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compat_ioctl: handle blk_trace ioctls

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blk_trace_setup is broken on x86_64 compat systems,
this makes the code work correctly on all 64 bit architectures
in compat mode.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Arnd Bergmann
2007-10-09 13:23:53 +02:00
committed by Jens Axboe
parent 7199d4cdd8
commit 171044d449
4 changed files with 94 additions and 29 deletions
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7
include/linux/blktrace_api.h
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@ -142,10 +142,14 @@ struct blk_user_trace_setup {
u32 pid;
};
#ifdef __KERNEL__
#if defined(CONFIG_BLK_DEV_IO_TRACE)
extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *);
extern void blk_trace_shutdown(struct request_queue *);
extern void __blk_add_trace(struct blk_trace *, sector_t, int, int, u32, int, int, void *);
extern int do_blk_trace_setup(struct request_queue *q,
struct block_device *bdev, struct blk_user_trace_setup *buts);
/**
* blk_add_trace_rq - Add a trace for a request oriented action
@ -286,6 +290,7 @@ static inline void blk_add_trace_remap(struct request_queue *q, struct bio *bio,
#define blk_add_trace_generic(q, rq, rw, what) do { } while (0)
#define blk_add_trace_pdu_int(q, what, bio, pdu) do { } while (0)
#define blk_add_trace_remap(q, bio, dev, f, t) do {} while (0)
#define do_blk_trace_setup(q, bdev, buts) do {} while (0)
#endif /* CONFIG_BLK_DEV_IO_TRACE */
#endif /* __KERNEL__ */
#endif