLK_TA_GETRQ | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_SLEEPRQ (__BLK_TA_SLEEPRQ | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_REQUEUE (__BLK_TA_REQUEUE | BLK_TC_ACT(BLK_TC_REQUEUE))
-#define BLK_TA_ISSUE (__BLK_TA_ISSUE | BLK_TC_ACT(BLK_TC_ISSUE))
-#define BLK_TA_COMPLETE (__BLK_TA_COMPLETE| BLK_TC_ACT(BLK_TC_COMPLETE))
-#define BLK_TA_PLUG (__BLK_TA_PLUG | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_UNPLUG_IO (__BLK_TA_UNPLUG_IO | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_UNPLUG_TIMER (__BLK_TA_UNPLUG_TIMER | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_INSERT (__BLK_TA_INSERT | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_SPLIT (__BLK_TA_SPLIT)
-#define BLK_TA_BOUNCE (__BLK_TA_BOUNCE)
-#define BLK_TA_REMAP (__BLK_TA_REMAP | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_ABORT (__BLK_TA_ABORT | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_DRV_DATA (__BLK_TA_DRV_DATA | BLK_TC_ACT(BLK_TC_DRV_DATA))
-
-#define BLK_TN_PROCESS (__BLK_TN_PROCESS | BLK_TC_ACT(BLK_TC_NOTIFY))
-#define BLK_TN_TIMESTAMP (__BLK_TN_TIMESTAMP | BLK_TC_ACT(BLK_TC_NOTIFY))
-#define BLK_TN_MESSAGE (__BLK_TN_MESSAGE | BLK_TC_ACT(BLK_TC_NOTIFY))
-
-#define BLK_IO_TRACE_MAGIC 0x65617400
-#define BLK_IO_TRACE_VERSION 0x07
-
-/*
- * The trace itself
- */
-struct blk_io_trace {
- __u32 magic; /* MAGIC << 8 | version */
- __u32 sequence; /* event number */
- __u64 time; /* in microseconds */
- __u64 sector; /* disk offset */
- __u32 bytes; /* transfer length */
- __u32 action; /* what happened */
- __u32 pid; /* who did it */
- __u32 device; /* device number */
- __u32 cpu; /* on what cpu did it happen */
- __u16 error; /* completion error */
- __u16 pdu_len; /* length of data after this trace */
-};
-
-/*
- * The remap event
- */
-struct blk_io_trace_remap {
- __be32 device;
- __be32 device_from;
- __be64 sector;
-};
-
-enum {
- Blktrace_setup = 1,
- Blktrace_running,
- Blktrace_stopped,
-};
-
-#define BLKTRACE_BDEV_SIZE 32
-
-/*
- * User setup structure passed with BLKTRACESTART
- */
-struct blk_user_trace_setup {
- char name[BLKTRACE_BDEV_SIZE]; /* output */
- __u16 act_mask; /* input */
- __u32 buf_size; /* input */
- __u32 buf_nr; /* input */
- __u64 start_lba;
- __u64 end_lba;
- __u32 pid;
-};
-
-#ifdef __KERNEL__
-#if defined(CONFIG_BLK_DEV_IO_TRACE)
-struct blk_trace {
- int trace_state;
- struct rchan *rchan;
- unsigned long *sequence;
- unsigned char *msg_data;
- u16 act_mask;
- u64 start_lba;
- u64 end_lba;
- u32 pid;
- u32 dev;
- struct dentry *dir;
- struct dentry *dropped_file;
- struct dentry *msg_file;
- atomic_t dropped;
-};
-
-extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *);
-extern void blk_trace_shutdown(struct request_queue *);
-extern int do_blk_trace_setup(struct request_queue *q,
- char *name, dev_t dev, struct blk_user_trace_setup *buts);
-extern void __trace_note_message(struct blk_trace *, const char *fmt, ...);
-
-/**
- * blk_add_trace_msg - Add a (simple) message to the blktrace stream
- * @q: queue the io is for
- * @fmt: format to print message in
- * args... Variable argument list for format
- *
- * Description:
- * Records a (simple) message onto the blktrace stream.
- *
- * NOTE: BLK_TN_MAX_MSG characters are output at most.
- * NOTE: Can not use 'static inline' due to presence of var args...
- *
- **/
-#define blk_add_trace_msg(q, fmt, ...) \
- do { \
- struct blk_trace *bt = (q)->blk_trace; \
- if (unlikely(bt)) \
- __trace_note_message(bt, fmt, ##__VA_ARGS__); \
- } while (0)
-#define BLK_TN_MAX_MSG 128
-
-extern void blk_add_driver_data(struct request_queue *q, struct request *rq,
- void *data, size_t len);
-extern int blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
- char __user *arg);
-extern int blk_trace_startstop(struct request_queue *q, int start);
-extern int blk_trace_remove(struct request_queue *q);
-
-#else /* !CONFIG_BLK_DEV_IO_TRACE */
-#define blk_trace_ioctl(bdev, cmd, arg) (-ENOTTY)
-#define blk_trace_shutdown(q) do { } while (0)
-#define do_blk_trace_setup(q, name, dev, buts) (-ENOTTY)
-#define blk_add_driver_data(q, rq, data, len) do {} while (0)
-#define blk_trace_setup(q, name, dev, arg) (-ENOTTY)
-#define blk_trace_startstop(q, start) (-ENOTTY)
-#define blk_trace_remove(q) (-ENOTTY)
-#define blk_add_trace_msg(q, fmt, ...) do { } while (0)
-
-#endif /* CONFIG_BLK_DEV_IO_TRACE */
-#endif /* __KERNEL__ */
-#endif