diff options
author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
commit | 4fbe7358c7747a9165f776eb19addbb9baf7def2 (patch) | |
tree | bc7076b4f6d10c2cc2942539bb666e50f0b66954 /libdde_linux26/contrib/include/linux/blktrace_api.h | |
parent | 21adb5284111190057db245cfc2b54091920c373 (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.h | 209 |
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 |